Improper authentication in the SOCKS5 inbound in sing-box

{
  "id": "e3abcc84f287ead636e02975a316900bbd1ebccc86347c28e6a857dd36289b7d",
  "url": "https://osv.dev/vulnerability/CVE-2023-43644",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Improper authentication in the SOCKS5 inbound in sing-box",
    "summary": "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.",
    "evidence": "osv:CVE-2023-43644",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2023-43644",
      "aliases": [
        "CVE-2023-43644",
        "GHSA-r5hm-mp3j-285g",
        "GO-2023-2077"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/sagernet/sing-box",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e57207a1bcf9d69a491363e1491dd0a37c2f69a0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:sagernet:sing-box:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.4.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.4.4",
            "v1.4.3",
            "v1.4.2",
            "v1.4.1",
            "v1.4.0",
            "v1.4.0-rc.3",
            "v1.4.0-rc.1",
            "v1.4.0-beta.6",
            "v1.3.6",
            "v1.3.5",
            "v1.3.4",
            "v1.3.3",
            "v1.3.1-rc.1",
            "v1.3.1-beta.3",
            "v1.3.1-beta.2",
            "v1.3.1-beta.1",
            "v1.3.0",
            "v1.3-rc2",
            "v1.3-rc1",
            "v1.3-beta14",
            "v1.3-beta13",
            "v1.2.7",
            "v1.2.6",
            "v1.2.4",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.2-rc1",
            "v1.2-beta10",
            "v1.2-beta9",
            "v1.2-beta8",
            "v1.2-beta7",
            "v1.2-beta6",
            "v1.2-beta5",
            "v1.2-beta4",
            "v1.2-beta3",
            "v1.2-beta2",
            "v1.2-beta1",
            "v1.1.5",
            "v1.1.4",
            "v1.1.2",
            "v1.1.1",
            "v1.1.0",
            "v1.1",
            "v1.1-rc1",
            "v1.1-beta18",
            "1.1-beta17",
            "v1.1-beta16",
            "v1.1-beta15",
            "v1.1-beta14",
            "v1.1-beta13",
            "v1.1-beta12",
            "v1.1-beta11",
            "v1.1-beta10",
            "v1.1-beta9",
            "v1.1-beta8",
            "v1.1-beta7",
            "v1.1-beta6",
            "v1.1-beta5",
            "v1.1-beta4",
            "v1.1-beta3",
            "v1.1-beta2",
            "v1.0.1",
            "v1.1-beta1",
            "v1.0",
            "v1.0-rc1",
            "v1.0-beta3",
            "v1.0-beta2",
            "v1.0-beta1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-43644.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.974832051Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43644.json",
        "https://github.com/SagerNet/sing-box/security/advisories/GHSA-r5hm-mp3j-285g",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-43644"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-306"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43644.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-43644",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521584,
  "published_at": "2023-09-25T19:12:35.949+00:00"
}