Deserialization of Untrusted Data The advisory has been revoked - it doesn't affect any version of package phpbb3 (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1604-PHPBB3-456748
- published2 Dec 2018
- disclosed17 Nov 2018
Introduced: 17 Nov 2018
CVE-2018-19274 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:16.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream phpbb3 package and not the phpbb3 package as distributed by Ubuntu.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-19274
- https://www.phpbb.com/community/viewtopic.php?f=14&t=2492206
- https://lists.debian.org/debian-lts-announce/2018/11/msg00029.html
- https://security-tracker.debian.org/tracker/CVE-2018-19274
- https://blog.ripstech.com/2018/phpbb3-phar-deserialization-to-remote-code-execution/