CVE-2021-39172 HIGH

CVE-2021-39172: New line injection during configuration edition

Vendor Fiveai
Product Cachet
Weakness CWE-93 · CRLF injection
Published August 27, 2021
Last update August 4, 2024

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 27, 2021 CVE published
August 4, 2024 Record updated