Ajax Chat userid parameter cross-site scripting

ajaxchat-userid-xss (28086)

Medium Risk

Description:

Ajax Chat is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the visitor/livesupport/chat.php. A remote attacker could exploit this vulnerability using the 'userid' parameter to execute script in a victim's Web browser within the security context of the hosting Web site, allowing the attacker to steal the victim's cookie-based authentication credentials.

*CVSS:

Base Score:	2.8
Access Vector:	Remote
Access Complexity:	High
Authentication:	Not Required
Confidentiality Impact:	Partial
Integrity Impact:	None
Availability Impact:	None
Temporal Score:	2.4
Exploitability:	High
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Ajax Chat (0.8.1.2 or later), available from the Ajax Chat Web site. See References.

References:

• HotScripts.com Web site: Ajax Chat.
• BID-19238: AJAX Chat Multiple Remote Vulnerabilities
• CVE-2006-3971: Cross-site scripting (XSS) vulnerability in visitor/livesupport/chat.php in Scott Weedon Ajax Chat, possibly 0.1, allows remote attackers to inject arbitrary web script or HTML via the userid parameter.
• OSVDB ID: 27643: Ajax Chat chat.php userid Variable XSS
• SA21286: Ajax Chat Cross-Site Scripting and Information Disclosure
• VUPEN/ADV-2006-3064: Ajax Chat chatid and userid Parameters Cross Site Scripting and Information Disclosure

Platforms Affected:

• HotScripts.com Ajax Chat 0.1

Reported:

Jul 31, 2006

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For corrections or additions please email xforce@iss.net

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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