OpenSSH S/KEY Challenge Response Authentication User Enumeration Leak
5
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
04/25/2007
07/25/2018
08/07/2007
05/27/2016
Description
OpenSSH 4.6 and earlier, when ChallengeResponseAuthentication is enabled, allows remote attackers to determine the existence of user accounts by attempting to authenticate via S/KEY, which displays a different response if the user account exists, a similar issue to CVE-2001-1483.
Solution(s)
- ssh-openssh-challenge-response-username-reveal-workaround
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