Vulnerability · Published Aug 4, 2021 · Assigned by GitHub_M
CVE-2021-32706(Authenticated) Remote Code Execution Possible in Web Interface 5.5
High 7.6
In plain English
A high-severity code injection in AdminLTE from pi-hole. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 60.2% (higher than 99.1% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit.
Official description
Pi-hole's Web interface provides a central location to manage a Pi-hole instance and review performance statistics. Prior to Pi-hole Web interface version 5.5.1, the `validDomainWildcard` preg_match filter allows a malicious character through that can be used to execute code, list directories, and overwrite sensitive files. The issue lies in the fact that one of the periods is not escaped, allowing any character to be used in its place. A patch for this vulnerability was released in version 5.5.1.
Affected products (as reported)
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
References
- https://github.com/pi-hole/AdminLTE/security/advisories/GHSA-5cm9-6p3m-v259 x_refsource_CONFIRM
- https://github.com/pi-hole/AdminLTE/releases/tag/v5.5.1 x_refsource_MISC