mirror of
https://github.com/jtesta/ssh-audit.git
synced 2025-06-22 02:33:40 +02:00
Added warnings to all key exchanges that do not provide protection against quantum attacks.
This commit is contained in:
Joe Testa
@ -116,6 +116,9 @@
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"info": [
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"default key exchange from OpenSSH 7.4 to 8.9",
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"available since OpenSSH 7.4, Dropbear SSH 2018.76"
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],
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"warn": [
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"does not provide protection against post-quantum attacks"
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]
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}
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},
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@ -125,6 +128,9 @@
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"info": [
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"default key exchange from OpenSSH 6.5 to 7.3",
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"available since OpenSSH 6.4, Dropbear SSH 2013.62"
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],
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"warn": [
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"does not provide protection against post-quantum attacks"
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]
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}
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},
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@ -136,6 +142,9 @@
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],
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"info": [
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||||
"available since OpenSSH 5.7, Dropbear SSH 2013.62"
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],
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"warn": [
|
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"does not provide protection against post-quantum attacks"
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]
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}
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},
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@ -147,6 +156,9 @@
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],
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"info": [
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"available since OpenSSH 5.7, Dropbear SSH 2013.62"
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],
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"warn": [
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"does not provide protection against post-quantum attacks"
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]
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}
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},
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@ -158,6 +170,9 @@
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],
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"info": [
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"available since OpenSSH 5.7, Dropbear SSH 2013.62"
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],
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"warn": [
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"does not provide protection against post-quantum attacks"
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]
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}
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},
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@ -168,7 +183,8 @@
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"available since OpenSSH 7.3, Dropbear SSH 2016.73"
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],
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"warn": [
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"2048-bit modulus only provides 112-bits of symmetric strength"
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"2048-bit modulus only provides 112-bits of symmetric strength",
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"does not provide protection against post-quantum attacks"
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]
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}
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},
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@ -182,7 +198,8 @@
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"available since OpenSSH 3.9, Dropbear SSH 0.53"
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],
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"warn": [
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"2048-bit modulus only provides 112-bits of symmetric strength"
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"2048-bit modulus only provides 112-bits of symmetric strength",
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"does not provide protection against post-quantum attacks"
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]
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}
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},
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@ -191,6 +208,9 @@
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"notes": {
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"info": [
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"available since Dropbear SSH 2013.57"
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],
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"warn": [
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"does not provide protection against post-quantum attacks"
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]
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}
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}
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@ -349,12 +369,6 @@
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"name": "twofish256-ctr",
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"notes": ""
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}
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],
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"kex": [
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{
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"name": "diffie-hellman-group16-sha512",
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"notes": ""
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}
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]
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}
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},
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@ -371,9 +385,21 @@
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}
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],
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"kex": [
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{
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"name": "curve25519-sha256",
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"notes": ""
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},
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{
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"name": "curve25519-sha256@libssh.org",
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"notes": ""
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},
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{
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"name": "diffie-hellman-group14-sha256",
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"notes": ""
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},
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{
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"name": "kexguess2@matt.ucc.asn.au",
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"notes": ""
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}
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],
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"mac": [
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@ -5,22 +5,30 @@
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[0;32m(gen) compression: enabled (zlib@openssh.com)[0m
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[0;36m# key exchange algorithms[0m
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[0;32m(kex) curve25519-sha256 -- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76[0m
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[0;32m `- [info] default key exchange from OpenSSH 7.4 to 8.9[0m
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[0;32m(kex) curve25519-sha256@libssh.org -- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62[0m
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[0;32m `- [info] default key exchange from OpenSSH 6.5 to 7.3[0m
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||||
[0;33m(kex) curve25519-sha256 -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76
|
||||
`- [info] default key exchange from OpenSSH 7.4 to 8.9
|
||||
[0;33m(kex) curve25519-sha256@libssh.org -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62
|
||||
`- [info] default key exchange from OpenSSH 6.5 to 7.3
|
||||
[0;31m(kex) ecdh-sha2-nistp521 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
|
||||
[0;31m(kex) ecdh-sha2-nistp384 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
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||||
`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
|
||||
[0;31m(kex) ecdh-sha2-nistp256 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
|
||||
[0;33m(kex) diffie-hellman-group14-sha256 -- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 7.3, Dropbear SSH 2016.73
|
||||
[0;31m(kex) diffie-hellman-group14-sha1 -- [fail] using broken SHA-1 hash algorithm[0m
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||||
[0;33m `- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
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||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
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||||
`- [info] available since OpenSSH 3.9, Dropbear SSH 0.53
|
||||
[0;32m(kex) kexguess2@matt.ucc.asn.au -- [info] available since Dropbear SSH 2013.57[0m
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||||
[0;33m(kex) kexguess2@matt.ucc.asn.au -- [warn] does not provide protection against post-quantum attacks[0m
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||||
`- [info] available since Dropbear SSH 2013.57
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||||
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||||
[0;36m# host-key algorithms[0m
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||||
[0;31m(key) ecdsa-sha2-nistp256 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
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||||
@ -74,13 +82,15 @@
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[0;31m(rec) -hmac-sha1-96 -- mac algorithm to remove [0m
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||||
[0;31m(rec) -ssh-dss -- key algorithm to remove [0m
|
||||
[0;31m(rec) -ssh-rsa -- key algorithm to remove [0m
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||||
[0;32m(rec) +diffie-hellman-group16-sha512 -- kex algorithm to append [0m
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||||
[0;32m(rec) +twofish128-ctr -- enc algorithm to append [0m
|
||||
[0;32m(rec) +twofish256-ctr -- enc algorithm to append [0m
|
||||
[0;33m(rec) -aes128-cbc -- enc algorithm to remove [0m
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||||
[0;33m(rec) -aes256-cbc -- enc algorithm to remove [0m
|
||||
[0;33m(rec) -curve25519-sha256 -- kex algorithm to remove [0m
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||||
[0;33m(rec) -curve25519-sha256@libssh.org -- kex algorithm to remove [0m
|
||||
[0;33m(rec) -diffie-hellman-group14-sha256 -- kex algorithm to remove [0m
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||||
[0;33m(rec) -hmac-sha2-256 -- mac algorithm to remove [0m
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||||
[0;33m(rec) -kexguess2@matt.ucc.asn.au -- kex algorithm to remove [0m
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||||
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[0;36m# additional info[0m
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||||
[0;33m(nfo) For hardening guides on common OSes, please see: <https://www.ssh-audit.com/hardening_guides.html>[0m
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@ -173,6 +173,9 @@
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],
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||||
"info": [
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||||
"available since OpenSSH 2.3.0"
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],
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||||
"warn": [
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"does not provide protection against post-quantum attacks"
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]
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||||
}
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},
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@ -186,7 +189,8 @@
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"available since OpenSSH 3.9, Dropbear SSH 0.53"
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],
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"warn": [
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||||
"2048-bit modulus only provides 112-bits of symmetric strength"
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||||
"2048-bit modulus only provides 112-bits of symmetric strength",
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"does not provide protection against post-quantum attacks"
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||||
]
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||||
}
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},
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@ -201,6 +205,9 @@
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"info": [
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||||
"removed in OpenSSH 6.9: https://www.openssh.com/txt/release-6.9",
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"available since OpenSSH 2.3.0, Dropbear SSH 0.28"
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],
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"warn": [
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"does not provide protection against post-quantum attacks"
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]
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}
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}
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@ -10,13 +10,16 @@
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[0;36m# key exchange algorithms[0m
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||||
[0;31m(kex) diffie-hellman-group-exchange-sha1 (1024-bit) -- [fail] using small 1024-bit modulus[0m
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||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
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||||
`- [info] available since OpenSSH 2.3.0
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||||
[0;31m(kex) diffie-hellman-group14-sha1 -- [fail] using broken SHA-1 hash algorithm[0m
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||||
[0;33m `- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 3.9, Dropbear SSH 0.53
|
||||
[0;31m(kex) diffie-hellman-group1-sha1 -- [fail] using small 1024-bit modulus[0m
|
||||
[0;31m `- [fail] vulnerable to the Logjam attack: https://en.wikipedia.org/wiki/Logjam_(computer_security)[0m
|
||||
[0;31m `- [fail] using broken SHA-1 hash algorithm[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 2.3.0, Dropbear SSH 0.28
|
||||
`- [info] removed in OpenSSH 6.9: https://www.openssh.com/txt/release-6.9
|
||||
|
||||
|
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@ -195,6 +195,9 @@
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],
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||||
"info": [
|
||||
"available since OpenSSH 4.4"
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||||
],
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||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
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||||
]
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||||
}
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},
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@ -207,6 +210,9 @@
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||||
],
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||||
"info": [
|
||||
"available since OpenSSH 2.3.0"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -220,7 +226,8 @@
|
||||
"available since OpenSSH 3.9, Dropbear SSH 0.53"
|
||||
],
|
||||
"warn": [
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength"
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength",
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -235,6 +242,9 @@
|
||||
"info": [
|
||||
"removed in OpenSSH 6.9: https://www.openssh.com/txt/release-6.9",
|
||||
"available since OpenSSH 2.3.0, Dropbear SSH 0.28"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
}
|
||||
|
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@ -6,15 +6,19 @@
|
||||
|
||||
[0;36m# key exchange algorithms[0m
|
||||
[0;31m(kex) diffie-hellman-group-exchange-sha256 (1024-bit) -- [fail] using small 1024-bit modulus[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 4.4
|
||||
[0;31m(kex) diffie-hellman-group-exchange-sha1 (1024-bit) -- [fail] using small 1024-bit modulus[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 2.3.0
|
||||
[0;31m(kex) diffie-hellman-group14-sha1 -- [fail] using broken SHA-1 hash algorithm[0m
|
||||
[0;33m `- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 3.9, Dropbear SSH 0.53
|
||||
[0;31m(kex) diffie-hellman-group1-sha1 -- [fail] using small 1024-bit modulus[0m
|
||||
[0;31m `- [fail] vulnerable to the Logjam attack: https://en.wikipedia.org/wiki/Logjam_(computer_security)[0m
|
||||
[0;31m `- [fail] using broken SHA-1 hash algorithm[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 2.3.0, Dropbear SSH 0.28
|
||||
`- [info] removed in OpenSSH 6.9: https://www.openssh.com/txt/release-6.9
|
||||
|
||||
|
||||
@ -185,6 +185,9 @@
|
||||
],
|
||||
"info": [
|
||||
"available since OpenSSH 4.4"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -197,6 +200,9 @@
|
||||
],
|
||||
"info": [
|
||||
"available since OpenSSH 2.3.0"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -210,7 +216,8 @@
|
||||
"available since OpenSSH 3.9, Dropbear SSH 0.53"
|
||||
],
|
||||
"warn": [
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength"
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength",
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -225,6 +232,9 @@
|
||||
"info": [
|
||||
"removed in OpenSSH 6.9: https://www.openssh.com/txt/release-6.9",
|
||||
"available since OpenSSH 2.3.0, Dropbear SSH 0.28"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
}
|
||||
|
||||
@ -6,15 +6,19 @@
|
||||
|
||||
[0;36m# key exchange algorithms[0m
|
||||
[0;31m(kex) diffie-hellman-group-exchange-sha256 (1024-bit) -- [fail] using small 1024-bit modulus[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 4.4
|
||||
[0;31m(kex) diffie-hellman-group-exchange-sha1 (1024-bit) -- [fail] using small 1024-bit modulus[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 2.3.0
|
||||
[0;31m(kex) diffie-hellman-group14-sha1 -- [fail] using broken SHA-1 hash algorithm[0m
|
||||
[0;33m `- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 3.9, Dropbear SSH 0.53
|
||||
[0;31m(kex) diffie-hellman-group1-sha1 -- [fail] using small 1024-bit modulus[0m
|
||||
[0;31m `- [fail] vulnerable to the Logjam attack: https://en.wikipedia.org/wiki/Logjam_(computer_security)[0m
|
||||
[0;31m `- [fail] using broken SHA-1 hash algorithm[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 2.3.0, Dropbear SSH 0.28
|
||||
`- [info] removed in OpenSSH 6.9: https://www.openssh.com/txt/release-6.9
|
||||
|
||||
|
||||
@ -185,6 +185,9 @@
|
||||
],
|
||||
"info": [
|
||||
"available since OpenSSH 4.4"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -197,6 +200,9 @@
|
||||
],
|
||||
"info": [
|
||||
"available since OpenSSH 2.3.0"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -210,7 +216,8 @@
|
||||
"available since OpenSSH 3.9, Dropbear SSH 0.53"
|
||||
],
|
||||
"warn": [
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength"
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength",
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -225,6 +232,9 @@
|
||||
"info": [
|
||||
"removed in OpenSSH 6.9: https://www.openssh.com/txt/release-6.9",
|
||||
"available since OpenSSH 2.3.0, Dropbear SSH 0.28"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
}
|
||||
|
||||
@ -6,15 +6,19 @@
|
||||
|
||||
[0;36m# key exchange algorithms[0m
|
||||
[0;31m(kex) diffie-hellman-group-exchange-sha256 (1024-bit) -- [fail] using small 1024-bit modulus[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 4.4
|
||||
[0;31m(kex) diffie-hellman-group-exchange-sha1 (1024-bit) -- [fail] using small 1024-bit modulus[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 2.3.0
|
||||
[0;31m(kex) diffie-hellman-group14-sha1 -- [fail] using broken SHA-1 hash algorithm[0m
|
||||
[0;33m `- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 3.9, Dropbear SSH 0.53
|
||||
[0;31m(kex) diffie-hellman-group1-sha1 -- [fail] using small 1024-bit modulus[0m
|
||||
[0;31m `- [fail] vulnerable to the Logjam attack: https://en.wikipedia.org/wiki/Logjam_(computer_security)[0m
|
||||
[0;31m `- [fail] using broken SHA-1 hash algorithm[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 2.3.0, Dropbear SSH 0.28
|
||||
`- [info] removed in OpenSSH 6.9: https://www.openssh.com/txt/release-6.9
|
||||
|
||||
|
||||
@ -185,6 +185,9 @@
|
||||
],
|
||||
"info": [
|
||||
"available since OpenSSH 4.4"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -197,6 +200,9 @@
|
||||
],
|
||||
"info": [
|
||||
"available since OpenSSH 2.3.0"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -210,7 +216,8 @@
|
||||
"available since OpenSSH 3.9, Dropbear SSH 0.53"
|
||||
],
|
||||
"warn": [
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength"
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength",
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -225,6 +232,9 @@
|
||||
"info": [
|
||||
"removed in OpenSSH 6.9: https://www.openssh.com/txt/release-6.9",
|
||||
"available since OpenSSH 2.3.0, Dropbear SSH 0.28"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
}
|
||||
|
||||
@ -6,15 +6,19 @@
|
||||
|
||||
[0;36m# key exchange algorithms[0m
|
||||
[0;31m(kex) diffie-hellman-group-exchange-sha256 (1024-bit) -- [fail] using small 1024-bit modulus[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 4.4
|
||||
[0;31m(kex) diffie-hellman-group-exchange-sha1 (1024-bit) -- [fail] using small 1024-bit modulus[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 2.3.0
|
||||
[0;31m(kex) diffie-hellman-group14-sha1 -- [fail] using broken SHA-1 hash algorithm[0m
|
||||
[0;33m `- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 3.9, Dropbear SSH 0.53
|
||||
[0;31m(kex) diffie-hellman-group1-sha1 -- [fail] using small 1024-bit modulus[0m
|
||||
[0;31m `- [fail] vulnerable to the Logjam attack: https://en.wikipedia.org/wiki/Logjam_(computer_security)[0m
|
||||
[0;31m `- [fail] using broken SHA-1 hash algorithm[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 2.3.0, Dropbear SSH 0.28
|
||||
`- [info] removed in OpenSSH 6.9: https://www.openssh.com/txt/release-6.9
|
||||
|
||||
|
||||
@ -185,6 +185,9 @@
|
||||
],
|
||||
"info": [
|
||||
"available since OpenSSH 4.4"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -197,6 +200,9 @@
|
||||
],
|
||||
"info": [
|
||||
"available since OpenSSH 2.3.0"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -210,7 +216,8 @@
|
||||
"available since OpenSSH 3.9, Dropbear SSH 0.53"
|
||||
],
|
||||
"warn": [
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength"
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength",
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -225,6 +232,9 @@
|
||||
"info": [
|
||||
"removed in OpenSSH 6.9: https://www.openssh.com/txt/release-6.9",
|
||||
"available since OpenSSH 2.3.0, Dropbear SSH 0.28"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
}
|
||||
|
||||
@ -6,15 +6,19 @@
|
||||
|
||||
[0;36m# key exchange algorithms[0m
|
||||
[0;31m(kex) diffie-hellman-group-exchange-sha256 (1024-bit) -- [fail] using small 1024-bit modulus[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 4.4
|
||||
[0;31m(kex) diffie-hellman-group-exchange-sha1 (1024-bit) -- [fail] using small 1024-bit modulus[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 2.3.0
|
||||
[0;31m(kex) diffie-hellman-group14-sha1 -- [fail] using broken SHA-1 hash algorithm[0m
|
||||
[0;33m `- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 3.9, Dropbear SSH 0.53
|
||||
[0;31m(kex) diffie-hellman-group1-sha1 -- [fail] using small 1024-bit modulus[0m
|
||||
[0;31m `- [fail] vulnerable to the Logjam attack: https://en.wikipedia.org/wiki/Logjam_(computer_security)[0m
|
||||
[0;31m `- [fail] using broken SHA-1 hash algorithm[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 2.3.0, Dropbear SSH 0.28
|
||||
`- [info] removed in OpenSSH 6.9: https://www.openssh.com/txt/release-6.9
|
||||
|
||||
|
||||
@ -104,6 +104,9 @@
|
||||
"info": [
|
||||
"default key exchange from OpenSSH 7.4 to 8.9",
|
||||
"available since OpenSSH 7.4, Dropbear SSH 2018.76"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -113,6 +116,9 @@
|
||||
"info": [
|
||||
"default key exchange from OpenSSH 6.5 to 7.3",
|
||||
"available since OpenSSH 6.4, Dropbear SSH 2013.62"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -124,6 +130,9 @@
|
||||
],
|
||||
"info": [
|
||||
"available since OpenSSH 5.7, Dropbear SSH 2013.62"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -135,6 +144,9 @@
|
||||
],
|
||||
"info": [
|
||||
"available since OpenSSH 5.7, Dropbear SSH 2013.62"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -146,6 +158,9 @@
|
||||
],
|
||||
"info": [
|
||||
"available since OpenSSH 5.7, Dropbear SSH 2013.62"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -156,6 +171,9 @@
|
||||
"info": [
|
||||
"OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).",
|
||||
"available since OpenSSH 4.4"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -164,6 +182,9 @@
|
||||
"notes": {
|
||||
"info": [
|
||||
"available since OpenSSH 7.3, Dropbear SSH 2016.73"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -172,6 +193,9 @@
|
||||
"notes": {
|
||||
"info": [
|
||||
"available since OpenSSH 7.3"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -182,7 +206,8 @@
|
||||
"available since OpenSSH 7.3, Dropbear SSH 2016.73"
|
||||
],
|
||||
"warn": [
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength"
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength",
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -196,7 +221,8 @@
|
||||
"available since OpenSSH 3.9, Dropbear SSH 0.53"
|
||||
],
|
||||
"warn": [
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength"
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength",
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
}
|
||||
@ -407,6 +433,14 @@
|
||||
}
|
||||
},
|
||||
"warning": {
|
||||
"chg": {
|
||||
"kex": [
|
||||
{
|
||||
"name": "diffie-hellman-group-exchange-sha256",
|
||||
"notes": "increase modulus size to 3072 bits or larger"
|
||||
}
|
||||
]
|
||||
},
|
||||
"del": {
|
||||
"enc": [
|
||||
{
|
||||
@ -415,9 +449,25 @@
|
||||
}
|
||||
],
|
||||
"kex": [
|
||||
{
|
||||
"name": "curve25519-sha256",
|
||||
"notes": ""
|
||||
},
|
||||
{
|
||||
"name": "curve25519-sha256@libssh.org",
|
||||
"notes": ""
|
||||
},
|
||||
{
|
||||
"name": "diffie-hellman-group14-sha256",
|
||||
"notes": ""
|
||||
},
|
||||
{
|
||||
"name": "diffie-hellman-group16-sha512",
|
||||
"notes": ""
|
||||
},
|
||||
{
|
||||
"name": "diffie-hellman-group18-sha512",
|
||||
"notes": ""
|
||||
}
|
||||
],
|
||||
"mac": [
|
||||
|
||||
@ -5,24 +5,34 @@
|
||||
[0;32m(gen) compression: enabled (zlib@openssh.com)[0m
|
||||
|
||||
[0;36m# key exchange algorithms[0m
|
||||
[0;32m(kex) curve25519-sha256 -- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76[0m
|
||||
[0;32m `- [info] default key exchange from OpenSSH 7.4 to 8.9[0m
|
||||
[0;32m(kex) curve25519-sha256@libssh.org -- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62[0m
|
||||
[0;32m `- [info] default key exchange from OpenSSH 6.5 to 7.3[0m
|
||||
[0;33m(kex) curve25519-sha256 -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76
|
||||
`- [info] default key exchange from OpenSSH 7.4 to 8.9
|
||||
[0;33m(kex) curve25519-sha256@libssh.org -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62
|
||||
`- [info] default key exchange from OpenSSH 6.5 to 7.3
|
||||
[0;31m(kex) ecdh-sha2-nistp256 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
|
||||
[0;31m(kex) ecdh-sha2-nistp384 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
|
||||
[0;31m(kex) ecdh-sha2-nistp521 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
|
||||
[0;32m(kex) diffie-hellman-group-exchange-sha256 (4096-bit) -- [info] available since OpenSSH 4.4[0m
|
||||
[0;32m `- [info] OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).[0m
|
||||
[0;32m(kex) diffie-hellman-group16-sha512 -- [info] available since OpenSSH 7.3, Dropbear SSH 2016.73[0m
|
||||
[0;32m(kex) diffie-hellman-group18-sha512 -- [info] available since OpenSSH 7.3[0m
|
||||
[0;33m(kex) diffie-hellman-group-exchange-sha256 (4096-bit) -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 4.4
|
||||
`- [info] OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).
|
||||
[0;33m(kex) diffie-hellman-group16-sha512 -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 7.3, Dropbear SSH 2016.73
|
||||
[0;33m(kex) diffie-hellman-group18-sha512 -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 7.3
|
||||
[0;33m(kex) diffie-hellman-group14-sha256 -- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 7.3, Dropbear SSH 2016.73
|
||||
[0;31m(kex) diffie-hellman-group14-sha1 -- [fail] using broken SHA-1 hash algorithm[0m
|
||||
[0;33m `- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 3.9, Dropbear SSH 0.53
|
||||
|
||||
[0;36m# host-key algorithms[0m
|
||||
@ -80,8 +90,13 @@
|
||||
[0;31m(rec) -hmac-sha1 -- mac algorithm to remove [0m
|
||||
[0;31m(rec) -hmac-sha1-etm@openssh.com -- mac algorithm to remove [0m
|
||||
[0;31m(rec) -ssh-rsa -- key algorithm to remove [0m
|
||||
[0;33m(rec) !diffie-hellman-group-exchange-sha256 -- kex algorithm to change (increase modulus size to 3072 bits or larger) [0m
|
||||
[0;33m(rec) -chacha20-poly1305@openssh.com -- enc algorithm to remove [0m
|
||||
[0;33m(rec) -curve25519-sha256 -- kex algorithm to remove [0m
|
||||
[0;33m(rec) -curve25519-sha256@libssh.org -- kex algorithm to remove [0m
|
||||
[0;33m(rec) -diffie-hellman-group14-sha256 -- kex algorithm to remove [0m
|
||||
[0;33m(rec) -diffie-hellman-group16-sha512 -- kex algorithm to remove [0m
|
||||
[0;33m(rec) -diffie-hellman-group18-sha512 -- kex algorithm to remove [0m
|
||||
[0;33m(rec) -hmac-sha2-256 -- mac algorithm to remove [0m
|
||||
[0;33m(rec) -hmac-sha2-512 -- mac algorithm to remove [0m
|
||||
[0;33m(rec) -umac-128@openssh.com -- mac algorithm to remove [0m
|
||||
|
||||
@ -84,6 +84,9 @@
|
||||
"info": [
|
||||
"default key exchange from OpenSSH 7.4 to 8.9",
|
||||
"available since OpenSSH 7.4, Dropbear SSH 2018.76"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -93,6 +96,9 @@
|
||||
"info": [
|
||||
"default key exchange from OpenSSH 6.5 to 7.3",
|
||||
"available since OpenSSH 6.4, Dropbear SSH 2013.62"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -104,6 +110,9 @@
|
||||
],
|
||||
"info": [
|
||||
"available since OpenSSH 5.7, Dropbear SSH 2013.62"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -115,6 +124,9 @@
|
||||
],
|
||||
"info": [
|
||||
"available since OpenSSH 5.7, Dropbear SSH 2013.62"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -126,6 +138,9 @@
|
||||
],
|
||||
"info": [
|
||||
"available since OpenSSH 5.7, Dropbear SSH 2013.62"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -136,6 +151,9 @@
|
||||
"info": [
|
||||
"OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).",
|
||||
"available since OpenSSH 4.4"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -144,6 +162,9 @@
|
||||
"notes": {
|
||||
"info": [
|
||||
"available since OpenSSH 7.3, Dropbear SSH 2016.73"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -152,6 +173,9 @@
|
||||
"notes": {
|
||||
"info": [
|
||||
"available since OpenSSH 7.3"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -162,7 +186,8 @@
|
||||
"available since OpenSSH 7.3, Dropbear SSH 2016.73"
|
||||
],
|
||||
"warn": [
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength"
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength",
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -176,7 +201,8 @@
|
||||
"available since OpenSSH 3.9, Dropbear SSH 0.53"
|
||||
],
|
||||
"warn": [
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength"
|
||||
"2048-bit modulus only provides 112-bits of symmetric strength",
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
}
|
||||
@ -356,6 +382,14 @@
|
||||
}
|
||||
},
|
||||
"warning": {
|
||||
"chg": {
|
||||
"kex": [
|
||||
{
|
||||
"name": "diffie-hellman-group-exchange-sha256",
|
||||
"notes": "increase modulus size to 3072 bits or larger"
|
||||
}
|
||||
]
|
||||
},
|
||||
"del": {
|
||||
"enc": [
|
||||
{
|
||||
@ -364,9 +398,25 @@
|
||||
}
|
||||
],
|
||||
"kex": [
|
||||
{
|
||||
"name": "curve25519-sha256",
|
||||
"notes": ""
|
||||
},
|
||||
{
|
||||
"name": "curve25519-sha256@libssh.org",
|
||||
"notes": ""
|
||||
},
|
||||
{
|
||||
"name": "diffie-hellman-group14-sha256",
|
||||
"notes": ""
|
||||
},
|
||||
{
|
||||
"name": "diffie-hellman-group16-sha512",
|
||||
"notes": ""
|
||||
},
|
||||
{
|
||||
"name": "diffie-hellman-group18-sha512",
|
||||
"notes": ""
|
||||
}
|
||||
],
|
||||
"mac": [
|
||||
|
||||
@ -5,24 +5,34 @@
|
||||
[0;32m(gen) compression: enabled (zlib@openssh.com)[0m
|
||||
|
||||
[0;36m# key exchange algorithms[0m
|
||||
[0;32m(kex) curve25519-sha256 -- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76[0m
|
||||
[0;32m `- [info] default key exchange from OpenSSH 7.4 to 8.9[0m
|
||||
[0;32m(kex) curve25519-sha256@libssh.org -- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62[0m
|
||||
[0;32m `- [info] default key exchange from OpenSSH 6.5 to 7.3[0m
|
||||
[0;33m(kex) curve25519-sha256 -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76
|
||||
`- [info] default key exchange from OpenSSH 7.4 to 8.9
|
||||
[0;33m(kex) curve25519-sha256@libssh.org -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62
|
||||
`- [info] default key exchange from OpenSSH 6.5 to 7.3
|
||||
[0;31m(kex) ecdh-sha2-nistp256 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
|
||||
[0;31m(kex) ecdh-sha2-nistp384 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
|
||||
[0;31m(kex) ecdh-sha2-nistp521 -- [fail] using elliptic curves that are suspected as being backdoored by the U.S. National Security Agency[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 5.7, Dropbear SSH 2013.62
|
||||
[0;32m(kex) diffie-hellman-group-exchange-sha256 (4096-bit) -- [info] available since OpenSSH 4.4[0m
|
||||
[0;32m `- [info] OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).[0m
|
||||
[0;32m(kex) diffie-hellman-group16-sha512 -- [info] available since OpenSSH 7.3, Dropbear SSH 2016.73[0m
|
||||
[0;32m(kex) diffie-hellman-group18-sha512 -- [info] available since OpenSSH 7.3[0m
|
||||
[0;33m(kex) diffie-hellman-group-exchange-sha256 (4096-bit) -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 4.4
|
||||
`- [info] OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).
|
||||
[0;33m(kex) diffie-hellman-group16-sha512 -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 7.3, Dropbear SSH 2016.73
|
||||
[0;33m(kex) diffie-hellman-group18-sha512 -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 7.3
|
||||
[0;33m(kex) diffie-hellman-group14-sha256 -- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 7.3, Dropbear SSH 2016.73
|
||||
[0;31m(kex) diffie-hellman-group14-sha1 -- [fail] using broken SHA-1 hash algorithm[0m
|
||||
[0;33m `- [warn] 2048-bit modulus only provides 112-bits of symmetric strength[0m
|
||||
[0;33m `- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 3.9, Dropbear SSH 0.53
|
||||
|
||||
[0;36m# host-key algorithms[0m
|
||||
@ -72,8 +82,13 @@
|
||||
[0;31m(rec) -hmac-sha1-etm@openssh.com -- mac algorithm to remove [0m
|
||||
[0;32m(rec) +rsa-sha2-256 -- key algorithm to append [0m
|
||||
[0;32m(rec) +rsa-sha2-512 -- key algorithm to append [0m
|
||||
[0;33m(rec) !diffie-hellman-group-exchange-sha256 -- kex algorithm to change (increase modulus size to 3072 bits or larger) [0m
|
||||
[0;33m(rec) -chacha20-poly1305@openssh.com -- enc algorithm to remove [0m
|
||||
[0;33m(rec) -curve25519-sha256 -- kex algorithm to remove [0m
|
||||
[0;33m(rec) -curve25519-sha256@libssh.org -- kex algorithm to remove [0m
|
||||
[0;33m(rec) -diffie-hellman-group14-sha256 -- kex algorithm to remove [0m
|
||||
[0;33m(rec) -diffie-hellman-group16-sha512 -- kex algorithm to remove [0m
|
||||
[0;33m(rec) -diffie-hellman-group18-sha512 -- kex algorithm to remove [0m
|
||||
[0;33m(rec) -hmac-sha2-256 -- mac algorithm to remove [0m
|
||||
[0;33m(rec) -hmac-sha2-512 -- mac algorithm to remove [0m
|
||||
[0;33m(rec) -umac-128@openssh.com -- mac algorithm to remove [0m
|
||||
|
||||
@ -84,6 +84,9 @@
|
||||
"info": [
|
||||
"default key exchange from OpenSSH 7.4 to 8.9",
|
||||
"available since OpenSSH 7.4, Dropbear SSH 2018.76"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -93,6 +96,9 @@
|
||||
"info": [
|
||||
"default key exchange from OpenSSH 6.5 to 7.3",
|
||||
"available since OpenSSH 6.4, Dropbear SSH 2013.62"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -103,6 +109,9 @@
|
||||
"info": [
|
||||
"OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).",
|
||||
"available since OpenSSH 4.4"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
}
|
||||
@ -146,16 +155,6 @@
|
||||
"recommendations": {
|
||||
"informational": {
|
||||
"add": {
|
||||
"kex": [
|
||||
{
|
||||
"name": "diffie-hellman-group16-sha512",
|
||||
"notes": ""
|
||||
},
|
||||
{
|
||||
"name": "diffie-hellman-group18-sha512",
|
||||
"notes": ""
|
||||
}
|
||||
],
|
||||
"key": [
|
||||
{
|
||||
"name": "rsa-sha2-256",
|
||||
@ -169,12 +168,30 @@
|
||||
}
|
||||
},
|
||||
"warning": {
|
||||
"chg": {
|
||||
"kex": [
|
||||
{
|
||||
"name": "diffie-hellman-group-exchange-sha256",
|
||||
"notes": "increase modulus size to 3072 bits or larger"
|
||||
}
|
||||
]
|
||||
},
|
||||
"del": {
|
||||
"enc": [
|
||||
{
|
||||
"name": "chacha20-poly1305@openssh.com",
|
||||
"notes": ""
|
||||
}
|
||||
],
|
||||
"kex": [
|
||||
{
|
||||
"name": "curve25519-sha256",
|
||||
"notes": ""
|
||||
},
|
||||
{
|
||||
"name": "curve25519-sha256@libssh.org",
|
||||
"notes": ""
|
||||
}
|
||||
]
|
||||
}
|
||||
}
|
||||
|
||||
@ -5,12 +5,15 @@
|
||||
[0;32m(gen) compression: enabled (zlib@openssh.com)[0m
|
||||
|
||||
[0;36m# key exchange algorithms[0m
|
||||
[0;32m(kex) curve25519-sha256 -- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76[0m
|
||||
[0;32m `- [info] default key exchange from OpenSSH 7.4 to 8.9[0m
|
||||
[0;32m(kex) curve25519-sha256@libssh.org -- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62[0m
|
||||
[0;32m `- [info] default key exchange from OpenSSH 6.5 to 7.3[0m
|
||||
[0;32m(kex) diffie-hellman-group-exchange-sha256 (4096-bit) -- [info] available since OpenSSH 4.4[0m
|
||||
[0;32m `- [info] OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).[0m
|
||||
[0;33m(kex) curve25519-sha256 -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76
|
||||
`- [info] default key exchange from OpenSSH 7.4 to 8.9
|
||||
[0;33m(kex) curve25519-sha256@libssh.org -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62
|
||||
`- [info] default key exchange from OpenSSH 6.5 to 7.3
|
||||
[0;33m(kex) diffie-hellman-group-exchange-sha256 (4096-bit) -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 4.4
|
||||
`- [info] OpenSSH's GEX fallback mechanism was triggered during testing. Very old SSH clients will still be able to create connections using a 2048-bit modulus, though modern clients will use 4096. This can only be disabled by recompiling the code (see https://github.com/openssh/openssh-portable/blob/V_9_4/dh.c#L477).
|
||||
|
||||
[0;36m# host-key algorithms[0m
|
||||
[0;32m(key) ssh-ed25519 -- [info] available since OpenSSH 6.5, Dropbear SSH 2020.79[0m
|
||||
@ -34,11 +37,12 @@
|
||||
[0;32m(fin) ssh-ed25519: SHA256:UrnXIVH+7dlw8UqYocl48yUEcKrthGDQG2CPCgp7MxU[0m
|
||||
|
||||
[0;36m# algorithm recommendations (for OpenSSH 8.0)[0m
|
||||
[0;32m(rec) +diffie-hellman-group16-sha512 -- kex algorithm to append [0m
|
||||
[0;32m(rec) +diffie-hellman-group18-sha512 -- kex algorithm to append [0m
|
||||
[0;32m(rec) +rsa-sha2-256 -- key algorithm to append [0m
|
||||
[0;32m(rec) +rsa-sha2-512 -- key algorithm to append [0m
|
||||
[0;33m(rec) !diffie-hellman-group-exchange-sha256 -- kex algorithm to change (increase modulus size to 3072 bits or larger) [0m
|
||||
[0;33m(rec) -chacha20-poly1305@openssh.com -- enc algorithm to remove [0m
|
||||
[0;33m(rec) -curve25519-sha256 -- kex algorithm to remove [0m
|
||||
[0;33m(rec) -curve25519-sha256@libssh.org -- kex algorithm to remove [0m
|
||||
|
||||
[0;36m# additional info[0m
|
||||
[0;33m(nfo) For hardening guides on common OSes, please see: <https://www.ssh-audit.com/hardening_guides.html>[0m
|
||||
|
||||
@ -43,6 +43,9 @@
|
||||
"info": [
|
||||
"default key exchange from OpenSSH 7.4 to 8.9",
|
||||
"available since OpenSSH 7.4, Dropbear SSH 2018.76"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
@ -52,6 +55,9 @@
|
||||
"info": [
|
||||
"default key exchange from OpenSSH 6.5 to 7.3",
|
||||
"available since OpenSSH 6.4, Dropbear SSH 2013.62"
|
||||
],
|
||||
"warn": [
|
||||
"does not provide protection against post-quantum attacks"
|
||||
]
|
||||
}
|
||||
},
|
||||
|
||||
@ -4,10 +4,12 @@
|
||||
[0;32m(gen) compression: disabled[0m
|
||||
|
||||
[0;36m# key exchange algorithms[0m
|
||||
[0;32m(kex) curve25519-sha256 -- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76[0m
|
||||
[0;32m `- [info] default key exchange from OpenSSH 7.4 to 8.9[0m
|
||||
[0;32m(kex) curve25519-sha256@libssh.org -- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62[0m
|
||||
[0;32m `- [info] default key exchange from OpenSSH 6.5 to 7.3[0m
|
||||
[0;33m(kex) curve25519-sha256 -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 7.4, Dropbear SSH 2018.76
|
||||
`- [info] default key exchange from OpenSSH 7.4 to 8.9
|
||||
[0;33m(kex) curve25519-sha256@libssh.org -- [warn] does not provide protection against post-quantum attacks[0m
|
||||
`- [info] available since OpenSSH 6.4, Dropbear SSH 2013.62
|
||||
`- [info] default key exchange from OpenSSH 6.5 to 7.3
|
||||
[0;33m(kex) sntrup4591761x25519-sha512@tinyssh.org -- [warn] using experimental algorithm[0m
|
||||
`- [info] available since OpenSSH 8.0
|
||||
`- [info] the sntrup4591761 algorithm was withdrawn, as it may not provide strong post-quantum security
|
||||
|
||||
@ -165,7 +165,7 @@ class TestSSH2:
|
||||
self.audit(out, self._conf())
|
||||
out.write()
|
||||
lines = output_spy.flush()
|
||||
assert len(lines) == 78
|
||||
assert len(lines) == 74
|
||||
|
||||
def test_ssh2_server_invalid_first_packet(self, output_spy, virtual_socket):
|
||||
vsocket = virtual_socket
|
||||
|
||||
@ -8,6 +8,7 @@ class Test_SSH2_KexDB:
|
||||
@pytest.fixture(autouse=True)
|
||||
def init(self):
|
||||
self.db = SSH2_KexDB.get_db()
|
||||
self.pq_warning = SSH2_KexDB.WARN_NOT_PQ_SAFE
|
||||
|
||||
def test_ssh2_kexdb(self):
|
||||
'''Ensures that the SSH2_KexDB.ALGORITHMS dictionary is in the right format.'''
|
||||
@ -33,3 +34,38 @@ class Test_SSH2_KexDB:
|
||||
# The first entry denotes the versions when this algorithm was added to OpenSSH, Dropbear, and/or libssh, followed by when it was deprecated, and finally when it was removed. Hence it must have between 0 and 3 entries.
|
||||
added_entry = alg_data[0]
|
||||
assert 0 <= len(added_entry) <= 3
|
||||
|
||||
|
||||
def test_kex_pq_unsafe(self):
|
||||
'''Ensures that all key exchange algorithms are marked as post-quantum unsafe, unless they appear in a whitelist.'''
|
||||
|
||||
# These algorithms include protections against quantum attacks.
|
||||
kex_pq_safe = [
|
||||
"ecdh-nistp256-kyber-512r3-sha256-d00@openquantumsafe.org",
|
||||
"ecdh-nistp384-kyber-768r3-sha384-d00@openquantumsafe.org",
|
||||
"ecdh-nistp521-kyber-1024r3-sha512-d00@openquantumsafe.org",
|
||||
"ext-info-c",
|
||||
"ext-info-s",
|
||||
"kex-strict-c-v00@openssh.com",
|
||||
"kex-strict-s-v00@openssh.com",
|
||||
"mlkem768x25519-sha256",
|
||||
"sntrup4591761x25519-sha512@tinyssh.org",
|
||||
"sntrup761x25519-sha512@openssh.com",
|
||||
"sntrup761x25519-sha512",
|
||||
"x25519-kyber-512r3-sha256-d00@amazon.com",
|
||||
"x25519-kyber512-sha512@aws.amazon.com"
|
||||
]
|
||||
|
||||
failures = []
|
||||
for kex_name in self.db['kex']:
|
||||
|
||||
# Skip key exchanges that are PQ safe.
|
||||
if kex_name in kex_pq_safe:
|
||||
continue
|
||||
|
||||
# Ensure all other kex exchanges have the proper PQ unsafe flag set in their warnings list.
|
||||
alg_data = self.db['kex'][kex_name]
|
||||
if len(alg_data) < 3 or self.pq_warning not in alg_data[2]:
|
||||
failures.append(kex_name)
|
||||
|
||||
assert failures == []
|
||||
|
||||
Reference in New Issue
Block a user