CVE-2018-19422 Subrion CMS RCE Vulnerability

High 7.2 Published Updated

Remote attackers can execute arbitrary PHP code by uploading .pht or .phar files due to missing restrictions in the .htaccess configuration.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2018-19422?

CVE-2018-19422 is a high-severity vulnerability in n/a, published on 21 Nov 2018. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

/panel/uploads in Subrion CMS 4.2.1 allows remote attackers to execute arbitrary PHP code via a .pht or .phar file, because the .htaccess file omits these.

Weakness: CWE-434

Which versions are affected by CVE-2018-19422?

2 open source packages ship an affected version, including intelliants/subrion. It affects 1 product.

PackageAffectedFixed in
intelliants/subrion PackagistAll versions4.2.2
intelliants/subrion PackagistAll versions4.2.2

Products include Intelliants Subrion Cms.

How do I fix CVE-2018-19422?

Upgrade intelliants/subrion to 4.2.2 or later.

Is CVE-2018-19422 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-19422 exists.

Public exploit code: 1 Metasploit module, 1 Exploit-DB entry and 3 proofs of concept on GitHub.

Sources

Also known as GHSA-73xj-v6gc-g5p5.

Is CVE-2018-19422 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free