Vulnerability Alert

Cisco Prime Data Center Network Manager XML External Entity Injection Vulnerability

 
Threat Type:CWE-200: Information Leak / Disclosure
IntelliShield ID:30758
Version:1
First Published:2013 September 18 16:14 GMT
Last Published:2013 September 18 16:14 GMT
Port: Not available
CVE:CVE-2013-5490
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Moderate Damage
CVSS Base:7.8 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:6.8
 
Version Summary:Cisco Prime Data Center Network Manager contains a vulnerability that could allow an unauthenticated, remote attacker to gain root access to sensitive information. Updates are available.
 
 
Description
The Cisco Prime Data Center Network Manager (DCNM) is affected by a vulnerability that could allow an unauthenticated remote attacker to access arbitrary text files on the underlying operating system with the privilege of root using an XML External Entity Injection attack.

Cisco has confirmed the vulnerability in a security advisory and has released software updates.
 
Warning Indicators
Cisco Prime DCNM versions prior to 6.2(3) are affected.
 
IntelliShield Analysis
To exploit this vulnerability, an attacker must conduct an XML external entity injection attack on the targeted device. In a typical enterprise environment, these devices would reside on trusted, internal networks behind firewalls and other security devices. These access restrictions limit the likelihood of a successful exploit.
 
Vendor Announcements
Cisco has released a security advisory for bug ID CSCud80148 at the following link: cisco-sa-20130918-dcnm
 
Impact
An unauthenticated, remote attacker could exploit this vulnerability to access arbitrary files on the underlying database with root privileges. Successful exploitation could be used to conduct further attacks.
 
Technical Information
The vulnerability is due to insufficient validation of user-supplied input processed by the affected software.

An unauthenticated, remote attacker could exploit this vulnerability by conducting an XML external entity injection attack against a targeted device. If processing the incoming requests is successful, XML external entity references and injected tags could allow the attacker to access sensitive information with root privileges. The attacker could use the root privileges to access arbitrary text files to conduct further attacks.
 
Safeguards
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.

The Cisco Applied Intelligence team has created the following companion document to guide administrators in identifying and mitigating attempts to exploit this issue prior to applying updated software: Identifying and Mitigating Exploitation of the Multiple Vulnerabilities in Cisco Prime Data Center Network Manager

Administrators are advised to monitor affected systems.
 
Patches/Software
Cisco customers with active contracts can obtain updates through the Software Center at the following link: Cisco. Cisco customers without contracts can obtain upgrades by contacting the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via email at tac@cisco.com.
 
Alert History
 
Initial Release


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

Primary Products:
CiscoCisco Prime Data Center Network Manager (DCNM) 4.1 .(2), .(3), .(4), .(5) | 4.2 .(1), .(3) | 5.0 (2), (3) | 5.1 (1), (2), (3u) | 5.2 (1), (2), (2a), (2b), (2c), (2e)

Associated Products:
N/A




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