ESB-2018.3648 - [UNIX/Linux][Debian] phpbb3: Execute arbitrary code/commands - Existing account 2018-11-26

Printable version
PGP/GPG verifiable version

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.3648
                    [DLA 1593-1] phpbb3 security update
                             26 November 2018

===========================================================================

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

Product:           phpbb3
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-19274  

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2018/11/msg00029.html

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running phpbb3 check for an updated version of the software for 
         their operating system.

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

- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Package        : phpbb3
Version        : 3.0.12-5+deb8u2
CVE ID         : CVE-2018-19274

Simon Scannell and Robin Peraglie of RIPS Technologies discovered that
passing an absolute path to a file_exists check in phpBB, a full
featured web forum, allows remote code execution through Object
Injection by employing Phar deserialization when an attacker has access
to the Admin Control Panel with founder permissions.

The fix for this issue resulted in the removal of setting the
ImageMagick path. The GD image library can be used as a replacement
and a new event to generate thumbnails was added, so it is possible to
write an extension that uses a different image library to generate
thumbnails.

For Debian 8 "Jessie", this problem has been fixed in version
3.0.12-5+deb8u2.

We recommend that you upgrade your phpbb3 packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
- -----BEGIN PGP SIGNATURE-----
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=xaLH
- -----END PGP SIGNATURE-----

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

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=Oplw
-----END PGP SIGNATURE-----

« Back to bulletins