Cisco Enterprise License Manager contains a vulnerability that could allow an authenticated, remote attacker to upload files to arbitrary locations on the filesystem of an affected device. Updates are available.
A vulnerability in the license upload interface of the Cisco Enterprise License Manager (ELM) could allow an authenticated, remote attacker to upload files to arbitrary locations on the filesystem.
The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by manipulating the path provided in the license upload interface. An exploit could allow the attacker to write files in arbitrary locations on the filesystem.
Cisco has confirmed the vulnerability in a security notice and released software updates.
At the time this alert was first published, Cisco Unified Communications Manager versions 9.1(1) and prior were vulnerable. Later releases of Cisco Unified Communications Manager may also be vulnerable.
To exploit this vulnerability, an attacker would need to authenticate to the targeted device, which decreases the likelihood of a successful exploit.
Cisco indicates through the CVSS score that proof-of-concept exploit code exists; however, the code is not known to be publicly available.
Cisco has released a security notice at the following link: CVE-2013-6688
Customers are advised to consult Cisco bug ID CSCui58222 for a complete list of affected product versions.
An authenticated, remote attacker could exploit this vulnerability to upload files to arbitrary locations on an affected device. A successful exploit could be used to conduct further attacks.
The vulnerability is due to insufficient input validation by the affected software.
An authenticated, remote attacker could exploit this vulnerability by manipulating the path provided in the license upload interface. An exploit could allow the attacker to write files in arbitrary locations on the filesystem, which could be used to conduct further attacks.
Administrators are advised to apply the appropriate updates.
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 are advised to monitor affected systems.
Cisco customers with active contracts should contact their Cisco support team for assistance in upgrading to a software version that includes fixes for this vulnerability. Cisco customers without contracts may contact the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via email at firstname.lastname@example.org for assistance.
The security vulnerability applies to the following combinations of products.
Cisco Unified Communications Manager
9.1 Base, .2 | 9.1(1) Base
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.