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Vulnerability Alert

Cisco Adaptive Security Appliance ASDM Privilege Escalation Vulnerability

 
Threat Type:CWE-264: Permissions, Privileges, and Access Control
IntelliShield ID:33622
Version:1
First Published:2014 April 09 16:25 GMT
Last Published:2014 April 09 16:25 GMT
Port: Not available
CVE:CVE-2014-2126
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Moderate Damage
CVSS Base:8.5 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:7.0
Related Resources:
View related Security Advisory
 
 
Version Summary:Cisco Adaptive Security Appliance Software contains a vulnerability that could allow an authenticated, remote attacker to gain elevated privileges. Updates are available.
 
 
Description
A vulnerability in code that handles privilege assignment when the Cisco ASA device is accessed using the Cisco ASDM could allow an authenticated, remote attacker to elevate privileges and gain administrative access to the affected system.

The vulnerability is due to improper privilege assignment to users with privilege level 0. An attacker could exploit this vulnerability by logging in to the Cisco ASDM with user credentials with privilege level 0. An exploit could allow the attacker or an unprivileged user to elevate the access privileges and gain administrative access to the affected system.

Cisco has confirmed the vulnerability in a security advisory and released software updates.
 
Warning Indicators
The following Cisco ASA Software versions are affected:
  • Cisco ASA Software versions prior to 8.2(5.47)
  • Cisco ASA Software versions prior to 8.4(7.5)
  • Cisco ASA Software versions prior to 8.7(1.11)
  • Cisco ASA Software versions prior to 9.0(3.10)
  • Cisco ASA Software versions prior to 9.1(3.4)
 
IntelliShield Analysis
To exploit this vulnerability, an attacker must first authenticate to the targeted device via the Cisco ASDM. 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 advisory for Cisco bug ID CSCuj33496 at the following link: cisco-sa-20140409-asa
 
Impact
An authenticated, remote attacker could exploit this vulnerability to gain elevated privileges and administrative access to an affected device. A successful exploit could result in a complete system compromise.
 
Technical Information
The vulnerability is due to an improper privilege assignment to a user with privilege level 0.

An attacker could exploit this vulnerability by logging in to the Cisco ASDM with user credential with privilege 0. If successful, the attacker could have the ability to escalate the access privileges and gain administrative access to the affected system, which could result in a complete system compromise.
 
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 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 Adaptive Security Appliance (ASA) Software 8.2 .0.45, .1, .1.11, .2, .2.9, .2.10, .2.12, .2.16, .2.17, .3, .4, .4.1, .4.4, .5, .5.13, .5.22, .5.26, .5.33, .5.40, .5.41, .5.46 | 8.4 .1, .1.3, .1.11, .2, .2.1, .2.8, .3, .3.8, .3.9, .4, .4.1, .4.3, .4.5, .4.9, .5, .5.6, .6, .7, .7.3 | 8.7 .1, .1.1, .1.3, .1.4, .1.7, .1.8 | 9.0 .1, .2, .2.10, .3, .3.6, .3.8 | 9.1 .1, .1.4, .2, .2.8, .3, .3.2

Associated Products:
N/A




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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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