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

[Jozef Hartinger (JIRA)]

    [ https://issues.jboss.org/browse/JBSEAM-4804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12597644#comment-12597644 ] 

Jozef Hartinger commented on JBSEAM-4804:
-----------------------------------------

Verified on Seam 2.2.2.Final

> 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.

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