Cisco Security Advisory
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AV:N/AC:M/Au:N/C:N/I:P/A:N/E:F/RL:U/RC:C
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A vulnerability in the Cisco Host Scan package could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of a Cisco Adaptive Security Appliance (ASA) Web VPN deployment.
The vulnerability is due to insufficient input validation of a user-supplied value. An attacker could exploit this vulnerability by persuading a user to click a specific link.
For additional information about cross-site scripting attacks and the methods used to exploit these vulnerabilities, see the following resources:
- Cisco Applied Mitigation Bulletin: Understanding Cross-Site Scripting (XSS) Threat Vectors
- OWASP reference page: Cross-Site Scripting_(XSS)
This advisory is available at the following link:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-chs
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There are no workarounds that address this vulnerability.
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Cisco provides information about fixed software in Cisco bugs, which are accessible through the Cisco Bug Search Tool.
When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page, to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
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The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
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To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
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Show LessVersion Description Section Status Date 1.0 Initial public release. — Final 2016-October-05
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