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Added potential fix for additional crash against Sun_SSH.

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This commit is contained in:
Joe Testa 2019-09-19 22:25:30 -04:00
parent 8c5493ae3e
commit 08677d65b1
1 changed files with 5 additions and 0 deletions
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ssh-audit.py
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@ -2210,6 +2210,11 @@ class KexDH(object): # pragma: nocover
# key blob (from which the fingerprint can be calculated).
def recv_reply(self, s, parse_host_key_size=True):
packet_type, payload = s.read_packet(2)
# Skip any & all MSG_DEBUG messages.
while packet_type == SSH.Protocol.MSG_DEBUG:
packet_type, payload = s.read_packet(2)
if packet_type != -1 and packet_type not in [SSH.Protocol.MSG_KEXDH_REPLY, SSH.Protocol.MSG_KEXDH_GEX_REPLY]:
# TODO: change Exception to something more specific.
raise Exception('Expected MSG_KEXDH_REPLY (%d) or MSG_KEXDH_GEX_REPLY (%d), but got %d instead.' % (SSH.Protocol.MSG_KEXDH_REPLY, SSH.Protocol.MSG_KEXDH_GEX_REPLY, packet_type))