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CVE-2012-4546

Status Candidate

Overview

The default configuration for IPA servers in Red Hat Enterprise Linux 6, when revoking a certificate from an Identity Management replica, does not properly update another Identity Management replica, which causes inconsistent Certificate Revocation Lists (CRLs) to be used and might allow remote attackers to bypass intended access restrictions via a revoked certificate.

Related Files

Red Hat Security Advisory 2013-0528-02
Posted Feb 21, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0528-02 - Red Hat Identity Management is a centralized authentication, identity management and authorization solution for both traditional and cloud-based enterprise environments. It integrates components of the Red Hat Directory Server, MIT Kerberos, Red Hat Certificate System, NTP, and DNS. It provides web browser and command-line interfaces. Its administration tools allow an administrator to quickly install, set up, and administer a group of domain controllers to meet the authentication and identity management requirements of large-scale Linux and UNIX deployments. It was found that the current default configuration of IPA servers did not publish correct CRLs. The default configuration specifies that every replica is to generate its own CRL; however, this can result in inconsistencies in the CRL contents provided to clients from different Identity Management replicas. More specifically, if a certificate is revoked on one Identity Management replica, it will not show up on another Identity Management replica.

tags | advisory, web
systems | linux, redhat, unix
advisories | CVE-2012-4546
SHA-256 | 45016e5ee1f76f0230ab979a2d9d985ccfd287ab8df26c332f25591bf1c6bb45
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