# general (gen) banner: SSH-1.99-OpenSSH_4.0 (gen) protocol SSH1 enabled (gen) software: OpenSSH 4.0 (gen) compatibility: OpenSSH 3.9-6.6, Dropbear SSH 0.53+ (some functionality from 0.52) (gen) compression: enabled (zlib) # security (cve) CVE-2016-3115 -- (CVSSv2: 5.5) bypass command restrictions via crafted X11 forwarding data (cve) CVE-2014-1692 -- (CVSSv2: 7.5) cause DoS via triggering error condition (memory corruption) (cve) CVE-2012-0814 -- (CVSSv2: 3.5) leak data via debug messages (cve) CVE-2011-5000 -- (CVSSv2: 3.5) cause DoS via large value in certain length field (memory consumption) (cve) CVE-2010-5107 -- (CVSSv2: 5.0) cause DoS via large number of connections (slot exhaustion) (cve) CVE-2010-4755 -- (CVSSv2: 4.0) cause DoS via crafted glob expression (CPU and memory consumption) (cve) CVE-2010-4478 -- (CVSSv2: 7.5) bypass authentication check via crafted values (cve) CVE-2008-5161 -- (CVSSv2: 2.6) recover plaintext data from ciphertext (cve) CVE-2008-4109 -- (CVSSv2: 5.0) cause DoS via multiple login attempts (slot exhaustion) (cve) CVE-2008-1657 -- (CVSSv2: 6.5) bypass command restrictions via modifying session file (cve) CVE-2008-1483 -- (CVSSv2: 6.9) hijack forwarded X11 connections (cve) CVE-2007-4752 -- (CVSSv2: 7.5) privilege escalation via causing an X client to be trusted (cve) CVE-2007-2243 -- (CVSSv2: 5.0) discover valid usernames through different responses (cve) CVE-2006-5052 -- (CVSSv2: 5.0) discover valid usernames through different responses (cve) CVE-2006-5051 -- (CVSSv2: 9.3) cause DoS or execute arbitrary code (double free) (cve) CVE-2006-4924 -- (CVSSv2: 7.8) cause DoS via crafted packet (CPU consumption) (cve) CVE-2006-0225 -- (CVSSv2: 4.6) execute arbitrary code (cve) CVE-2005-2798 -- (CVSSv2: 5.0) leak data about authentication credentials # key exchange algorithms (kex) diffie-hellman-group-exchange-sha1 (1024-bit) -- [fail] using small 1024-bit modulus  `- [warn] using weak hashing algorithm `- [info] available since OpenSSH 2.3.0 (kex) diffie-hellman-group14-sha1 -- [warn] using weak hashing algorithm `- [info] available since OpenSSH 3.9, Dropbear SSH 0.53 (kex) diffie-hellman-group1-sha1 -- [fail] removed (in server) since OpenSSH 6.7, unsafe algorithm  `- [fail] disabled (in client) since OpenSSH 7.0, logjam attack  `- [warn] using small 1024-bit modulus  `- [warn] using weak hashing algorithm `- [info] available since OpenSSH 2.3.0, Dropbear SSH 0.28 # host-key algorithms (key) ssh-rsa (1024-bit) -- [fail] using small 1024-bit modulus `- [info] available since OpenSSH 2.5.0, Dropbear SSH 0.28 (key) ssh-dss -- [fail] removed (in server) and disabled (in client) since OpenSSH 7.0, weak algorithm  `- [warn] using small 1024-bit modulus  `- [warn] using weak random number generator could reveal the key `- [info] available since OpenSSH 2.1.0, Dropbear SSH 0.28 # encryption algorithms (ciphers) (enc) aes128-cbc -- [fail] removed (in server) since OpenSSH 6.7, unsafe algorithm  `- [warn] using weak cipher mode `- [info] available since OpenSSH 2.3.0, Dropbear SSH 0.28 (enc) 3des-cbc -- [fail] removed (in server) since OpenSSH 6.7, unsafe algorithm  `- [warn] disabled (in client) since OpenSSH 7.4, unsafe algorithm  `- [warn] using weak cipher  `- [warn] using weak cipher mode  `- [warn] using small 64-bit block size `- [info] available since OpenSSH 1.2.2, Dropbear SSH 0.28 (enc) blowfish-cbc -- [fail] removed (in server) since OpenSSH 6.7, unsafe algorithm  `- [fail] disabled since Dropbear SSH 0.53  `- [warn] disabled (in client) since OpenSSH 7.2, legacy algorithm  `- [warn] using weak cipher mode  `- [warn] using small 64-bit block size `- [info] available since OpenSSH 1.2.2, Dropbear SSH 0.28 (enc) cast128-cbc -- [fail] removed (in server) since OpenSSH 6.7, unsafe algorithm  `- [warn] disabled (in client) since OpenSSH 7.2, legacy algorithm  `- [warn] using weak cipher mode  `- [warn] using small 64-bit block size `- [info] available since OpenSSH 2.1.0 (enc) arcfour -- [fail] removed (in server) since OpenSSH 6.7, unsafe algorithm  `- [warn] disabled (in client) since OpenSSH 7.2, legacy algorithm  `- [warn] using weak cipher `- [info] available since OpenSSH 2.1.0 (enc) aes192-cbc -- [fail] removed (in server) since OpenSSH 6.7, unsafe algorithm  `- [warn] using weak cipher mode `- [info] available since OpenSSH 2.3.0 (enc) aes256-cbc -- [fail] removed (in server) since OpenSSH 6.7, unsafe algorithm  `- [warn] using weak cipher mode `- [info] available since OpenSSH 2.3.0, Dropbear SSH 0.47 (enc) rijndael-cbc@lysator.liu.se -- [fail] removed (in server) since OpenSSH 6.7, unsafe algorithm  `- [warn] disabled (in client) since OpenSSH 7.2, legacy algorithm  `- [warn] using weak cipher mode `- [info] available since OpenSSH 2.3.0 (enc) aes128-ctr -- [info] available since OpenSSH 3.7, Dropbear SSH 0.52 (enc) aes192-ctr -- [info] available since OpenSSH 3.7 (enc) aes256-ctr -- [info] available since OpenSSH 3.7, Dropbear SSH 0.52 # message authentication code algorithms (mac) hmac-md5 -- [fail] removed (in server) since OpenSSH 6.7, unsafe algorithm  `- [warn] disabled (in client) since OpenSSH 7.2, legacy algorithm  `- [warn] using encrypt-and-MAC mode  `- [warn] using weak hashing algorithm `- [info] available since OpenSSH 2.1.0, Dropbear SSH 0.28 (mac) hmac-sha1 -- [warn] using encrypt-and-MAC mode  `- [warn] using weak hashing algorithm `- [info] available since OpenSSH 2.1.0, Dropbear SSH 0.28 (mac) hmac-ripemd160 -- [fail] removed (in server) since OpenSSH 6.7, unsafe algorithm  `- [warn] disabled (in client) since OpenSSH 7.2, legacy algorithm  `- [warn] using encrypt-and-MAC mode `- [info] available since OpenSSH 2.5.0 (mac) hmac-ripemd160@openssh.com -- [fail] removed (in server) since OpenSSH 6.7, unsafe algorithm  `- [warn] disabled (in client) since OpenSSH 7.2, legacy algorithm  `- [warn] using encrypt-and-MAC mode `- [info] available since OpenSSH 2.1.0 (mac) hmac-sha1-96 -- [fail] removed (in server) since OpenSSH 6.7, unsafe algorithm  `- [warn] disabled (in client) since OpenSSH 7.2, legacy algorithm  `- [warn] using encrypt-and-MAC mode  `- [warn] using weak hashing algorithm `- [info] available since OpenSSH 2.5.0, Dropbear SSH 0.47 (mac) hmac-md5-96 -- [fail] removed (in server) since OpenSSH 6.7, unsafe algorithm  `- [warn] disabled (in client) since OpenSSH 7.2, legacy algorithm  `- [warn] using encrypt-and-MAC mode  `- [warn] using weak hashing algorithm `- [info] available since OpenSSH 2.5.0 # fingerprints (fin) ssh-rsa: SHA256:YZ457EBcJTSxRKI3yXRgtAj3PBf5B9/F36b1SVooml4 # algorithm recommendations (for OpenSSH 4.0) (rec) !ssh-rsa -- key algorithm to change (increase modulus size to 2048 bits or larger)  (rec) -3des-cbc -- enc algorithm to remove  (rec) -aes128-cbc -- enc algorithm to remove  (rec) -aes192-cbc -- enc algorithm to remove  (rec) -aes256-cbc -- enc algorithm to remove  (rec) -arcfour -- enc algorithm to remove  (rec) -blowfish-cbc -- enc algorithm to remove  (rec) -cast128-cbc -- enc algorithm to remove  (rec) -diffie-hellman-group-exchange-sha1 -- kex algorithm to remove  (rec) -diffie-hellman-group1-sha1 -- kex algorithm to remove  (rec) -hmac-md5 -- mac algorithm to remove  (rec) -hmac-md5-96 -- mac algorithm to remove  (rec) -hmac-ripemd160 -- mac algorithm to remove  (rec) -hmac-ripemd160@openssh.com -- mac algorithm to remove  (rec) -hmac-sha1-96 -- mac algorithm to remove  (rec) -rijndael-cbc@lysator.liu.se -- enc algorithm to remove  (rec) -ssh-dss -- key algorithm to remove