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Arrow  Topic :

File Disclosure in Pagesetter for PostNuke


Arrow  SecurityAlert : 2336
Arrow  CVE : CVE-2007-1158
Arrow  SecurityRisk : Medium  Security Risk Medium  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Exploit Available : Yes
Arrow  Credit : D. Matscheko
Arrow  Published : 07.03.2007

Arrow  Affected Software : PostNuke 6.2.0 and 6.3.0 beta 5



Arrow  Advisory Content :  

SEC Consult Security Advisory 20070226-0
=======================================================================
title: File Disclosure in Pagesetter for PostNuke
program: Pagesetter page creation module
vulnerable version: 6.2.0
6.3.0 beta 5
impact: high
homepage: http://www.elfisk.dk
found: 2006-11-21
by: D. Matscheko / SEC-CONSULT /
www.sec-consult.com
=======================================================================

vendor description:
---------------

Pagesetter is a publishing module that allows the PostNuke users to
create web pages from structured data, with the data structure and
output templates defined by the PostNuke administrator.

[Source: http://www.elfisk.dk]

vulnerability overview:
---------------

The 3rd party module Pagesetter - up to its latest version (6.3.0
beta 5) - for PostNuke allows to read arbitrary files. An attacker
does not need to be logged in but has to know the filename.

proof of concept:
---------------

Here is a sample request that reads the file '/etc/passwd':

$ GET
'http://example.com/index.php?module=Pagesetter&type=file&func=preview&i
d=../../../../../../../../../etc/passwd%00'

vulnerable versions:
---------------

Version 6.2.0 as well as 6.3.0 beta 5 are vulnerable to the
described attack. No older versions were tested.

vendor status:
---------------
vendor notified: 2007-02-08
vendor response: 2007-02-08
patch available: 2007-02-08
coordinated disclosure: 2007-02-26

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
SEC Consult Unternehmensberatung GmbH

Office Vienna
Blindengasse 3
A-1080 Wien
Austria

Tel.: +43 / 1 / 890 30 43 - 0
Fax.: +43 / 1 / 890 30 43 - 25
Mail: research at sec-consult dot com
www.sec-consult.com

EOF David Matscheko / @2007





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