Chipmunk CMS reguser.php security bypass

chipmunkcms-reguser-security-bypass (46259)

Medium Risk

Description:

Chipmunk CMS could allow a remote attacker to bypass security restrictions. All users without admin privileges are granted access to the reguser.php script. By sending a specially-crafted POST request, a remote attacker could exploit this vulnerability to bypass security restrictions and add new administrative users to the application.

*CVSS:

Base Score:	7.5
Access Vector:	Network
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial
Temporal Score:	6.4
Exploitability:	Proof-of-Concept
Remediation Level:	Unavailable
Report Confidence:	Uncorroborated

Consequences:

Bypass Security

Remedy:

No remedy available as of May 1, 2013.

References:

• Chipmunk Scripts Web site: Chipmunk CMS.
• CVE-2008-4921: board/admin/reguser.php in Chipmunk CMS 1.3 allows remote attackers to bypass authentication and gain administrator privileges via a direct request. NOTE: some of these details are obtained from third party information.
• OSVDB ID: 49494: Chipmunk CMS board/admin/reguser.php POST Request Handling Admin Authentication Bypass
• SA32476: Chipmunk CMS "reguser.php" Security Bypass Vulnerability

Platforms Affected:

• Chipmunk CMS Chipmunk CMS 1.3

Reported:

Oct 31, 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.

About IBM Internet Security Systems

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.