{"id":"CVE-2023-28503","aliases":["EUVD-2023-32173","GHSA-g594-6376-7c5r"],"status":"published","title":"Authentication bypass in UniRPC's udadmin service","description":"Rocket Software UniData versions prior to 8.2.4 build 3003 and UniVerse versions prior to 11.3.5 build 1001 or 12.2.1 build 2002 suffer from an authentication bypass vulnerability, where a special username with a deterministic password can be leveraged to bypass authentication checks and execute OS commands as the root user.","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":0.60659,"percentile":0.99153,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-287","CWE-798"],"published":"2023-03-29T20:09:43Z","modified":"2026-06-17T05:47:53Z","exploits":[{"source":"metasploit","id":"exploit/linux/misc/unidata_udadmin_auth_bypass","title":"Rocket Software Unidata udadmin_server Authentication Bypass","type":"exploit","platform":"Linux,Unix","date":"2023-03-30","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/linux/misc/unidata_udadmin_auth_bypass"}],"products":[{"vendor":"rocket software","product":"unidata"},{"vendor":"rocket software","product":"universe"},{"vendor":"rocketsoftware","product":"unidata"},{"vendor":"rocketsoftware","product":"universe"}],"references":[{"url":"https://www.rapid7.com/blog/post/2023/03/29/multiple-vulnerabilities-in-rocket-software-unirpc-server-fixed/","tags":["third-party-advisory","x_transferred","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/171854/Rocket-Software-Unidata-udadmin_server-Authentication-Bypass.html","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28503"},{"url":"https://www.rapid7.com/blog/post/2023/03/29/multiple-vulnerabilities-in-rocket-software-unirpc-server-fixed"},{"url":"https://github.com/advisories/GHSA-g594-6376-7c5r"}],"sources":{"cve":[{"id":"CVE-2023-28503","title":"Authentication bypass in UniRPC's udadmin service","description":"Rocket Software UniData versions prior to 8.2.4 build 3003 and UniVerse versions prior to 11.3.5 build 1001 or 12.2.1 build 2002 suffer from an authentication bypass vulnerability, where a special username with a deterministic password can be leveraged to bypass authentication checks and execute OS commands as the root user.","status":"published","published":"2023-03-29T20:09:43.764Z","modified":"2025-02-18T16:05:42.549Z","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":"adp"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:35:32.376766Z"}],"euvd":[{"id":"EUVD-2023-32173","description":"Rocket Software UniData versions prior to 8.2.4 build 3003 and UniVerse versions prior to 11.3.5 build 1001 or 12.2.1 build 2002 suffer from an authentication bypass vulnerability, where a special username with a deterministic password can be leveraged to bypass authentication checks and execute OS commands as the root user.","status":"published","published":"2023-03-29T20:09:43Z","modified":"2025-02-18T16:05:42Z","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"}],"updated_at":"2026-11-02T20:53:29.418558Z"}],"ghsa":[{"id":"GHSA-g594-6376-7c5r","title":"Rocket Software UniData versions prior to 8.2.4 build 3003 and UniVerse versions prior to 11.3.5...","description":"Rocket Software UniData versions prior to 8.2.4 build 3003 and UniVerse versions prior to 11.3.5 build 1001 or 12.2.1 build 2002 suffer from an authentication bypass vulnerability, where a special username with a deterministic password can be leveraged to bypass authentication checks and execute OS commands as the root user.","status":"published","published":"2023-03-29T21:30:16Z","modified":"2025-02-18T18:34:06Z","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"}],"cwes":["CWE-287","CWE-798"],"updated_at":"2026-11-02T14:59:58.679357Z"}],"nvd":[{"id":"CVE-2023-28503","description":"Rocket Software UniData versions prior to 8.2.4 build 3003 and UniVerse versions prior to 11.3.5 build 1001 or 12.2.1 build 2002 suffer from an authentication bypass vulnerability, where a special username with a deterministic password can be leveraged to bypass authentication checks and execute OS commands as the root user.","status":"published","published":"2023-03-29T21:15:08.123Z","modified":"2026-06-17T05:47:53.547Z","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"},{"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":"secondary"}],"cwes":["CWE-798","CWE-287"],"updated_at":"2026-11-02T14:07:51.883939Z"}]}}