RHEL 5 / 6 : JBoss Web Server (RHSA-2012:0542)

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Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

Updated httpd packages that fix multiple security issues and one bug
are now available for JBoss Enterprise Web Server 1.0.2 for Red Hat
Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having
moderate security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.

The Apache HTTP Server ('httpd') is the namesake project of The Apache
Software Foundation.

It was discovered that the Apache HTTP Server did not properly
validate the request URI for proxied requests. In certain
configurations, if a reverse proxy used the ProxyPassMatch directive,
or if it used the RewriteRule directive with the proxy flag, a remote
attacker could make the proxy connect to an arbitrary server, possibly
disclosing sensitive information from internal web servers not
directly accessible to the attacker. (CVE-2011-3368)

It was discovered that mod_proxy_ajp incorrectly returned an 'Internal
Server Error' response when processing certain malformed HTTP
requests, which caused the back-end server to be marked as failed in
configurations where mod_proxy was used in load balancer mode. A
remote attacker could cause mod_proxy to not send requests to back-end
AJP (Apache JServ Protocol) servers for the retry timeout period or
until all back-end servers were marked as failed. (CVE-2011-3348)

The httpd server included the full HTTP header line in the default
error page generated when receiving an excessively long or malformed
header. Malicious JavaScript running in the server's domain context
could use this flaw to gain access to httpOnly cookies.
(CVE-2012-0053)

An integer overflow flaw, leading to a heap-based buffer overflow, was
found in the way httpd performed substitutions in regular expressions.
An attacker able to set certain httpd settings, such as a user
permitted to override the httpd configuration for a specific directory
using a '.htaccess' file, could use this flaw to crash the httpd child
process or, possibly, execute arbitrary code with the privileges of
the 'apache' user. (CVE-2011-3607)

A NULL pointer dereference flaw was found in the httpd mod_log_config
module. In configurations where cookie logging is enabled, a remote
attacker could use this flaw to crash the httpd child process via an
HTTP request with a malformed Cookie header. (CVE-2012-0021)

A flaw was found in the way httpd handled child process status
information. A malicious program running with httpd child process
privileges (such as a PHP or CGI script) could use this flaw to cause
the parent httpd process to crash during httpd service shutdown.
(CVE-2012-0031)

Red Hat would like to thank Context Information Security for reporting
the CVE-2011-3368 issue.

This update also fixes the following bug :

* The fix for CVE-2011-3192 provided by the RHSA-2011:1329 update
introduced a regression in the way httpd handled certain Range HTTP
header values. This update corrects this regression. (BZ#749071)

All users of JBoss Enterprise Web Server 1.0.2 should upgrade to these
updated packages, which contain backported patches to correct these
issues. After installing the updated packages, users must restart the
httpd service for the update to take effect.

See also :

https://rhn.redhat.com/errata/RHSA-2011-1329.html
https://access.redhat.com/errata/RHSA-2012:0542.html
https://www.redhat.com/security/data/cve/CVE-2011-3368.html
https://www.redhat.com/security/data/cve/CVE-2011-3348.html
https://www.redhat.com/security/data/cve/CVE-2011-3607.html
https://www.redhat.com/security/data/cve/CVE-2012-0053.html
https://www.redhat.com/security/data/cve/CVE-2012-0031.html
https://www.redhat.com/security/data/cve/CVE-2012-0021.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N)
CVSS Temporal Score : 4.3
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Red Hat Local Security Checks

Nessus Plugin ID: 78923 ()

Bugtraq ID: 49616
49957
50494
51407
51705
51706

CVE ID: CVE-2011-3348
CVE-2011-3368
CVE-2011-3607
CVE-2012-0021
CVE-2012-0031
CVE-2012-0053

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