CVE-2021-39172 : Cachet is an open source status page system. Prior to version 2.5.1, authenticat

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.

Published 2021-08-27 23:15:07

Updated 2022-12-13 16:51:19

Source GitHub, Inc.

View at NVD, CVE.org

Products affected by CVE-2021-39172

Catchethq » Catchet
Versions before (<) 2.5.1
cpe:2.3:a:catchethq:catchet:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-39172

EPSS FAQ

0.91%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 83 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-39172

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.5	MEDIUM	AV:N/AC:L/Au:S/C:P/I:P/A:P	8.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	GitHub, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2021-39172

CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')

The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.

Assigned by: security-advisories@github.com (Primary)

References for CVE-2021-39172

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

New line injection during configuration edition · Advisory · fiveai/Cachet · GitHub
Third Party Advisory
https://github.com/fiveai/Cachet/releases/tag/v2.5.1

Release v2.5.1 · fiveai/Cachet · GitHub
Release Notes;Third Party Advisory

CVEs referencing this url
https://blog.sonarsource.com/cachet-code-execution-via-laravel-configuration-injection/

Cachet 2.4: Code Execution via Laravel Configuration Injection
Exploit;Third Party Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2021-39172

Products affected by CVE-2021-39172

Exploit prediction scoring system (EPSS) score for CVE-2021-39172

CVSS scores for CVE-2021-39172

CWE ids for CVE-2021-39172

References for CVE-2021-39172