Cisco Identity Services Engine contains a vulnerability that could allow an unauthenticated, remote attacker to conduct cross-site scripting attacks on a targeted system. Updates are available.
A vulnerability in the guest portal of the Cisco Identity Services Engine (ISE) Software could allow an unauthenticated, remote attacker to send a malicious script to an unsuspecting user.
The vulnerability is due to improper input validation. An attacker could exploit this vulnerability by convincing the user of the affected system to follow a malicious link or visit an attacker-controlled website. A successful exploit could allow the attacker to submit arbitrary requests to the affected device via the affected web browser with the privileges of the user.
Cisco PSIRT would like to thank David Robinson of Context Information Security for discovering and reporting several of the cross-site scripting (XSS) vulnerabilities to Cisco.
Cisco has confirmed the vulnerability in a security notice and released software updates.
At the time this alert was first published, Cisco ISE Software versions 1.1 and prior were vulnerable. Later releases of Cisco ISE 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-2012-5744
Customers are advised to consult Cisco bug IDs CSCud11139 and CSCug02904 for the most complete list of affected product versions.
An unauthenticated, remote attacker could exploit this vulnerability to execute arbitrary script code in the user's browser session under the context of the affected site. An exploit could allow the attacker to obtain sensitive information such as authentication cookies or recently submitted data.
The vulnerability is due to insufficient validation of user-supplied input processed by the affected application.
An unauthenticated, remote 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 to execute arbitrary script code in the user's browser session under the context of the affected site.
Administrators are advised to apply the appropriate updates.
Users should verify that unsolicited links are safe to follow.
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 firstname.lastname@example.org 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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