Headline
CVE-2012-0814: security - Re: CVE Request: Debian (others?) openssh-server: Forced Command handling leaks private information to ssh clients
The auth_parse_options function in auth-options.c in sshd in OpenSSH before 5.7 provides debug messages containing authorized_keys command options, which allows remote authenticated users to obtain potentially sensitive information by reading these messages, as demonstrated by the shared user account required by Gitolite. NOTE: this can cross privilege boundaries because a user account may intentionally have no shell or filesystem access, and therefore may have no supported way to read an authorized_keys file in its own home directory.
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Date: Fri, 27 Jan 2012 11:40:47 +0100 From: Yves-Alexis Perez <corsac@…ian.org> To: oss-security@…ts.openwall.com Subject: Re: CVE Request: Debian (others?) openssh-server: Forced Command handling leaks private information to ssh clients
On jeu., 2012-01-26 at 19:49 -0500, Marc Deslauriers wrote:
Please use CVE-2012-0814 for this issue. Also please let me know if other Linux distributions are affected!
Looks like this (I haven’t tried…):
http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/auth-options.c.diff?r1=1.53;r2=1.54
By the way, is the ForceCommand (and other directives) really supposed to be private for different keys (or, more widely, for different matches for the same user).
Regards,
Yves-Alexis
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