zKup modifier.php authentication bypass

zkup-modifier-authentication-bypass (41068)

Medium Risk

Description:

zKup could allow a remote attacker to bypass security restrictions, caused by a vulnerability in the authentication process. A remote attacker could send a specially-crafted POST request to the modifier.php script to add users with administrator privileges and gain unauthorized access to the application.

*CVSS:

Base Score:	6.4
Access Vector:	Network
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	None
Temporal Score:	5.3
Exploitability:	Functional
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Bypass Security

Remedy:

Upgrade to the latest version of zKup (2.04 or later), available from the zKup Web site. See References.

References:

• BID-28149: zKup Authentication Bypass Vulnerability
• CVE-2008-7124: zKup CMS 2.0 through 2.3 does not require administrative authentication for admin/configuration/modifier.php, which allows remote attackers to gain administrator privileges via a direct request, as demonstrated by adding a new administrator.
• SA29276: zKup PHP Code Execution and Security Bypass

Platforms Affected:

• Zkup Zkup 2.0
• Zkup Zkup 2.01
• Zkup Zkup 2.02
• Zkup Zkup 2.03

Reported:

Mar 07, 2008

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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.

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.