CVE-2018-19274 phpBB Remote Code Execution
An attacker with founder admin access can achieve remote code execution via Phar deserialization in phpBB.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-19274?
CVE-2018-19274 is a high-severity unsafe deserialization vulnerability in Debian Debian Linux, published on 17 Nov 2018. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2018-19274?
2 open source packages ship an affected version, including phpbb/phpbb. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
phpbb/phpbb Packagist | All versions | 3.2.4 |
phpbb/phpbb Packagist | All versions | 3.2.4 |
Products include Debian Debian Linux, Phpbb Phpbb.
How do I fix CVE-2018-19274?
Upgrade phpbb/phpbb to 3.2.4 or later.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2018-19274 being exploited?
There is no known exploitation of CVE-2018-19274 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DLA-1593-1, GHSA-h3mr-q96r-37v4, UBUNTU-CVE-2018-19274.