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Category:   Application (Multimedia)  >   PhotoPost Classifieds Vendors:   All Enthusiast, Inc.
PhotoPost Classifieds Input Validation Hole Lets Remote Users Upload Scripting Files
SecurityTracker Alert ID:  1012764
SecurityTracker URL:  http://securitytracker.com/id/1012764
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Updated:  Jan 4 2005
Original Entry Date:  Jan 4 2005
Impact:   Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): prior to 2.02
Description:   Several input validation vulnerabilities were reported in PhotoPost Classifieds. A remote user can upload scripting files to the target server. A remote user can also inject SQL commands and conduct cross-site scripting attacks.

James Bercegay of the GulfTech Security Research Team reported that a remote user can upload scripting files with a specially crafted file extension (e.g., 'test.jpg.php.jpg.php') when creating a new classified ad.

It is also reported that a remote user can submit a specially crafted URL to inject SQL commands. A demonstration exploit URL is of the following form:

http://[target]/path/showproduct.php?product=[INT][SQL]
http://[target]/path/contact.php?contact=[INT]&productid=[INT][SQL]
http://[target]/path/addfav.php?product=[INT][SQL]&do=add
http://[target]/path/showproduct.php?product=[INT]&sort=[INT][SQL]&cat=[INT]
http://[target]/path/showcat.php?cat=[INT][SQL]
http://[target]/path/index.php?cat=[INT][SQL]
http://[target]/path/comments.php?product=[INT]&cedit=[INT][SQL]

A remote user can also create a specially crafted URL that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the PhotoPost Classifieds software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

Some demonstration exploit URLs are provided:

http://[target]/path/showcat.php?si=[XSS]
http://[target]/path/reportproduct.php?report=[XSS]
http://[target]/path/contact.php?contact=[INT]&productid=[INT][XSS]

The original advisory is available at:

http://www.gulftech.org/?node=research&article_id=00061-01012005

Impact:   A remote user can upload scripting files and then cause the web server to execute them.

A remote user can execute SQL commands on the underlying database.

A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the PhotoPost Classifieds software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

Solution:   The vendor has issued a fixed version (2.02).
Vendor URL:  www.photopost.com/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


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