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TITLE:
Drupal ImageCache Module Script Insertion and Security Bypass

SECUNIA ADVISORY ID:
SA36412

VERIFY ADVISORY:
http://secunia.com/advisories/36412/

DESCRIPTION:
Some vulnerabilities have been reported in the ImageCache module for
Drupal, which can be exploited by malicious users to bypass certain
security restrictions and conduct script insertion attacks.

1) Certain input passed to user-supplied preset variables is not
properly sanitised before being used. This can be exploited to insert
arbitrary HTML and script code, which is executed in a user's browser
session in context of an affected site when the malicious data is
viewed.

Successful exploitation requires "administer imagecache"
permissions.

2) The module does not properly restrict access to original images
when generating derivative images, which can be exploited to access
original images without having the proper permissions.

Successful exploitation requires that the private filesystem is
enabled and that the attacker knows the filename of the image.

The vulnerability is reported in versions 5.x prior to 5.x-2.5 and
6.x prior to 6.x-2.0-beta10.

SOLUTION:
Update to version 5.x-2.5 or 6.x-2.0-beta10.

http://drupal.org/node/554086
http://drupal.org/node/554090

PROVIDED AND/OR DISCOVERED BY:
The vendor credits:
1) Justin Klein Keane
2) Karl Scheirer

ORIGINAL ADVISORY:
SA-CONTRIB-2009-051:
http://drupal.org/node/554084

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