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27 August 2009

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

            New wordpress packages fix several vulnerabilities
                              27 August 2009


        AusCERT Security Bulletin Summary

Product:           wordpress
Publisher:         Debian
Operating System:  Debian GNU/Linux
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Provide Misleading Information  -- Remote/Unauthenticated
                   Increased Privileges            -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
                   Unauthorised Access             -- Remote/Unauthenticated
                   Modify Arbitrary Files          -- Remote/Unauthenticated
                   Create Arbitrary Files          -- Remote/Unauthenticated
                   Cross-site Scripting            -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2009-2854 CVE-2009-2853 CVE-2009-2851
                   CVE-2009-2334 CVE-2008-6767 CVE-2008-6762
                   CVE-2008-5113 CVE-2008-4796 CVE-2008-4769
                   CVE-2008-4106 CVE-2008-1502 

Reference:         ASB-2009.1058

Original Bulletin: 

Revision History:  August 27 2009: Updated packages for Debian 4.0 due to a 
                                   regression with the original patch
                   August 24 2009: Initial Release

- --------------------------BEGIN INCLUDED TEXT--------------------

Hash: SHA1

- - ------------------------------------------------------------------------
Debian Security Advisory DSA-1871-2                  security@debian.org
http://www.debian.org/security/                      Steffen Joeris
August 27, 2009                       http://www.debian.org/security/faq
- - ------------------------------------------------------------------------

Package        : wordpress               
Vulnerability  : several vulnerabilities 
Problem type   : remote                  
Debian-specific: no                      
CVE IDs        : CVE-2008-6762 CVE-2008-6767 CVE-2009-2334 CVE-2009-2854
                 CVE-2009-2851 CVE-2009-2853 CVE-2008-1502 CVE-2008-4106
                 CVE-2008-4769 CVE-2008-4796 CVE-2008-5113              
Debian Bugs    : 531736 536724 504243 500115 504234 504771              

The previous wordpress update introduced a regression when fixing
CVE-2008-4769 due to a function that was not backported with the patch.
Please note that this regression only affects the oldstable distribution
(etch). For reference the original advisory text follows.

Several vulnerabilities have been discovered in wordpress, weblog
manager. The Common Vulnerabilities and Exposures project identifies the
following problems:                                                     


It was discovered that wordpress is prone to an open redirect 
vulnerability which allows remote attackers to conduct phishing atacks.


It was discovered that remote attackers had the ability to trigger an
application upgrade, which could lead to a denial of service attack. 


It was discovered that wordpress lacks authentication checks in the                                                                                                                
plugin configuration, which might leak sensitive information.                                                                                                                      


It was discovered that wordpress lacks authentication checks in various
actions, thus allowing remote attackers to produce unauthorised edits or


It was discovered that the administrator interface is prone to a
cross-site scripting attack.                                    


It was discovered that remote attackers can gain privileges via certain
direct requests.                                                       


It was discovered that the _bad_protocol_once function in KSES, as used
by wordpress, allows remote attackers to perform cross-site scripting  


It was discovered that wordpress lacks certain checks around user
information, which could be used by attackers to change the password of
a user.                                                                


It was discovered that the get_category_template function is prone to a
directory traversal vulnerability, which could lead to the execution of
arbitrary code.                                                        


It was discovered that the _httpsrequest function in the embedded snoopy
version is prone to the execution of arbitrary commands via shell       
metacharacters in https URLs.                                           


It was discovered that wordpress relies on the REQUEST superglobal array
in certain dangerous situations, which makes it easier to perform       
attacks via crafted cookies.                                            

For the stable distribution (lenny), these problems have been fixed in
version 2.5.1-11+lenny1.                                              

For the oldstable distribution (etch), these problems have been fixed in
version 2.0.10-1etch5.                                                  

For the testing distribution (squeeze) and the unstable distribution
(sid), these problems have been fixed in version 2.8.3-1.           

We recommend that you upgrade your wordpress packages.

Upgrade instructions
- - --------------------

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
        will update the internal database
apt-get upgrade
        will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.

Debian GNU/Linux 4.0 alias etch
- - -------------------------------

Debian (oldstable)
- - ------------------

Oldstable updates are available for alpha, amd64, arm, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.

Source archives:

    Size/MD5 checksum:      607 303f4e7e168c04dddd64ae2b7300337e
    Size/MD5 checksum:   520314 e9d5373b3c6413791f864d56b473dd54
    Size/MD5 checksum:    51120 9dcee118356aa6950bd4b994b6c11def

Architecture independent packages:

    Size/MD5 checksum:   521174 18a19046fd5707ea64745818a5a673f6

  These files will probably be moved into the stable distribution on
  its next update.

- - ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
Version: GnuPG v1.4.9 (GNU/Linux)


- --------------------------END INCLUDED TEXT--------------------

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