15 September 2011

RedHat jakarta: Increased privileges

(15/09/2011) ESB-2011.0943 - [RedHat] jakarta-commons-daemon-jsvc: Increased privileges - Existing account

AUSCERT External Security Bulletin Redistribution

Important: jakarta-commons-daemon-jsvc security update
15 September 2011


AusCERT Security Bulletin Summary

Product: jakarta-commons-daemon-jsvc
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux AS/ES/WS 4
Red Hat Enterprise Linux Desktop 4
Impact/Access: Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2011-2729

Reference: ASB-2011.0064.2

Original Bulletin:

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Hash: SHA1

Red Hat Security Advisory

Synopsis: Important: jakarta-commons-daemon-jsvc security update
Advisory ID: RHSA-2011:1291-01
Product: JBoss Enterprise Web Server
Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-1291.html
Issue date: 2011-09-14
CVE Names: CVE-2011-2729

1. Summary:

A jsvc update for JBoss Enterprise Web Server 1.0.2 on Red Hat Enterprise
Linux 4 that fixes one security issue is now available from the Red Hat
Customer Portal.

The Red Hat Security Response Team has rated this update as having
important security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from the
CVE link in the References section.

2. Description:

jsvc is a service wrapper that allows Java applications to be run as

It was found that jsvc did not correctly drop capabilities after starting
an application. If an administrator used jsvc to run an application, and
also used the "-user" option to specify a user for it to run as, the
application correctly ran as that user but did not drop its increased
capabilities, allowing it access to all files and directories accessible to
the root user. (CVE-2011-2729)

Note: This flaw only affected users running JBoss Enterprise Web Server
1.0.2 from jboss-ews-1.0.2-RHEL4-[arch].zip as provided from the Red Hat
Customer Portal, as versions for other products are not built with
capabilities support.

All users running JBoss Enterprise Web Server 1.0.2 as provided from the
Red Hat Customer Portal on Red Hat Enterprise Linux 4 are advised to apply
this update.

3. Solution:

The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, backup your
existing JBoss Enterprise Web Server installation (including all
applications and configuration files). After applying the update, if jsvc
is started, it must be restarted for this update to take effect.

4. Bugs fixed (http://bugzilla.redhat.com/):

730400 - CVE-2011-2729 jakarta-commons-daemon: jsvc does not drop capabilities allowing access to files and directories owned by the superuser

5. References:


6. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2011 Red Hat, Inc.
Version: GnuPG v1.4.4 (GNU/Linux)


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