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Vulnerability Alert

Cisco ISE Captive Portal Application Plaintext Credentials Exposure Vulnerability

 
Threat Type:CWE-200: Information Leak / Disclosure
IntelliShield ID:30524
Version:1
First Published:2013 August 28 15:55 GMT
Last Published:2013 August 28 15:55 GMT
Port: Not available
CVE:CVE-2013-3471
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Mild Damage
CVSS Base:4.3 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:3.6
Related Resources:
View related Security Notice
 
 
Version Summary:Cisco Identity Services Engine contains a vulnerability that could allow an unauthenticated, remote attacker or an authenticated, local attacker to access sensitive information. Updates are available.
 
 
Description
A vulnerability in the captive portal application of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker (or local, authenticated attacker) to potentially gain access to the username and password of an authenticated session.

The vulnerability is due to improper use of hidden HTML form fields. An attacker could exploit this vulnerability by means such as Clickjacking or leveraging known cross-site scripting (XSS) vulnerabilities. A successful exploit could allow the attacker to obtain an authenticated session username and password.

David Robinson of Context Information Security discovered and reported this vulnerability to Cisco PSIRT.

Cisco has confirmed the vulnerability in a security notice and released software updates.
 
Warning Indicators
At the time this alert was first published, Cisco Identity Services Engine Software versions 1.1 and prior were vulnerable. Later releases of Cisco Identity Services Engine Software may also be vulnerable.
 
IntelliShield Analysis
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.
 
Vendor Announcements
Cisco has released a security notice at the following link: CVE-2013-3471

Customers are advised to consult Cisco bug ID CSCug02515 for the most complete list of affected product versions.
 
Impact
An unauthenticated, remote attacker or an authenticated, local could exploit this vulnerability to access sensitive information, such as the username and password of an authenticated session. Successful exploitation could be used to conduct further attacks.
 
Technical Information
The vulnerability is due to insufficient validation of user-supplied input in hidden HTML form fields used by the affected application.

An unauthenticated, remote attacker or an authenticated, local attacker could exploit this vulnerability by convincing a user to follow a crafted URL that contains malicious content. Processing the malicious content could allow the attacker the ability to conduct XSS or clickjacking attacks, which could be used to access sensitive information.
 
Safeguards
Administrators are advised to apply the appropriate updates.

Administrators are advised to allow only trusted users to have network access.

For additional information about XSS attacks and the methods used to exploit these vulnerabilities, see the Cisco Applied Mitigation Bulletin Understanding Cross-Site Scripting (XSS) Threat Vectors

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 Identity Services Engine Software 1.0 Base, .4.573 | 1.0 MR Base | 1.1 Base

Associated Products:
N/A




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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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