Cisco Security Advisory
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AV:L/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:U/RC:C
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A vulnerability in Cisco Unified Communications Manager (Unified CM) could allow an authenticated, local attacker to escalate privileges on the system.
The vulnerability is due to improper file permissions on a privileged system binary. An attacker could exploit this vulnerability by modifying a system script, which could allow the attacker to gain complete control of the affected system.
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 needs to authenticate to a targeted device. Authenticated access may require the attacker to access trusted, internal networks. These access requirements could limit the likelihood of a successful exploit.
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Cisco has released a security advisory for bug ID CSCui02242 at the following link: cisco-sa-20130717-cucm
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Administrators are advised to contact the vendor regarding future updates and releases.
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.
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 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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