Cisco Security Advisory
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AV:N/AC:L/Au:N/C:P/I:N/A:N/E:F/RL:U/RC:C
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A vulnerability in the Dialed Number Analyzer (DNA) of Cisco Unified Communications Manager could allow an unauthenticated, remote attacker to perform a cross-site scripting (XSS) attack against the user of a web interface.
The vulnerability is due to insufficient input validation of a parameter in the viewfilecontents.do page. An attacker could exploit this vulnerability by persuading a user to access a malicious link.
Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.
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.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
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Customers are advised to consult Cisco bug ID CSCup76308 for a complete list of affected product versions.
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Administrators are advised to contact the vendor regarding future updates and releases.
Users are advised not to visit websites or follow links that have suspicious characteristics or cannot be verified as safe.
For additional information about cross-site scripting attacks and the methods used to exploit these vulnerabilities, see the Cisco Applied Mitigation Bulletin Understanding Cross-Site Scripting (XSS) Threat Vectors.
Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators are advised to monitor affected systems.
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Software updates are not available.
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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-Jul-10
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