PT-2018-14897 · Phpbb Limited · Phpbb

Robin Peraglie + 1 · Published 2018-11-17 · Updated 2022-12-02 · CVE-2018-19274

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions phpBB versions prior to 3.2.4

Description The issue allows for Remote Code Execution through Object Injection by utilizing Phar deserialization. This can be achieved by passing an absolute path to a file exists check. The exploitation of this issue requires access to the Admin Control Panel with founder permissions.

Recommendations For versions prior to 3.2.4, update to version 3.2.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the Admin Control Panel to minimize the risk of exploitation.

Exploit

Fix

RCE

Prototype Pollution

Deserialization of Untrusted Data

Weakness Enumeration

CWE-1321

CWE-502

Related Identifiers

CVE-2018-19274

DLA-1593-1

GHSA-H3MR-Q96R-37V4

Affected Products

Phpbb

References · 16

• 🔥 https://blog.ripstech.com/2018/phpbb3-phar-deserialization-to-remote-code-execution · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-19274 · Security Note
• https://osv.dev/vulnerability/GHSA-h3mr-q96r-37v4 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-19274 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-19274 · Vendor Advisory
• https://security-tracker.debian.org/tracker/DLA-1593-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/source-package/phpbb3 · Vendor Advisory
• https://phpbb.com/community/viewtopic.php?f=14&t=2492206 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-19274 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19274 · Security Note
• https://osv.dev/vulnerability/DLA-1593-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-19274 · Vendor Advisory
• https://github.com/phpbb/phpbb-app · Note
• https://lists.debian.org/debian-lts-announce/2018/11/msg00029.html · Note
• https://packages.debian.org/src:phpbb3 · Note