Cisco Security Advisory
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AV:N/AC:M/Au:N/C:N/I:P/A:N/E:H/RL:OF/RC:C
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A vulnerability in the portal of the Cisco Secure Access Control System (ACS) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the portal on the affected system.
The vulnerability is due to insufficient input validation of a parameter. An attacker could exploit this vulnerability by convincing a user to access a malicious link.
Cisco has confirmed the vulnerability in a security notice and released software updates.
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.
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Customers are advised to consult Cisco bug ID CSCue65949 for the most complete list of affected product versions.
Vulnerable Products
At the time this alert was first published, Cisco Secure ACS versions 5.4.0.46.3 and prior were vulnerable. Later releases of Cisco Secure ACS may also be vulnerable.Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by these vulnerabilities.
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Administrators are advised to apply the appropriate updates.
Users are advised not to open email messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in email messages are safe, they are advised not to open them.
Administrators are advised to allow only trusted users to have network access.
For additional information about XSS attacks and the methods used to exploit these vulnerabilities, see the Cisco Applied Mitigation Bulletin Understanding Cross-Site Scripting (XSS) Threat Vectors.
Administrators are advised to monitor affected systems.
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Cisco customers with active contracts should contact their Cisco support team for assistance in upgrading to a software version that includes fixes for this vulnerability. Cisco customers without contracts may contact the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via email at tac@cisco.com for assistance.
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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 Release NA Final 2014-Jan-21
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