{"id":"CVE-2012-5975","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-5975","generatedAt":"2026-10-27T17:57:29.797Z","title":"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…","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.","published":"2012-12-04T23:55:01.000Z","lastModified":"2026-06-16T23:47:40.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":9.3,"severity":"HIGH","vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C"},"cwe":["CWE-287"],"affected":["ssh/tectia server"],"epss":{"score":0.35874,"percentile":0.98457,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":2,"verified":true,"firstPublished":"2012-12-02","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":23156,"kind":"exploit","title":"(SSH.com Communications) SSH Tectia - USERAUTH Change Request Password Reset (Metasploit)","url":"https://www.exploit-db.com/exploits/23156","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/unix/remote/23156.rb","file":"exploits/unix/remote/23156.rb","published":"2012-12-05","added":"2012-12-05","updated":"2016-10-27","author":"Metasploit","type":"remote","platform":"unix","port":null,"verified":true,"codes":["CVE-2012-5975","OSVDB-88103"],"tags":"Metasploit Framework (MSF)","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null},{"edbId":23082,"kind":"exploit","title":"(SSH.com Communications) SSH Tectia (SSH < 2.0-6.1.9.95 / Tectia 6.1.9.95) - Remote Authentication Bypass","url":"https://www.exploit-db.com/exploits/23082","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/remote/23082.txt","file":"exploits/linux/remote/23082.txt","published":"2012-12-02","added":"2012-12-02","updated":"2012-12-05","author":"kingcope","type":"remote","platform":"linux","port":null,"verified":true,"codes":["CVE-2012-5975","OSVDB-88103"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 35.9%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2012-12/0013.html","source":"cve@mitre.org"},{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2012-12/0065.html","source":"cve@mitre.org"},{"url":"http://www.exploit-db.com/exploits/23082/","source":"cve@mitre.org"},{"url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/ssh/tectia_passwd_changereq.rb","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2012-12/0013.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2012-12/0065.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.exploit-db.com/exploits/23082/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/ssh/tectia_passwd_changereq.rb","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-5975","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}