Description
mod_cluster in JBoss Enterprise Application Platform 5.1.2 for Red Hat Linux allows worker nodes to register with arbitrary virtual hosts, which allows remote attackers to bypass intended access restrictions and provide malicious content, hijack sessions, and steal credentials by registering from an external vhost that does not enforce security constraints.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat JBoss Web Server 1 | mod_cluster +4 | 1.0.10-3.GA_CP02.ep5.el4 | RHSA-2012:0035 |
| Red Hat JBoss Web Server 1 | mod_cluster-native | 1.0.10-4.GA_CP02.ep5.el4 | RHSA-2012:0035 |
| Red Hat JBoss Web Platform 5 | mod_cluster-native | 1.0.10-4.1.GA_CP02.ep5.el5 | RHSA-2012:0039 |
| Red Hat JBoss EAP 5 | mod_cluster-native | 1.0.10-4.GA_CP02.ep5.el4 | RHSA-2012:0037 |
Advisories 3
- RHSA-2012:0039 Red Hat Security Advisory: mod_cluster-native security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2012:0035 Red Hat Security Advisory: mod_cluster-native security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2012:0037 Red Hat Security Advisory: mod_cluster-native security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
References
- RHSA-2012:0039 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=767020
- RHSA-2012:0035 vendor-advisory
- 51554 vdb-entry
- jboss-modcluster-security-bypass(72460) vdb-entry
- RHSA-2012:0040 vendor-advisory
- RHSA-2012:0037 vendor-advisory
- RHSA-2012:0036 vendor-advisory
- 1026545 vdb-entry
- RHSA-2012:0038 vendor-advisory