Articles / Debian: New wordpress packa…

Debian: New wordpress packages fix several vulnerabilities

Several vulnerabilities have been discovered in wordpress, weblog manager. 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 additions. 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 attacks. 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. Updated packages are available from security.debian.org.

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- ------------------------------------------------------------------------
Debian Security Advisory DSA-1871-1                  security@debian.org
http://www.debian.org/security/                      Steffen Joeris
August 23, 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              


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

CVE-2008-6762

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

CVE-2008-6767

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

CVE-2009-2334

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

CVE-2009-2854

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

CVE-2009-2851

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

CVE-2009-2853

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

CVE-2008-1502

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

CVE-2008-4106

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

CVE-2008-4769

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.

CVE-2008-4796

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.

CVE-2008-5113

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 2.0.10-1etch4.

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:

 http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.0.10-1etch4.diff.gz
   Size/MD5 checksum:    50984 45349b0822fc376b8cfef51b5cec3510
 http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.0.10.orig.tar.gz
   Size/MD5 checksum:   520314 e9d5373b3c6413791f864d56b473dd54
 http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.0.10-1etch4.dsc
   Size/MD5 checksum:      607 d9389cbc71eee6f08b15762a97c9d537

Architecture independent packages:

 http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.0.10-1etch4_all.deb
   Size/MD5 checksum:   521060 71a6aea482d0e7afb9c82701bef336e9


Debian GNU/Linux 5.0 alias lenny
- --------------------------------

Debian (stable)
- ---------------

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

Source archives:

 http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.5.1-11+lenny1.dsc
   Size/MD5 checksum:     1051 46d9daad717f36918e2709757523f6eb
 http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.5.1.orig.tar.gz
   Size/MD5 checksum:  1181886 b1a40387006e54dcbd963d0cb5da0df4
 http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.5.1-11+lenny1.diff.gz
   Size/MD5 checksum:   702119 07658ad36bed8829f58b1b6223eac294

Architecture independent packages:

 http://security.debian.org/pool/updates/main/w/wordpress/wordpress_2.5.1-11+lenny1_all.deb
   Size/MD5 checksum:  1029028 2d30e38e22761f87e23d2c85120bb1ff


 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>
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