CVE-2021-44981 Information

Description

In QuickBox Pro v2.5.8 and below the config.php file has a variable which takes a GET parameter value and parses it into a shell_exec(’’); function without properly sanitizing any shell arguments therefore remote code execution is possible. Additionally as the media server is running as root by default attackers can use the sudo command within this shell_exec(’’); function which allows for privilege escalation by means of RCE.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://websec.nl/blog/61b2b37a43a1155c848f3b08/websec%20finds%20critical%20vulnerabilities%20in%20popular%20media%20server https://github.com/QuickBox/QB/issues/202

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8