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.
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.
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.
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.
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.
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.
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.
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.
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 email@example.com for assistance.
The security vulnerability applies to the following combinations of products.
Cisco Identity Services Engine Software
1.0 Base, .4.573 | 1.0 MR Base | 1.1 Base
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