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Now handles exceptions during server KEX parsing more gracefully.

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This commit is contained in:
Joe Testa
2021-05-24 19:50:25 -04:00
parent 32ed9242af
commit aa21df29e7
4 changed files with 25 additions and 8 deletions
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7
src/ssh_audit/ssh_audit.py
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@@ -895,7 +895,12 @@ def audit(out: OutputBuffer, aconf: AuditConf, sshv: Optional[int] = None, print
if sshv == 1:
program_retval = output(out, aconf, banner, header, pkm=SSH1_PublicKeyMessage.parse(payload))
elif sshv == 2:
kex = SSH2_Kex.parse(payload)
try:
kex = SSH2_Kex.parse(payload)
except Exception:
out.fail("Failed to parse server's kex. Stack trace:\n%s" % str(traceback.format_exc()))
return exitcodes.CONNECTION_ERROR
if aconf.client_audit is False:
HostKeyTest.run(out, s, kex)
GEXTest.run(out, s, kex)