CVE-2023-43644

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Source
https://nvd.nist.gov/vuln/detail/CVE-2023-43644
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-43644.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-43644
Aliases
Published
2023-09-25T19:12:35.949Z
Modified
2025-11-14T03:34:21.232171Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
Improper authentication in the SOCKS5 inbound in sing-box
Details

Sing-box is an open source proxy system. Affected versions are subject to an authentication bypass when specially crafted requests are sent to sing-box. This affects all SOCKS5 inbounds with user authentication and an attacker may be able to bypass authentication. Users are advised to update to sing-box 1.4.4 or to 1.5.0-rc.4. Users unable to update should not expose the SOCKS5 inbound to insecure environments.

Database specific 
{
    "cwe_ids": [
        "CWE-306"
    ]
}
References

Affected packages

Git / github.com/sagernet/sing-box

Affected ranges

Type
GIT
Repo
https://github.com/sagernet/sing-box
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
e57207a1bcf9d69a491363e1491dd0a37c2f69a0
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.4.5"
        }
    ]
}
Type
GIT
Repo
https://github.com/sagernet/sing-box
Events
Introduced
406e089d13273d6d5fba45e4d4bcc4cb8a543708
Fixed
f4fc7764087fb82463d3d5526d09481727352553
Database specific 
{
    "versions": [
        {
            "introduced": "1.5.0-beta.1"
        },
        {
            "fixed": "1.5.0-rc.4"
        }
    ]
}