Cisco Web Security Appliance 8.5.0-497 HTTP Header cross site scripting

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco Web Security Appliance 8.5.0-497. The impacted element is an unknown function of the component HTTP Header Handler. Such manipulation leads to cross site scripting. This vulnerability is listed as CVE-2015-4198. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Cisco Web Security Appliance 8.5.0-497 (Anti-Malware Software) and classified as problematic. Affected by this issue is an unknown functionality of the component HTTP Header Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

Cross-site scripting (XSS) vulnerability in the web framework on Cisco Web Security Appliance (WSA) devices with software 8.5.0-497 allows remote attackers to inject arbitrary web script or HTML via an unspecified HTTP header, aka Bug ID CSCuu24409.

The weakness was presented 06/20/2015 as CSCuu24409 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2015-4198 since 06/04/2015. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 03/01/2018). The MITRE ATT&CK project declares the attack technique as T1059.007.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at SecurityFocus (BID 75326†) and SecurityTracker (ID 1032676†). See VDB-76033 for similar entry. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Anti-Malware Software

Vendor

• Cisco

Name

• Web Security Appliance

Version

• 8.5.0-497

License

• commercial

Website

• Vendor: https://www.cisco.com/

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Once again VulDB remains the best source for vulnerability data.

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