TITLE:
TWiki ImageGalleryPlugin Shell Command Injection

SECUNIA ADVISORY ID:
SA14384

VERIFY ADVISORY:
http://secunia.com/advisories/14384/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
ImageGalleryPlugin 1.x (TWiki plugin)
http://secunia.com/product/4707/

DESCRIPTION:
Florian Weimer has reported a vulnerability in the TWiki Image
Gallery plugin, which can be exploited by malicious users to
compromise a vulnerable system.

The problem is that some configuration options used in ImageMagick
commands can be manipulated. This can be exploited to inject
arbitrary shell commands.

Successful exploitation requires that a user can create or edit image
galleries.

SOLUTION:
Edit the source code to ensure that input is properly sanitised.

PROVIDED AND/OR DISCOVERED BY:
Florian Weimer

ORIGINAL ADVISORY:
http://www.enyo.de/fw/security/notes/twiki-robustness.html

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