CVE-2023-37477: 1Panel is an open source Linux server operation and maintenance management panel. An OS command injection vulnerability exists in 1Panel firewall func...

Description

1Panel is an open source Linux server operation and maintenance management panel. An OS command injection vulnerability exists in 1Panel firewall functionality. A specially-crafted HTTP request can lead to arbitrary command execution. An attacker can make an authenticated HTTP request to trigger this vulnerability. 1Panel firewall functionality `/hosts/firewall/ip` endpoint read user input without validation, the attacker extends the default functionality of the application, which execute system commands. An attacker can execute arbitrary code on the target system, which can lead to a complete compromise of the system. This issue has been addressed in commit `e17b80cff49` which is included in release version `1.4.3`. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

5.35%

91.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Fit2cloud	1panel	< 1.4.3

References

https://github.com/1Panel-dev/1Panel/commit/e17b80cff4975ee343568ff526b62319f499005dPatch
https://github.com/1Panel-dev/1Panel/security/advisories/GHSA-p9xf-74xh-mhw5Exploit, Vendor Advisory
https://github.com/1Panel-dev/1Panel/commit/e17b80cff4975ee343568ff526b62319f499005dPatch
https://github.com/1Panel-dev/1Panel/security/advisories/GHSA-p9xf-74xh-mhw5Exploit, Vendor Advisory

Timeline

Published: Jul 18, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-37477?

1Panel is an open source Linux server operation and maintenance management panel. An OS command injection vulnerability exists in 1Panel firewall functionality. A specially-crafted HTTP request can lead to arbitrary command execution. An attacker can make an authenticated HTTP request to trigger this vulnerability. 1Panel firewall functionality `/hosts/firewall/ip` endpoint read user input without validation, the attacker extends the default functionality of the application, which execute system commands. An attacker can execute arbitrary code on the target system, which can lead to a complete compromise of the system. This issue has been addressed in commit `e17b80cff49` which is included in release version `1.4.3`. Users are advised to upgrade. There are no known workarounds for this vulnerability.

How severe is CVE-2023-37477?

CVE-2023-37477 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 5.35% probability of exploitation in the next 30 days.

How do I fix CVE-2023-37477?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.