[seam-issues] [JBoss JIRA] Commented: (JBSEAM-4804) JBoss Seam2 privilege escalation caused by EL interpolation in FacesMessages

JBoss Seam2 privilege escalation caused by EL interpolation in FacesMessages ---------------------------------------------------------------------------- Key: JBSEAM-4804 URL: https://issues.jboss.org/browse/JBSEAM-4804 Project: Seam 2 Issue Type: Bug Components: Security Affects Versions: 2.0.2.SP1, 2.2.1.Final Reporter: Marek Novotny Assignee: Marek Novotny Priority: Blocker Fix For: 2.2.2.Final Seam 2 does not properly block access to EL constructs in page exception handling. This allowed arbitrary Java methods to be executed. A remote attacker could use this flaw to execute arbitrary code via a URL, containing appended, specially-crafted expression language parameters, provided to certain applications based on the JBoss Seam framework. Note: A properly configured and enabled Java Security Manager would prevent exploitation of this flaw. Details are in https://www.redhat.com/security/data/cve/CVE-2011-1484.html Seam team thanks Martin Kouba from IT SYSTEMS a.s. for reporting this issue.