CVE-2021-39172 Information

Description

Cachet is an open source status page system. Prior to version 2.5.1 authenticated users regardless of their privileges (User or Admin) can exploit a new line injection in the configuration edition feature (e.g. mail settings) and gain arbitrary code execution on the server. This issue was addressed in version 2.5.1 by improving UpdateConfigCommandHandler and preventing the use of new lines characters in new configuration values. As a workaround only allow trusted source IP addresses to access to the administration dashboard.

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/fiveai/Cachet/releases/tag/v2.5.1 https://github.com/fiveai/Cachet/security/advisories/GHSA-9jxw-cfrh-jxq6

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