Cisco ASA 5520 WebVPN cross-site scripting
| asa5520-webvpn-xss (49528) |  Medium Risk |
Description:
Cisco ASA 5520 is vulnerable to cross-site scripting in the WebVPN clientless mode feature, caused by improper validation of user-supplied input by the index.html page. A remote attacker could exploit this vulnerability via the Host HTTP header to execute script in a victim's Web browser within the security context of the hosting Web site, allowing the attacker 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:
- BugTraq Mailing List, Tue Mar 31 2009 - 05:17:54 CDT : Cisco ASA5520 Web VPN Host Header XSS.
- Cisco Web site: Cisco ASA 5500 Series Adaptive Security.
- BID-34307: Cisco ASA Appliance WebVPN Cross Site Scripting Vulnerability
- CVE-2009-1220: Cross-site scripting (XSS) vulnerability in +webvpn+/index.html in WebVPN on the Cisco Adaptive Security Appliances (ASA) 5520 with software 7.2(4)30 and earlier 7.2 versions including 7.2(2)22, and 8.0(4)28 and earlier 8.0 versions, when clientless mode is enabled, allows remote attackers to inject arbitrary web script or HTML via the Host HTTP header.
- OSVDB ID: 53147: Cisco ASA5520 WebVPN /+webvpn+/index.html Host HTTP Header XSS
- SECTRACK ID: 1022122: Cisco ASA Input Validation Flaw in Clientless SSL VPN Feature Permits Cross-Site Scripting Attacks
- VUPEN/ADV-2009-1169: Cisco ASA WebVPN Clientless Mode Cross Site Scripting Vulnerability
Platforms Affected:
- Cisco ASA 5520
- Cisco IOS 7.2(2)22
Reported:
Mar 31, 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.