Cisco Unified Communications Manager contains a vulnerability that could allow a local attacker to view sensitive information. Updates are not available.
A vulnerability in the command-line interface (CLI) of Cisco Unified Communications Manager (CUCM) could allow an authenticated, local attacker to read the contents of arbitrary files.
The vulnerability is due to incomplete input validation. An attacker could exploit this vulnerability by issuing a crafted command on the CLI. An exploit could allow the attacker to read arbitrary files on the local file system.
Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.
At the time this alert was first published, Cisco CUCM version 9.1(1) is vulnerable. Later versions of Cisco CUCM may also be affected.
To exploit this vulnerability, the attacker must have local access to a targeted system. This access restriction limits the possibility of a successful exploit.
Customers are advised to review the bug reports in the "Vendor Announcements" section for a current list of affected versions.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
A local attacker could exploit this vulnerability to view sensitive information on the targeted system, such as the contents of arbitrary files. Successful exploitation could be used to conduct further attacks.
The vulnerability is due to insufficient validation of user-supplied input processed by an affected device.
A local attacker could exploit this vulnerability by issuing a crafted command on the CLI of the targeted device. Processing the crafted command could allow the attacker to read arbitrary files on the local file system. Successful exploitation could be used to conduct further attacks.
Administrators are advised to contact the vendor regarding future updates and releases.
Administrators are advised to allow only privileged users to access administration or management systems.
Administrators are advised to allow only trusted users to access local systems.
Administrators are advised to monitor affected systems.
The security vulnerability applies to the following combinations of products.
Cisco Unified Communications Manager
The urgency and severity ratings of this alert are not tailored to individual users; users may value alerts differently based upon their network configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.