{"id":"CVE-2023-45239","aliases":["EUVD-2023-49545","GHSA-p334-5r3g-4vx3"],"status":"published","description":"A lack of input validation exists in tac_plus prior to commit 4fdf178 which, when pre or post auth commands are enabled, allows an attacker who can control the username, rem-addr, or NAC address sent to tac_plus to inject shell commands and gain remote code execution on the tac_plus server.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02258,"percentile":0.83096,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-790"],"published":"2023-10-06T17:16:16Z","modified":"2026-10-28T02:31:04Z","exploits":[{"source":"pocgithub","id":"takeshixx/tac_plus-pre-auth-rce","title":"takeshixx/tac_plus-pre-auth-rce","date":"2024-04-29","url":"https://github.com/takeshixx/tac_plus-pre-auth-rce"}],"products":[{"vendor":"facebook","product":"tac_plus"},{"vendor":"fedoraproject","product":"fedora"},{"vendor":"meta","product":"tac_plus"}],"references":[{"url":"https://github.com/facebook/tac_plus/pull/41","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","fix"]},{"url":"https://github.com/facebook/tac_plus/security/advisories/GHSA-p334-5r3g-4vx3","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X4J7ZYMFZB4G4OU5EDJPQLP6F6RKDGIH/","tags":["x_transferred","Mailing List","Third Party Advisory","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45239.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-45239","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-45239","description":"A lack of input validation exists in tac_plus prior to commit 4fdf178 which, when pre or post auth commands are enabled, allows an attacker who can control the username, rem-addr, or NAC address sent to tac_plus to inject shell commands and gain remote code execution on the tac_plus server.","status":"published","published":"2023-10-06T17:16:16.797Z","modified":"2025-02-13T17:13:58.34Z","cwes":["CWE-790"],"updated_at":"2026-11-02T14:35:22.984825Z"}],"euvd":[{"id":"EUVD-2023-49545","description":"A lack of input validation exists in tac_plus prior to commit 4fdf178 which, when pre or post auth commands are enabled, allows an attacker who can control the username, rem-addr, or NAC address sent to tac_plus to inject shell commands and gain remote code execution on the tac_plus server.","status":"published","published":"2023-10-06T17:16:16Z","modified":"2025-02-13T17:13:58Z","cvss":[{"version":"","score":0,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"none"}],"updated_at":"2026-11-03T00:03:48.562419Z"}],"nvd":[{"id":"CVE-2023-45239","description":"A lack of input validation exists in tac_plus prior to commit 4fdf178 which, when pre or post auth commands are enabled, allows an attacker who can control the username, rem-addr, or NAC address sent to tac_plus to inject shell commands and gain remote code execution on the tac_plus server.","status":"published","published":"2023-10-06T18:15:12.337Z","modified":"2026-06-17T06:28:30.733Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-790"],"updated_at":"2026-11-02T14:08:36.656095Z"}],"osv":[{"id":"CVE-2023-45239","description":"A lack of input validation exists in tac_plus prior to commit 4fdf178 which, when pre or post auth commands are enabled, allows an attacker who can control the username, rem-addr, or NAC address sent to tac_plus to inject shell commands and gain remote code execution on the tac_plus server.","status":"published","published":"2023-10-06T17:16:16.797Z","modified":"2026-10-28T02:31:04.948884433Z","updated_at":"2026-11-02T15:44:33.792101Z"}]}}