Passing an absolute path to a file_exists check in phpBB before 3.2.4 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Passing an absolute path to a file_exists check in phpBB before 3.2.4 allows Remote Code Execution through     Object Injection by employing Phar deserialization when an attacker has access to the Admin Control Panel     with founder permissions. (CVE-2018-19274)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Passing an absolute path to a file_exists check in phpBB before 3.2.4 allows Remote Code Execution through
    Object Injection by employing Phar deserialization when an attacker has access to the Admin Control Panel
    with founder permissions. (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.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
262856	Linux Distros Unpatched Vulnerability : CVE-2018-19274	Nessus	Misc.	high
431777	SCA: security update for phpbb/phpbb (GHSA-h3mr-q96r-37v4)	Tenable Cloud Security	SCA Checks	high
431777	SCA: security update for phpbb/phpbb (GHSA-h3mr-q96r-37v4)	Tenable Self-Hosted Container Security	SCA Checks	high
119121	Debian DLA-1593-1 : phpbb3 security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2018-19274

high

Tenable Plugins

high

high

high

high