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GNU a2ps Command Injection Vulnerability
Secunia Advisory: SA12375
Release Date: 2004-08-26
Last Update: 2004-12-10
Popularity: 8,130 views

Critical:
Less critical
Impact: Privilege escalation
Where: Local system
Solution Status: Unpatched

Software:GNU a2ps 4.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Rudolf Polzer has discovered a vulnerability in GNU a2ps, which potentially can be exploited by malicious, local users to gain escalated privileges.

The vulnerability is caused due to insufficient validation of shell escape characters in filenames and can potentially lead to execution of arbitrary commands.

This can e.g. be exploited when a user is using a wildcard in the filename for a2ps, which matches a filename that a malicious user can control (e.g. in a world-writeable directory).

Another exploit vector is when a2ps is used from within a script or program, which accesses files where the filename can be controlled by a malicious user.

The vulnerability has been confirmed in version 4.13. Other versions may also be affected.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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