Secunia Security Advisory - A security issue has been reported in pam_ssh, which can be exploited by malicious people to disclose potentially sensitive information.
8156319ce5fb4eb5b91cb4cbe99c834bad1f0f8fb6873d15a3e711b31fe717b5
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TITLE:
pam_ssh Password Prompt User Enumeration Security Issue
SECUNIA ADVISORY ID:
SA34536
VERIFY ADVISORY:
http://secunia.com/advisories/34536/
DESCRIPTION:
A security issue has been reported in pam_ssh, which can be exploited
by malicious people to disclose potentially sensitive information.
The security issue is caused due to pam_ssh returning different
password prompts depending on whether or not a valid user name is
supplied, which can be exploited to enumerate valid user names.
The security issue is reported in version 1.92. Other versions may
also be affected.
SOLUTION:
Use a firewall to restrict access to the SSH server.
PROVIDED AND/OR DISCOVERED BY:
Kai Krakow
ORIGINAL ADVISORY:
http://bugs.gentoo.org/show_bug.cgi?id=263579
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