Ultimate PHP Board User-Agent header cross-site scripting

ultimatephpboard-useragent-xss (47607)

Medium Risk

Description:

Ultimate PHP Board is vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote attacker could exploit this vulnerability using the User-Agent header to inject malicious script into a Web page which would be executed in a victim's Web browser within the security context of the hosting Web site, once the address logs are viewed. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.

*CVSS:

Base Score:	4.3
Access Vector:	Network
Access Complexity:	Medium
Authentication:	None
Confidentiality Impact:	None
Integrity Impact:	Partial
Availability Impact:	None
Temporal Score:	4.1
Exploitability:	High
Remediation Level:	Unavailable
Report Confidence:	Uncorroborated

Consequences:

Gain Access

Remedy:

No remedy available as of May 1, 2013.

References:

• MyUPB Web site: MyUPB news.
• BID-33029: Ultimate PHP Board Request Logging HTML Injection Vulnerability
• CVE-2008-6727: Cross-site scripting (XSS) vulnerability in Ultimate PHP Board (UPB) 2.2.2, 2.2.1, and earlier 2.x versions allows remote attackers to inject arbitrary web script or HTML via the User-Agent HTTP header.
• OSVDB ID: 51011: Ultimate PHP Board (UPB) User-Agent Header XSS
• SA33329: Ultimate PHP Board "User-Agent" Script Insertion

Platforms Affected:

• X-Crew Ultimate PHP Board 1.0
• X-Crew Ultimate PHP Board 1.0 Beta
• X-Crew Ultimate PHP Board 1.0 final beta
• X-Crew Ultimate PHP Board 1.8
• X-Crew Ultimate PHP Board 1.8.2
• X-Crew Ultimate PHP Board 1.9
• X-Crew Ultimate PHP Board 1.9.6
• X-Crew Ultimate PHP Board 2.0 beta 1
• X-Crew Ultimate PHP Board 2.0
• X-Crew Ultimate PHP Board 2.2.1

Reported:

Dec 29, 2008

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* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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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IBM Internet Security Systems is a trusted security advisor to thousands of the world's leading businesses and governments, helping to provide pre-emptive protection for networks, desktops and servers. The IBM Proventia? integrated security platform is designed to automatically protect against both known and unknown threats, helping to keep networks up and running and shield customers from online attacks before they impact business assets. IBM Internet Security Systems products and services are based on the proactive security intelligence of its X-Force? research and development team ? an unequivocal world authority in vulnerability and threat research. The IBM Internet Security Systems product line is also complemented by comprehensive Managed Security Services and Professional Security Services. For more information, visit the IBM Internet Security Systems Web site at www.iss.net or call 800-776-2362.