IBM WebSphere Application Server single sign-on (SSO) with SPNEGO security bypass
| was-sso-security-bypass (52079) |  Medium Risk |
Description:
IBM WebSphere Application Server could allow a remote attacker to bypass security restrictions, caused by an error in the Single Sign-on (SSO) with SPNEGO implementation. By setting the WebContainer custom property com.ibm.ws.webcontainer.invokefilterscompatibility to true, an attacker could exploit this vulnerability to bypass SSO authentication on secure URLs.IBM3
*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 (6.1.0.25 or later) or APAR PK77465. See References.
For WebSphere Application Server 7.0:
Apply the latest Fix Pack (7.0.0.5 or later) or APAR PK77465. See References.
References:
- IBM APAR PK77465: setting disablesecuritypreinvokeonfilters causes a security exposure.
- BID-36158: IBM WebSphere Application Server Single Sign On Security Bypass Vulnerability
- CVE-2009-2088: The Servlet Engine/Web Container component in IBM WebSphere Application Server (WAS) 6.1 before 6.1.0.25 and 7.0 before 7.0.0.5, when SPNEGO Single Sign-on (SSO) and disableSecurityPreInvokeOnFilters are configured, allows remote attackers to bypass authentication via a request for a secure URL
Platforms Affected:
- IBM WebSphere Application Server 6.1
- IBM WebSphere Application Server 7.0
Reported:
Jul 27, 2009
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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.