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Debian Security Advisory DSA 925-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
December 22nd, 2005                     http://www.debian.org/security/faq
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Package        : phpbb2
Vulnerability  : several
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2005-3310 CVE-2005-3415 CVE-2005-3416 CVE-2005-3417
                 CVE-2005-3418 CVE-2005-3419 CVE-2005-3420 CVE-2005-3536
                 CVE-2005-3537
BugTraq IDs    : 15170 15243
Debian Bugs    : 35662 336582 336587

Several vulnerabilities have been discovered in phpBB, a fully
featured and skinnable flat webforum, 

The Common Vulnerabilities and Exposures project identifies the
following problems:


CVE-2005-3310

    Multiple interpretation errors allow remote authenticated users to
    inject arbitrary web script when remote avatars and avatar
    uploading are enabled.

CVE-2005-3415

    phpBB allows remote attackers to bypass protection mechanisms that
    deregister global variables that allows attackers to manipulate
    the behaviour of phpBB.

CVE-2005-3416

    phpBB allows remote attackers to bypass security checks when
    register_globals is enabled and the session_start function has not
    been called to handle a session.

CVE-2005-3417

    phpBB allows remote attackers to modify global variables and
    bypass security mechanisms.

CVE-2005-3418

    Multiple cross-site scripting (XSS) vulnerabilities allow remote
    attackers to inject arbitrary web scripts.

CVE-2005-3419

    An SQL injection vulnerability allows remote attackers to execute
    arbitrary SQL commands.

CVE-2005-3420

    phpBB allows remote attackers to modify regular expressions and
    execute PHP code via the signature_bbcode_uid parameter.

CVE-2005-3536

    Missing input sanitising of the topic type allows remote attackers
    to inject arbitrary SQL commands.

CVE-2005-3537

    Missing request validation permitted remote attackers to edit
    private messages of other users.

The old stable distribution (woody) does not contain phpbb2 packages.

For the stable distribution (sarge) these problems have been fixed in
version 2.0.13+1-6sarge2.

For the unstable distribution (sid) these problems have been fixed in
version 2.0.18-1.

We recommend that you upgrade your phpbb2 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 3.1 alias sarge
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  Source archives:

    http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2_2.0.13+1-6sarge2.dsc
      Size/MD5 checksum:      783 84a0dab5af965cf6ff418c2b2383a9ee
    http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2_2.0.13+1-6sarge2.diff.gz
      Size/MD5 checksum:    64580 e644237009e5eff92b86f21a5f6f4cbe
    http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2_2.0.13+1.orig.tar.gz
      Size/MD5 checksum:  3340445 678d0cb0372e46402a472c510fb90d78

  Architecture independent components:

    http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2-conf-mysql_2.0.13-6sarge2_all.deb
      Size/MD5 checksum:    37474 4cbfd2fe1e336214a3defddeff55ce65
    http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2-languages_2.0.13-6sarge2_all.deb
      Size/MD5 checksum:  2873096 f71e21b77d9f5bffa076a25d6687b4c2
    http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2_2.0.13-6sarge2_all.deb
      Size/MD5 checksum:   525514 f88101af29bf00db9a8fdb264e35d891


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

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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