Cisco Security Advisory
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AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:U/RC:C
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A vulnerability in Cisco Unified Communications Manager (Unified CM) could allow an authenticated, remote attacker to execute commands on the underlying operating system with the privileges of the database user.
The vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by submitting malicious input to the affected function.
Proof-of-concept code that demonstrates an exploit of this vulnerability is publicly available.
Cisco has confirmed the vulnerability in a security advisory; however, software updates are not available.
To exploit this vulnerability, an attacker requires authenticated access to the targeted system. Authenticated access may require the attacker to access trusted, internal networks. These access requirements could limit the likelihood of a successful exploit.
Cisco Unified CM version 8.0 reached the End of Software Maintenance on October 23, 2012. Customers using Cisco Unified CM 8.0(x) versions should contact their Cisco support team for assistance in upgrading to a supported version of Cisco Unified CM.
Cisco Unified CM is the only product confirmed to be vulnerable. Additional voice products may be affected by one or more of the individual vulnerabilities that are described in the advisory. The following products are being investigated but have not yet been confirmed as vulnerable:
- Cisco Emergency Responder
- Cisco Unified Contact Center Express
- Cisco Unified Customer Voice Portal
- Cisco Unified Presence Server/Cisco IM and Presence Service
- Cisco Unity Connection
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Cisco has released a security advisory for bug ID CSCuh73440 at the following link: cisco-sa-20130717-cucm
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Administrators are advised to contact the vendor regarding future updates and releases.
The Cisco Applied Intelligence team has created the following companion document to guide administrators in identifying and mitigating attempts to exploit this vulnerability prior to applying updated software: Identifying and Mitigating Exploitation of the Multiple Vulnerabilities in Cisco Unified Communications Manager
Administrators are advised to allow only trusted users to access local systems.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to allow only privileged users to access administration or management systems.
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 2013-Jul-17
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