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SystemImager "si_mkbootserver" Insecure Temporary Files
Secunia Advisory: SA32820
Release Date: 2008-11-20
Popularity: 713 views

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

Software:SystemImager 4.x

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CVE reference:CVE-2008-5156


Description:
A security issue has been reported in SystemImager, which can be exploited by malicious, local users to perform certain actions with escalated privileges.

The security issue is caused due to the "sbin/si_mkbootserver" script using temporary files in an insecure manner. This can be exploited to overwrite arbitrary files via symlink attacks.

The security issue affects version 4.0.2. Other versions may also be affected.

Solution:
Restrict local access to trusted users only.

Provided and/or discovered by:
Reported by Dmitry E. Oboukhov via the "debian-devel" mailing list.

Original Advisory:
http://lists.debian.org/debian-devel/2008/08/msg00347.html


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