{"id":"CVE-2012-5975","aliases":["EUVD-2012-5849","GHSA-rg8f-w58v-jv6v"],"status":"published","title":"The SSH USERAUTH CHANGE REQUEST feature in SSH Tectia Server 6.0.4 through 6.0.20, 6.1.0 through...","description":"The SSH USERAUTH CHANGE REQUEST feature in SSH Tectia Server 6.0.4 through 6.0.20, 6.1.0 through 6.1.12, 6.2.0 through 6.2.5, and 6.3.0 through 6.3.2 on UNIX and Linux, when old-style password authentication is enabled, allows remote attackers to bypass authentication via a crafted session involving entry of blank passwords, as demonstrated by a root login session from a modified OpenSSH client with an added input_userauth_passwd_changereq call in sshconnect2.c.","severity":{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.35874,"percentile":0.98479,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-287"],"published":"2012-12-04T23:00:00Z","modified":"2026-06-16T23:47:39Z","exploits":[{"source":"exploitdb","id":"EDB-23082","title":"(SSH.com Communications) SSH Tectia (SSH \u003c 2.0-6.1.9.95 / Tectia 6.1.9.95) - Remote Authentication Bypass","type":"remote","platform":"linux","date":"2012-12-02","verified":true,"url":"https://www.exploit-db.com/exploits/23082"},{"source":"exploitdb","id":"EDB-23156","title":"(SSH.com Communications) SSH Tectia - USERAUTH Change Request Password Reset (Metasploit)","type":"remote","platform":"unix","date":"2012-12-05","verified":true,"url":"https://www.exploit-db.com/exploits/23156"},{"source":"metasploit","id":"exploit/unix/ssh/tectia_passwd_changereq","title":"Tectia SSH USERAUTH Change Request Password Reset Vulnerability","type":"exploit","platform":"Unix","date":"2012-12-01","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/unix/ssh/tectia_passwd_changereq"}],"products":[{"vendor":"ssh","product":"tectia_server"}],"references":[{"url":"http://www.exploit-db.com/exploits/23082/","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2012-12/0065.html","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2012-12/0013.html","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"]},{"url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/ssh/tectia_passwd_changereq.rb","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-5975"},{"url":"http://www.exploit-db.com/exploits/23082"},{"url":"https://github.com/advisories/GHSA-rg8f-w58v-jv6v"}],"sources":{"cve":[{"id":"CVE-2012-5975","description":"The SSH USERAUTH CHANGE REQUEST feature in SSH Tectia Server 6.0.4 through 6.0.20, 6.1.0 through 6.1.12, 6.2.0 through 6.2.5, and 6.3.0 through 6.3.2 on UNIX and Linux, when old-style password authentication is enabled, allows remote attackers to bypass authentication via a crafted session involving entry of blank passwords, as demonstrated by a root login session from a modified OpenSSH client with an added input_userauth_passwd_changereq call in sshconnect2.c.","status":"published","published":"2012-12-04T23:00:00Z","modified":"2024-09-17T02:37:22.733Z","updated_at":"2026-11-02T14:34:49.600255Z"}],"euvd":[{"id":"EUVD-2012-5849","description":"The SSH USERAUTH CHANGE REQUEST feature in SSH Tectia Server 6.0.4 through 6.0.20, 6.1.0 through 6.1.12, 6.2.0 through 6.2.5, and 6.3.0 through 6.3.2 on UNIX and Linux, when old-style password authentication is enabled, allows remote attackers to bypass authentication via a crafted session involving entry of blank passwords, as demonstrated by a root login session from a modified OpenSSH client with an added input_userauth_passwd_changereq call in sshconnect2.c.","status":"published","published":"2012-12-04T23:00:00Z","modified":"2024-09-17T02:37:22Z","updated_at":"2026-11-03T00:28:38.75517Z"}],"ghsa":[{"id":"GHSA-rg8f-w58v-jv6v","title":"The SSH USERAUTH CHANGE REQUEST feature in SSH Tectia Server 6.0.4 through 6.0.20, 6.1.0 through...","description":"The SSH USERAUTH CHANGE REQUEST feature in SSH Tectia Server 6.0.4 through 6.0.20, 6.1.0 through 6.1.12, 6.2.0 through 6.2.5, and 6.3.0 through 6.3.2 on UNIX and Linux, when old-style password authentication is enabled, allows remote attackers to bypass authentication via a crafted session involving entry of blank passwords, as demonstrated by a root login session from a modified OpenSSH client with an added input_userauth_passwd_changereq call in sshconnect2.c.","status":"published","published":"2022-05-17T05:18:16Z","modified":"2025-04-11T04:05:29Z","cwes":["CWE-287"],"updated_at":"2026-11-02T15:01:12.54248Z"}],"nvd":[{"id":"CVE-2012-5975","description":"The SSH USERAUTH CHANGE REQUEST feature in SSH Tectia Server 6.0.4 through 6.0.20, 6.1.0 through 6.1.12, 6.2.0 through 6.2.5, and 6.3.0 through 6.3.2 on UNIX and Linux, when old-style password authentication is enabled, allows remote attackers to bypass authentication via a crafted session involving entry of blank passwords, as demonstrated by a root login session from a modified OpenSSH client with an added input_userauth_passwd_changereq call in sshconnect2.c.","status":"published","published":"2012-12-04T23:55:00.973Z","modified":"2026-06-16T23:47:39.933Z","cvss":[{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:02:16.958223Z"}]}}