CityPost PHP LNKX Input Validation Hole Permits Cross-Site Scripting Attacks
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SecurityTracker Alert ID: 1013752 |
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SecurityTracker URL: http://securitytracker.com/id/1013752
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CVE Reference:
GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Apr 18 2005
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Impact:
Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
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Exploit Included: Yes
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Version(s): 52
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Description:
sNKenjoi reported an input validation vulnerability in CityPost's PHP LNKX. A remote user can conduct cross-site scripting attacks.
The 'message.php' script does not properly validate user-supplied input in the 'msg' parameter. A remote user can 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 PHP LNKX 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.
A demonstration exploit URL is provided:
http://[target]/lnkx/message.php?msg=[XSS]
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Impact:
A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the PHP LNKX 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.
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Solution:
No solution was available at the time of this entry.
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Vendor URL: tech.citypost.ca/link-exchange-52.php (Links to External Site)
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Cause:
Input validation error
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Underlying OS: Linux (Any), UNIX (Any), Windows (Any)
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Message History:
None.
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Source Message Contents
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Subject: sNKenjoi's Security Advisory: XSS Vunerabilities in Multiple CityPost Software
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sNKenjoi's Security Advisory: XSS Vunerabilities in Multiple CityPost Software
Security Advisory: XSS Vunerabilities in Multiple CityPost Software
Severity: Medium
Title: XSS Vunerabilities in Simple PHP Upload, Simple Image Editor
and Automated Link Exchange
Vendor: Allen Kim
Vendor Website: http://tech.citypost.ca/
Proof of Concept Exploits:
Simple PHP Upload - XSS
http://localhost/simple-upload-53.php?message=[XSS]
Simple Image Editor - XSS's in 5 seperate places
http://localhost/image-editor-52/?m1=[XSS]&m2=[XSS]&m3=[XSS]&imgsrc=[XSS]&m4=[XSS]
Automated Link Exchange - XSS
http://localhost/lnkx/message.php?msg=[XSS]
snkenjoi.com & zone-h.org
snkenjoi@gmail.com
-- snkenjoi.com
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