HIGH

CVE-2021-39172

CVSS v3

8.8

HIGH

EPSS Score

57.2%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

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.

Technical details

Published
8/27/2021

Frequently asked questions

What is CVE-2021-39172?

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.

Is CVE-2021-39172 actively exploited?

Active exploitation of CVE-2021-39172 has not been confirmed. The EPSS score is 57.2%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-39172?

CVE-2021-39172 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2021-39172 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.