Cisco Security Advisory
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AV:N/AC:M/Au:N/C:N/I:P/A:N/E:H/RL:U/RC:C
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A vulnerability in the User WebDialer page of Cisco Unified Communications Manager (Unified CM) could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack.
The vulnerability is due to insufficient CSRF protections. An attacker could exploit this vulnerability by convincing the user of the affected system to follow a malicious link or visit an attacker-controlled website. A successful exploit could allow the attacker to dial calls on behalf of the affected user.
Cisco has confirmed this vulnerability in a security notice; however, software updates are not available.
To exploit the vulnerability, the attacker may provide a link to a malicious site and persuade the user to follow the link by using misleading language and instructions.
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Customers should refer to Cisco bug ID CSCui13028 for the most 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 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.
For additional information about cross-site request forgery attacks and potential mitigation methods, see the Cisco Applied Mitigation Bulletin Understanding Cross-Site Request Forgery Threat Vectors.
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 2013-Aug-02
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