{"id":"CVE-2023-43644","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.","aliases":["GHSA-r5hm-mp3j-285g","GO-2023-2077"],"modified":"2026-08-12T03:51:19.400327137Z","published":"2023-09-25T19:12:35.949Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-306"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43644.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43644.json"},{"type":"ADVISORY","url":"https://github.com/SagerNet/sing-box/security/advisories/GHSA-r5hm-mp3j-285g"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-43644"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sagernet/sing-box","events":[{"introduced":"0"},{"fixed":"e57207a1bcf9d69a491363e1491dd0a37c2f69a0"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:sagernet:sing-box:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.4.5"}]}}],"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"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"}]}