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Seo Panel 2.2.0 Cross Site Scripting

Seo Panel 2.2.0 Cross Site Scripting
Posted Jan 15, 2011
Authored by Mark Stanislav

Seo Panel suffers from a cookie-rendering persistent cross site scripting vulnerability.

tags | exploit, xss
advisories | CVE-2010-4331
SHA-256 | 946d257e463809754be32de45dca92ae5a1e14ead7ac7c8148d4119c0960b2fa

Seo Panel 2.2.0 Cross Site Scripting

Change Mirror Download
'Seo Panel' Cookie-Rendered Persistent XSS Vulnerability (CVE-2010-4331)
Mark Stanislav - mark.stanislav@gmail.com


I. DESCRIPTION
---------------------------------------
A vulnerability exists in 'Seo Panel' page rendering which allows for unfiltered, unencrypted content to be presented to a user through two different cookies.


II. TESTED VERSION
---------------------------------------
2.2.0


III. PoC EXPLOIT
---------------------------------------
Alter the value of cookies called 'default_news' or 'sponsors' and then view a site page which includes controllers/index.ctrl.php or controllers/settings.ctrl.php that will render the cookies as they exist on the user's machine.


IV. NOTES
---------------------------------------
* The 'default_news' cookie doesn't require a user to be authenticated whereas 'sponsors' does
* The disclosure date was pushed a full month so that a fix could be released but no update was released yet
* Based on discussions with the developer, they will likely encrypt the cookie contents to prevent this issue


V. SOLUTION
---------------------------------------
Upgrade to a release > 2.2.0 when available or otherwise disable cookie rendering.


VI. REFERENCES
---------------------------------------
http://www.seopanel.in/
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4331
http://www.uncompiled.com/2011/01/seo-panel-cookie-rendered-persistent-xss-vulnerability-cve-2010-4331/


VII. TIMELINE
---------------------------------------
11/24/2010 - Initial vendor disclosure
11/25/2010 - Vendor response and commitment to fix
11/25/2010 - Reply to vendor detailing potential fixes and an adjusted public disclosure date
11/25/2010 - Vendor response confirming desired public disclosure date and agreement to patch method
01/15/2011 - Public disclosure
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