Articles / Debian: New TYPO3 packages …

Debian: New TYPO3 packages fix remote code execution

Several remotely exploitable vulnerabilities have been discovered in the TYPO3 web content management framework. Chris John Riley discovered that the TYPO3-wide used encryption key is generated with an insufficiently random seed resulting in low entropy which makes it easier for attackers to crack this key. Marcus Krause discovered that TYPO3 is not invalidating a supplied session on authentication which allows an attacker to take over a victims session via a session fixation attack. Multiple cross-site scripting vulnerabilities allow remote attackers to inject arbitrary web script or HTML via various arguments and user- supplied strings used in the indexed search system extension, adodb extension test scripts or the workspace module. Mads Olesen discovered a remote command injection vulnerability in the indexed search system extension which allows attackers to execute arbitrary code via a crafted file name which is passed unescaped to various system tools that extract file content for the indexing. Updated packages are available from security.debian.org.
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- ------------------------------------------------------------------------
Debian Security Advisory DSA-1711-1                  security@debian.org
http://www.debian.org/security/                               Nico Golde
January 26, 2009                      http://www.debian.org/security/faq
- ------------------------------------------------------------------------

Package        : typo3-src
Vulnerability  : several
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2009-0255 CVE-2009-0256 CVE-2009-0257 CVE-2009-0258
Debian Bug     : 512608
BugTraq ID     : 33376

Several remotely exploitable vulnerabilities have been discovered in the
TYPO3 web content management framework.  The Common Vulnerabilities and
Exposures project identifies the following problems:

CVE-2009-0255
   Chris John Riley discovered that the TYPO3-wide used encryption key is
   generated with an insufficiently random seed resulting in low entropy
   which makes it easier for attackers to crack this key.

CVE-2009-0256
   Marcus Krause discovered that TYPO3 is not invalidating a supplied session
   on authentication which allows an attacker to take over a victims
   session via a session fixation attack.

CVE-2009-0257
   Multiple cross-site scripting vulnerabilities allow remote attackers to
   inject arbitrary web script or HTML via various arguments and user-
   supplied strings used in the indexed search system extension, adodb
   extension test scripts or the workspace module.

CVE-2009-0258
   Mads Olesen discovered a remote command injection vulnerability in
   the indexed search system extension which allows attackers to
   execute arbitrary code via a crafted file name which is passed
   unescaped to various system tools that extract file content for
   the indexing.


Because of CVE-2009-0255, please make sure that besides installing
this update, you also create a new encryption key after the
installation.

For the stable distribution (etch) these problems have been fixed in
version 4.0.2+debian-7.

For the unstable distribution (sid) these problems have been fixed in
version 4.2.5-1.

We recommend that you upgrade your TYPO3 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
- -------------------------------

Source archives:

 http://security.debian.org/pool/updates/main/t/typo3-src/typo3-src_4.0.2+debian.orig.tar.gz
   Size/MD5 checksum:  7683527 be509391b0e4d24278c14100c09dc673
 http://security.debian.org/pool/updates/main/t/typo3-src/typo3-src_4.0.2+debian-7.diff.gz
   Size/MD5 checksum:    23596 344f6b5ada56d361e274556d6d7eaf99
 http://security.debian.org/pool/updates/main/t/typo3-src/typo3-src_4.0.2+debian-7.dsc
   Size/MD5 checksum:      610 6b99cc9acd82ec6010a38006910169c9

Architecture independent packages:

 http://security.debian.org/pool/updates/main/t/typo3-src/typo3_4.0.2+debian-7_all.deb
   Size/MD5 checksum:    76924 33b4077e99038121aa5667a3a166d99e
 http://security.debian.org/pool/updates/main/t/typo3-src/typo3-src-4.0_4.0.2+debian-7_all.deb
   Size/MD5 checksum:  7691182 f5c8ecbf93c7af50b29b5ded8f455b75


 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 ' and http://packages.debian.org/
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