{"id":"CVE-2020-20277","aliases":["EUVD-2020-13064","GHSA-p2qh-598h-6m3x"],"status":"published","title":"There are multiple unauthenticated directory traversal vulnerabilities in different FTP commands...","description":"There are multiple unauthenticated directory traversal vulnerabilities in different FTP commands in uftpd FTP server versions 2.7 to 2.10 due to improper implementation of a chroot jail in common.c's compose_abspath function that can be abused to read or write to arbitrary files on the filesystem, leak process memory, or potentially lead to remote code execution.","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":"2026-11-10","score":0.26236,"percentile":0.98013,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-22"],"published":"2020-12-18T18:09:00Z","modified":"2026-10-20T13:52:40Z","exploits":[{"source":"exploitdb","id":"EDB-51000","title":"uftpd 2.10 - Directory Traversal (Authenticated)","type":"remote","platform":"linux","date":"2022-08-02","url":"https://www.exploit-db.com/exploits/51000"}],"products":[{"vendor":"troglobit","product":"uftpd"}],"references":[{"url":"https://github.com/troglobit/uftpd/commit/455b47d3756aed162d2d0ef7f40b549f3b5b30fe","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://arinerron.com/blog/posts/6","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"http://packetstormsecurity.com/files/167908/uftpd-2.10-Directory-Traversal.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-20277"},{"url":"https://github.com/advisories/GHSA-p2qh-598h-6m3x"}],"sources":{"cve":[{"id":"CVE-2020-20277","description":"There are multiple unauthenticated directory traversal vulnerabilities in different FTP commands in uftpd FTP server versions 2.7 to 2.10 due to improper implementation of a chroot jail in common.c's compose_abspath function that can be abused to read or write to arbitrary files on the filesystem, leak process memory, or potentially lead to remote code execution.","status":"published","published":"2020-12-18T18:09:00Z","modified":"2024-08-04T14:15:29.021Z","updated_at":"2026-11-02T14:35:45.763329Z"}],"euvd":[{"id":"EUVD-2020-13064","description":"There are multiple unauthenticated directory traversal vulnerabilities in different FTP commands in uftpd FTP server versions 2.7 to 2.10 due to improper implementation of a chroot jail in common.c's compose_abspath function that can be abused to read or write to arbitrary files on the filesystem, leak process memory, or potentially lead to remote code execution.","status":"published","published":"2020-12-18T18:09:00Z","modified":"2024-08-04T14:15:29Z","updated_at":"2026-11-03T03:07:24.770982Z"}],"ghsa":[{"id":"GHSA-p2qh-598h-6m3x","title":"There are multiple unauthenticated directory traversal vulnerabilities in different FTP commands...","description":"There are multiple unauthenticated directory traversal vulnerabilities in different FTP commands in uftpd FTP server versions 2.7 to 2.10 due to improper implementation of a chroot jail in common.c's compose_abspath function that can be abused to read or write to arbitrary files on the filesystem, leak process memory, or potentially lead to remote code execution.","status":"published","published":"2022-05-24T17:36:51Z","modified":"2023-01-27T05:03:11Z","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-22"],"updated_at":"2026-11-02T14:42:11.230183Z"}],"nvd":[{"id":"CVE-2020-20277","description":"There are multiple unauthenticated directory traversal vulnerabilities in different FTP commands in uftpd FTP server versions 2.7 to 2.10 due to improper implementation of a chroot jail in common.c's compose_abspath function that can be abused to read or write to arbitrary files on the filesystem, leak process memory, or potentially lead to remote code execution.","status":"published","published":"2020-12-18T19:15:14.11Z","modified":"2026-06-17T03:02:56.15Z","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":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:06:27.73474Z"}],"osv":[{"id":"CVE-2020-20277","description":"There are multiple unauthenticated directory traversal vulnerabilities in different FTP commands in uftpd FTP server versions 2.7 to 2.10 due to improper implementation of a chroot jail in common.c's compose_abspath function that can be abused to read or write to arbitrary files on the filesystem, leak process memory, or potentially lead to remote code execution.","status":"published","published":"2020-12-18T19:15:14.11Z","modified":"2026-10-20T13:52:40.072548819Z","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":"2026-11-02T15:44:15.212689Z"}]}}