{"id":"CVE-2011-1575","aliases":["DEBIAN-CVE-2011-1575","EUVD-2011-1576","GHSA-mqpg-5c3p-cx82"],"status":"published","title":"The STARTTLS implementation in ftp_parser.c in Pure-FTPd before 1.0.30 does not properly restrict...","description":"The STARTTLS implementation in ftp_parser.c in Pure-FTPd before 1.0.30 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted FTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack, a similar issue to CVE-2011-0411.","severity":{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.33341,"percentile":0.98384,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-399"],"published":"2011-05-23T22:00:00Z","modified":"2026-10-23T17:47:34Z","exploits":[{"source":"pocgithub","id":"masamoon/cve-2011-1575-poc","title":"masamoon/cve-2011-1575-poc","date":"2017-10-17","url":"https://github.com/masamoon/cve-2011-1575-poc"}],"fixes":[{"ecosystem":"Debian:12","package":"pure-ftpd","fixed_in":["1.0.30-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"pure-ftpd","fixed_in":["1.0.30-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"pure-ftpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.30-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"pure-ftpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.30-1"}]}]}],"products":[{"vendor":"pureftpd","product":"pure-ftpd"}],"references":[{"url":"http://openwall.com/lists/oss-security/2011/04/11/14","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=683221","tags":["x_refsource_CONFIRM","x_transferred","report"]},{"url":"http://archives.pureftpd.org/archives.cgi?100:mss:3906:201103:cpeojfkblajnpinkeadd","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://lists.opensuse.org/opensuse-updates/2011-05/msg00029.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://secunia.com/advisories/43988","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://openwall.com/lists/oss-security/2011/04/11/7","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://secunia.com/advisories/44548","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://openwall.com/lists/oss-security/2011/04/11/8","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://openwall.com/lists/oss-security/2011/04/11/3","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://www.pureftpd.org/project/pure-ftpd/news","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://bugzilla.novell.com/show_bug.cgi?id=686590","tags":["x_refsource_CONFIRM","x_transferred","Patch","fix"]},{"url":"http://archives.pureftpd.org/archives.cgi?100:mss:3910:201103:cpeojfkblajnpinkeadd","tags":["mailing-list","x_refsource_MLIST","x_transferred","Patch","fix"]},{"url":"https://github.com/jedisct1/pure-ftpd/commit/65c4d4ad331e94661de763e9b5304d28698999c4","tags":["x_refsource_CONFIRM","x_transferred","Patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-1575"},{"url":"https://github.com/advisories/GHSA-mqpg-5c3p-cx82"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-1575","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2011-1575","description":"The STARTTLS implementation in ftp_parser.c in Pure-FTPd before 1.0.30 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted FTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack, a similar issue to CVE-2011-0411.","status":"published","published":"2011-05-23T22:00:00Z","modified":"2024-08-06T22:28:41.928Z","updated_at":"2026-11-02T14:35:38.711857Z"}],"euvd":[{"id":"EUVD-2011-1576","description":"The STARTTLS implementation in ftp_parser.c in Pure-FTPd before 1.0.30 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted FTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack, a similar issue to CVE-2011-0411.","status":"published","published":"2011-05-23T22:00:00Z","modified":"2024-08-06T22:28:41Z","updated_at":"2026-11-03T01:55:56.243798Z"}],"ghsa":[{"id":"GHSA-mqpg-5c3p-cx82","title":"The STARTTLS implementation in ftp_parser.c in Pure-FTPd before 1.0.30 does not properly restrict...","description":"The STARTTLS implementation in ftp_parser.c in Pure-FTPd before 1.0.30 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted FTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack, a similar issue to CVE-2011-0411.","status":"published","published":"2022-05-17T04:52:35Z","modified":"2023-01-28T05:02:49Z","updated_at":"2026-11-02T14:43:51.142982Z"}],"nvd":[{"id":"CVE-2011-1575","description":"The STARTTLS implementation in ftp_parser.c in Pure-FTPd before 1.0.30 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted FTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack, a similar issue to CVE-2011-0411.","status":"published","published":"2011-05-23T22:55:01.207Z","modified":"2026-06-16T23:29:39.533Z","cvss":[{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:02:08.47516Z"}],"osv":[{"id":"CVE-2011-1575","description":"The STARTTLS implementation in ftp_parser.c in Pure-FTPd before 1.0.30 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted FTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack, a similar issue to CVE-2011-0411.","status":"published","published":"2011-05-23T22:55:01Z","modified":"2026-04-10T03:41:44.605726Z","updated_at":"2026-11-02T15:43:58.279353Z"},{"id":"DEBIAN-CVE-2011-1575","description":"The STARTTLS implementation in ftp_parser.c in Pure-FTPd before 1.0.30 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted FTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack, a similar issue to CVE-2011-0411.","status":"published","published":"2011-05-23T22:55:01.207Z","modified":"2026-10-23T17:47:34.935978112Z","updated_at":"2026-11-02T15:45:24.612044Z"}]}}