🛡️ CVE-2023-37477 — 1panel

🟠 CVSS 8.0 — High ⚠️ Exploit Public CWE-78 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

1Panel command injection vulnerability in Firewall ip functionality

Summary

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.

Details

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.

PoC

the payload ; sleep 3 # will lead server response in 3 seconds

![image](https://user-images.githubusercontent.com/4935500/252299676-bc4a8b92-e475-40ee-a92a-fec9fad7a6c3.png)

the payload ; sleep 6 # will lead server response in 6 seconds

![image](https://user-images.githubusercontent.com/4935500/252299871-766cc411-69e5-4c6c-b4ff-7774fa974ea0.png)

Impact

An attacker can execute arbitrary code on the target system, which can lead to a complete compromise of the system.

Patches

The vulnerability has been fixed in v1.4.3.

Workarounds

It is recommended to upgrade the version to v1.4.3.

References

If you have any questions or comments about this advisory:

Open an issue in https://github.com/1Panel-dev/1Panel

Email us at [email protected]

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs administrative privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2023-37477 is classified as CWE-78: OS Command Injection. Untrusted input reaches a shell command without neutralisation, so an attacker can run arbitrary operating system commands.

Affected software

CVE-2023-37477 is recorded against 2 packages.

  • 1panel (fixed in 1.4.3)
  • github.com/1panel-dev/1panel

Timeline and source

Published on 18 July 2023 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com
github.com
github.com

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE CWE-78
Public Exploit ⚠️ Yes
Source NVD
Published 2023-07-18
Updated 2026-08-12
Modified 2026-06-17

Affected Packages

Software From version Fixed in
1panel — 1.4.3
github.com/1panel-dev/1panel — —

Similar Threats

Exploit Protection

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CVE-2023-37477 carries CVSS 8.0 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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