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Vulnerability Alert

Cisco Open Network Environment Platform Unvalidated Pointer Vulnerability

 
Threat Type:CWE-20: Input Validation
IntelliShield ID:30795
Version:1
First Published:2013 September 13 20:06 GMT
Last Published:2013 September 13 20:06 GMT
Port: Not available
CVE:CVE-2013-5496
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Mild Damage
CVSS Base:6.3 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:5.2
 
Version Summary:Cisco Open Network Environment Platform contains a vulnerability that could allow an authenticated, remote attacker to cause a denial of service condition. Updates are available.
 
 
Description
A vulnerability in the Open Network Environment Platform (ONEP) could allow an authenticated, remote attacker to cause the network element to reload.

The vulnerability is due to insufficient pointer validation. An attacker could exploit this vulnerability by sending a crafted packet to an ONEP enabled network element. An exploit could allow the attacker to cause the network element to reload.

Cisco has confirmed the vulnerability in a security notice and released software updates.
 
Warning Indicators
At the time this alert was first published, Cisco NX-OS Software for Nexus 3000 Series versions 6.0(2)U1(2) and prior were vulnerable. Later releases of Cisco NX-OS Software for Nexus 3000 Series may also be vulnerable.
 
IntelliShield Analysis
To exploit this vulnerability, the attacker would need to authenticate and send crafted packets to the targeted system, which may reside on trusted, internal networks. These access requirements reduce 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-2013-5496

Customers are advised to consult Cisco bug ID CSCui51551 for the most complete list of affected product versions.
 
Impact
An authenticated, remote attacker could exploit this vulnerability to cause the network element to reload on an affected device, resulting in a denial of service (DoS) condition.
 
Technical Information
The vulnerability is due to insufficient pointer validation by the ONEP used by affected devices.

An authenticated, remote attacker could exploit this vulnerability by sending a crafted packet to an ONEP enabled network element on an affected device.  Successful exploitation could cause the network element to reload, resulting in a DoS condition.
 
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.

Administrators are advised to monitor affected systems.
 
Patches/Software
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 tac@cisco.com for assistance.
 
Alert History
 
Initial Release


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

Primary Products:
CiscoCisco NX-OS Software for Nexus 3000 Series 6.0(2)U1(1), 6.0(2)U1(2)

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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