CVE-2021-42561 Information

Description

An issue was discovered in CALDERA 2.8.1. When activated the Human plugin passes the unsanitized name parameter to a python \os.system\ function. This allows attackers to use shell metacharacters (e.g. backticks ``\ or dollar parenthesis $()\ ) in order to escape the current command and execute arbitrary shell commands.

CVSS Vector

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

Reference

https://github.com/mitre/caldera/releases https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42561-Command%20Injection%20Via%20the%20Human%20Plugin-MITRE%20Caldera

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