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Vulnerability Alert

Cisco ISE Support Information Download Authentication Bypass Vulnerability

 
Threat Type:CWE-20: Input Validation
IntelliShield ID:31295
Version:1
First Published:2013 October 23 16:35 GMT
Last Published:2013 October 23 16:35 GMT
Port: Not available
CVE:CVE-2013-5531
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Mild Damage
CVSS Base:5.0 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:4.1
 
 
Version Summary:Cisco ISE contains a vulnerability that could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive information. Updates are available.
 
 
Description
A vulnerability in the implementation of the authentication code that is used to validate requests to download a product support bundle could allow an unauthenticated, remote attacker to download a full product support bundle.

The vulnerability is due to an error in the logic that is used to validate support bundle access requests. An attacker could exploit this vulnerability by sending a crafted request to the vulnerable system. An exploit could allow an attacker to obtain a full copy of the product configuration or other sensitive information including administrative credentials.

Cisco confirmed the vulnerability in a security advisory and released software updates.
 
Warning Indicators
Cisco ISE versions prior to 1.1.1 are affected.
 
IntelliShield Analysis
A successful exploit could allow an attacker to gain access to information in support packages stored on the targeted system. The file contents may include authentication credentials that could allow the attacker to conduct further exploits against the targeted system or other related systems.
 
Vendor Announcements
Cisco has released a security advisory for Cisco bug ID CSCty20405 at the following link: cisco-sa-20131023-ise
 
Impact
An unauthenticated, remote attacker could gain unauthorized access to files on a targeted system.
 
Technical Information
The vulnerability is due to improper authentication checks when accessing files on the affected system.

An unauthenticated, remote attacker could exploit the vulnerability by sending a malicious request to the targeted system. Improper processing by the system could allow the attacker to download files from the system without authorization, possibly resulting in the disclosure of sensitive information.
 
Safeguards
Administrators are advised to apply the appropriate updates.

Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.

Administrators are advised to monitor affected systems.
 
Patches/Software
Cisco customers with active contracts can obtain updates through the Software Center. 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 Identity Services Engine Software 1.0 Base, .4.573 | 1.0 MR 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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