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U-217: Red Hat Certificate System Bugs Let Remote Users Conduct Cross-Site Scripting and Denial of Service Attacks

July 20, 2012 - 7:00am

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PROBLEM:

Red Hat Certificate System Bugs Let Remote Users Conduct Cross-Site Scripting and Denial of Service Attacks

PLATFORM:

Red Hat Certificate System v8

ABSTRACT:

Two vulnerabilities were reported in Red Hat Certificate System. A remote user can conduct cross-site scripting attacks. A remote authenticated user can revoke the CA certificate.

referenceĀ  LINKS:

Advisory: RHSA-2012:1103-1
SecurityTracker Alert ID: 1027284
CVE-2012-2662
CVE-2012-3367

IMPACT ASSESSMENT:

Medium

Discussion:

The Agent and End Entity pages do not properly filter HTML code from user-supplied input before displaying the input [CVE-2012-2662]. A remote user can cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the Red Hat Certificate System software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

The Certificate Manager web interface does not properly check certificate revocation requests [CVE-2012-3367]. A remote authenticated agent with permissions to perform revocations of end entity certificates can revoke the Certificate Authority (CA) certificate.

Impact:

A remote authenticated user can revoke the CA certificate.

A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Red Hat Certificate System software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

Solution:

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258

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