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Vulnerability Alert

Cisco Unified Communications Manager CAPF CSR Arbitrary File Read/Write Vulnerability

 
Threat Type:CWE-20: Input Validation
IntelliShield ID:33045
Version:1
First Published:2014 February 25 22:58 GMT
Last Published:2014 February 25 22:58 GMT
Port: Not available
CVE:CVE-2014-0742
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Harassment
CVSS Base:6.2 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:5.9
 
Version Summary:Cisco Unified Communications Manager contains a vulnerability that could allow a local attacker to read or write arbitrary files to the underlying operating system. Updates are not available.
 
 
Description
A vulnerability in the Certificate Authority Proxy Function (CAPF) command-line function for Certificate Signing Request (CSR) management of Cisco Unified Communications Manager (Cisco Unified CM) could allow an authenticated, local attacker to read or write arbitrary files to the underlying operating system.

The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by entering a crafted command-line entry. An exploit could allow the attacker to read or write arbitrary files on the underlying operating system.

Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.
 
Warning Indicators
At the time this alert was first published, Cisco Unified CM versions 10.0(1) and prior were vulnerable. Later releases of Cisco Unified CM may also be vulnerable.
 
IntelliShield Analysis
To exploit this vulnerability, an attacker would need local access to the targeted device. This access requirement decreases the likelihood of a successful exploit.

Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
 
Vendor Announcements
Cisco has released a security notice at the following link: CVE-2014-0742

Customers are advised to consult Cisco bug ID CSCum95464 for a complete list of affected product versions.
 
Impact
A local attacker could exploit this vulnerability to read or write arbitrary files on the underlying operating system of an affected device. A successful exploit could be used to conduct further attacks.
 
Technical Information
The vulnerability is due to insufficient input validation by an affected device.

A local attacker could exploit this vulnerability by entering a crafted command-line entry. An exploit could allow the attacker to read or write arbitrary files on the underlying operating system, which could be used to conduct further attacks.
 
Safeguards
Administrators are advised to contact the vendor regarding future updates and releases.

Administrators are advised to allow only trusted users to access local systems.

Administrators are advised to monitor affected systems.
 
Patches/Software
Software updates are not available.
 
Alert History
 
Initial Release


Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
CiscoCisco Unified Communications Manager 10.0 Base | 10.0(1) Base

Associated Products:
N/A




Alerts and bulletins on the Cisco Security Intelligence Operations Portal are highlighted by analysts in the Cisco Threat Operations Center and represent a subset of the comprehensive content that is available through Cisco Security IntelliShield Alert Manager Service. This customizable threat and vulnerability alert service provides security staff with access to timely, accurate, and credible information about threats and vulnerabilities that may affect their environment.


LEGAL DISCLAIMER
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.
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