Operating System:

[Solaris]

Published:

03 September 2009

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                        ESB-2009.0064 -- [Solaris]
  Security vulnerability in Solaris Related to the Apache 1.3 mod_perl(3)
     Module Component "PerlRun.pm" may Lead to Denial of Service (DoS)
                             3 September 2009

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              mod_perl
Publisher:            Sun Microsystems
Operating System:     Solaris
Impact:               Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2007-1349

Ref:                  ESB-2007.0417

Original Bulletin:    
  http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-248386-1

Revision History:     September 3 2009: Patches released for Solaris 8
                      July 14 2009:     Updated Contributing Factors and 
                                        Resolution sections
                      January 16 2009:  Initial Release

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Solution Type: Sun Alert

Solution  248386 :   Security vulnerability in Solaris Related to the
Apache 1.3 mod_perl(3) Module Component "PerlRun.pm" may Lead to Denial 
of Service (DoS)  
        
Bug ID: 6738158

Product:
Solaris 8 Operating System
Solaris 9 Operating System
Solaris 10 Operating System

Date of Workaround Release: 14-Jan-2009

Date of Resolved Release: 24-Aug-2009

SA Document Body
Security vulnerability in Solaris related to the Apache 1.3 mod_perl(3) 
module component "PerlRun.pm" may lead to Denial of Service (DoS):


1. Impact
A security vulnerability in Solaris related to the Apache HTTP server
may affect the Apache 1.3 web server bundled with Solaris 8, 9 and 10
. The vulnerability, a Denial of Service(DoS) in the "RunPerl.pm"
component of the mod_perl(3) Apache server module, may allow a remote
unprivileged user to cause a Denial of Service to the Apache "httpd"
process.
Additional information regarding this issue is available at:
  * CVE-2007-1349 at:
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1349

2. Contributing Factors
This issue can occur in the following releases:
SPARC Platform
  * Solaris 8 without patch 116973-08
  * Solaris 9 without patch 113146-12
  * Solaris 10 without patch 122911-14
  * OpenSolaris based upon builds snv_01 through snv_99

x86 Platform
  * Solaris 8 without patch 116974-08
  * Solaris 9 without patch 114145-11
  * Solaris 10 without patch 122912-14
  * OpenSolaris based upon builds snv_01 through snv_99

Note 1: OpenSolaris distributions may include additional bug fixes
above and beyond the build from which it was derived.  To determine
the base build of OpenSolaris, the following command can be used:
 $ uname -v
 snv_86

Note 2:  A system is only vulnerable to this issue if the Apache 1.3
web server has been configured and is running on the system.
To determine if the Apache 1.3 web server is running on the system,
the following command can be used:
 $ /usr/bin/ps -ef | grep "/usr/apache/bin/http"
 nobody 103892 102307 0 Jan 20 ? 0:27 /usr/apache/bin/httpd

Note 3: This vulnerability only affects systems which make use of the
Apache Server mod_perl(3) (PerlRun.pm) component.
To determine if the "PerlRun.pm" component is used, a command such as
the following can be run for all configuration files that define the
running Apache 1.3 configuration:
 $ grep PerlHandler /etc/apache/httpd.conf | grep Apache::PerlRun
 PerlHandler Apache::PerlRun

Note 4: Solaris 8 entered EOSL Phase 2 on 1 April 2009. Entitlement to
patches developed on or after 1 April 2009 requires the purchase of
the Solaris 8 Vintage Patch Service. See note in section 5 for more
details.

3. Symptoms
If the issue is exploited, the Apache 1.3 web server may be
unresponsive, possibly consuming all available CPU resources. Commands
such as prstat(1M) can be used to determine the utilization of system
resources:
 $ prstat -s cpu
 [...]

4. Workaround
To work around the described issue, make sure that the mod_perl(3)
(PerlRun.pm) component is not configured in the Apache 1.3
"httpd.conf" file.

5. Resolution
This issue is addressed in the following releases:
SPARC Platform
  * Solaris 8 with patch 116973-08 or later
  * Solaris 9 with patch 113146-12 or later
  * Solaris 10 with patch 122911-14 or later
  * OpenSolaris based upon build snv_100 or later

x86 Platform
  * Solaris 8 with patch 116974-08 or later
  * Solaris 9 with patch 114145-11 or later
  * Solaris 10 with patch 122912-14 or later
  * OpenSolaris based upon build snv_100 or later

Note: The READMEs of Solaris 8 patches developed on or after 1 April
2009 are available to all customers. However, Solaris 8 entered EOSL
Phase 2 on April 1, 2009 and thus entitlement for these patches,
including those that fix security vulnerabilities, requires the
purchase of the Solaris 8 Vintage Patch Service. More information
about the Solaris 8 Vintage Patch Service is available at:

http://www.sun.com/service/eosl/Solaris8.html

For more information on Security Sun Alerts, see Technical
Instruction ID 213557.
This Sun Alert notification is being provided to you on an "AS IS"
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Copyright 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved

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