Secunia Security Advisory - A vulnerability has been reported in Drupal, which can be exploited by malicious people to compromise a vulnerable system.
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TITLE:
Drupal Comment Preview Arbitrary Code Execution
SECUNIA ADVISORY ID:
SA23960
VERIFY ADVISORY:
http://secunia.com/advisories/23960/
CRITICAL:
Highly critical
IMPACT:
System access
WHERE:
>From remote
SOFTWARE:
Drupal 4.x
http://secunia.com/product/342/
Drupal 5.x
http://secunia.com/product/13378/
DESCRIPTION:
A vulnerability has been reported in Drupal, which can be exploited
by malicious people to compromise a vulnerable system.
The vulnerability is caused due to an input sanitation error when
processing previews on comments, which can be exploited to execute
arbitrary code.
Successful exploitation requires "post comments" privileges and
access to multiple input filters (not the default).
The vulnerability is reported in Drupal 4.7.x branch prior to version
4.7.6 and Drupal 5.x branch prior to version 5.1.
SOLUTION:
Apply patches or update to version 4.7.6 and 5.1.
Patch for Drupal 4.7.5:
http://drupal.org/files/sa-2007-005/SA-2007-005-4.7.5.patch
Patch for Drupal 5.0:
http://drupal.org/files/sa-2007-005/SA-2007-005-5.0.patch
Drupal 4.7.6:
http://ftp.osuosl.org/pub/drupal/files/projects/drupal-4.7.6.tar.gz
Drupal 5.1:
http://ftp.osuosl.org/pub/drupal/files/projects/drupal-5.1.tar.gz
PROVIDED AND/OR DISCOVERED BY:
Drupal Security Team
ORIGINAL ADVISORY:
http://drupal.org/node/113935
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