CVE-2023-37477Public exploitNetwork attack vector

Authenticated command execution via unvalidated firewall address

Published Jul 18, 2023 · Updated Oct 18, 2024

OS command injection in FIT2CLOUD 1Panel before 1.4.3 allows remote authenticated users to execute arbitrary commands via a firewall IP request. The /hosts/firewall/ip endpoint passes an unvalidated address value into firewall command construction, so shell metacharacters extend the intended command. An authenticated panel account with high privileges can trigger the endpoint without user interaction and gain complete control of the managed Linux server.

CVSS severity7.2
High
EPSS probability5.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in FIT2CLOUD 1Panel before 1.4.3 allows remote authenticated users to execute arbitrary commands via a firewall IP request. The /hosts/firewall/ip endpoint passes an unvalidated address value into firewall command construction, so shell metacharacters extend the intended command. An authenticated panel account with high privileges can trigger the endpoint without user interaction and gain complete control of the managed Linux server.

The record

CVE
CVE-2023-37477
Published
Jul 18, 2023
Updated
Oct 18, 2024
Vendor
FIT2CLOUD
Product
1Panel
Classifications
CWE-78, CWE-77, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 18, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.4.3
  2. Affected versionversion=< 1.4.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

FIT2CLOUD · 1Panelversion=0 <1.4.3; version=< 1.4.3

Published CVSS scores

7.2GitHubCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
8.8NISTCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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