WebSphere Application Server logoutExitPage parameter security bypass

was-logoutexitpage-security-bypass (68570)

Medium Risk

Description:

WebSphere Application Server could allow a remote attacker to bypass security restrictions, caused by improper validation by the logoutExitPage parameter. A remote attacker could exploit this vulnerability to redirect to a domain that should be blocked.

*CVSS:

Base Score:	4.3
Access Vector:	Network
Access Complexity:	Medium
Authentication:	None
Confidentiality Impact:	None
Integrity Impact:	Partial
Availability Impact:	None
Temporal Score:	3.2
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Bypass Security

Remedy:

For WebSphere Application Server 6.1:
Apply the latest Fix Pack (6.1.0.39 or later) or APAR PM35701. See References.

For WebSphere Application Server 7.0:
Apply the latest Fix Pack (7.0.0.19 or later) or APAR PM35701. See References.

References:

• IBM APAR PM35701: SHIP APAR FIXES FOR H28W610 FIX PACK 6.1.0.39..
• BID-48710: IBM WebSphere Application Server 'logoutExitPage' Parameter Security Bypass Vulnerability
• CVE-2011-1355: Open redirect vulnerability in IBM WebSphere Application Server (WAS) 6.1 before 6.1.0.39 and 7.0 before 7.0.0.19 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via the logoutExitPage parameter.
• OSVDB ID: 73903: IBM WebSphere Application Server logoutExitPage Parameter Arbitrary Site Redirect
• SA45300: IBM WebSphere Application Server for z/OS "logoutExitPage" Redirection Weakness

Platforms Affected:

• IBM WebSphere Application Server 6.1
• IBM WebSphere Application Server 7.0

Reported:

Jul 18, 2011

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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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