{"id":"CVE-2007-0844","aliases":["DEBIAN-CVE-2007-0844","EUVD-2007-0841","GHSA-rqfq-63f3-qjmw"],"status":"published","title":"The auth_via_key function in pam_ssh.c in pam_ssh before 1.92, when the allow_blank_passphrase...","description":"The auth_via_key function in pam_ssh.c in pam_ssh before 1.92, when the allow_blank_passphrase option is disabled, allows remote attackers to bypass authentication restrictions and use private encryption keys requiring a blank passphrase by entering a non-blank passphrase.","severity":{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00882,"percentile":0.59391,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2007-02-08T17:00:00Z","modified":"2026-10-21T17:47:50Z","fixes":[{"ecosystem":"Debian:13","package":"libpam-ssh","fixed_in":["1.91.0-9.2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libpam-ssh","fixed_in":["1.91.0-9.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:13","package":"libpam-ssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.91.0-9.2"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"libpam-ssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.91.0-9.2"}]}]}],"products":[{"vendor":"pam_ssh","product":"pam_ssh"}],"references":[{"url":"http://www.securityfocus.com/bid/22461","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://secunia.com/advisories/24061","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.vupen.com/english/advisories/2007/0524","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://sourceforge.net/project/shownotes.php?release_id=484376","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","advisory","fix"]},{"url":"http://osvdb.org/33119","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2007-0844"},{"url":"https://github.com/advisories/GHSA-rqfq-63f3-qjmw"},{"url":"https://security-tracker.debian.org/tracker/CVE-2007-0844","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2007-0844","description":"The auth_via_key function in pam_ssh.c in pam_ssh before 1.92, when the allow_blank_passphrase option is disabled, allows remote attackers to bypass authentication restrictions and use private encryption keys requiring a blank passphrase by entering a non-blank passphrase.","status":"published","published":"2007-02-08T17:00:00Z","modified":"2024-08-07T12:34:21.122Z","updated_at":"2026-11-02T13:34:03.879328Z"}],"euvd":[{"id":"EUVD-2007-0841","description":"The auth_via_key function in pam_ssh.c in pam_ssh before 1.92, when the allow_blank_passphrase option is disabled, allows remote attackers to bypass authentication restrictions and use private encryption keys requiring a blank passphrase by entering a non-blank passphrase.","status":"published","published":"2007-02-08T17:00:00Z","modified":"2024-08-07T12:34:21Z","updated_at":"2026-11-03T01:38:28.771987Z"}],"ghsa":[{"id":"GHSA-rqfq-63f3-qjmw","title":"The auth_via_key function in pam_ssh.c in pam_ssh before 1.92, when the allow_blank_passphrase...","description":"The auth_via_key function in pam_ssh.c in pam_ssh before 1.92, when the allow_blank_passphrase option is disabled, allows remote attackers to bypass authentication restrictions and use private encryption keys requiring a blank passphrase by entering a non-blank passphrase.","status":"published","published":"2022-05-01T17:47:30Z","modified":"2023-01-31T05:03:06Z","updated_at":"2026-11-02T14:48:24.116172Z"}],"nvd":[{"id":"CVE-2007-0844","description":"The auth_via_key function in pam_ssh.c in pam_ssh before 1.92, when the allow_blank_passphrase option is disabled, allows remote attackers to bypass authentication restrictions and use private encryption keys requiring a blank passphrase by entering a non-blank passphrase.","status":"published","published":"2007-02-08T17:28:00Z","modified":"2026-06-16T22:36:24.04Z","cvss":[{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:13.10493Z"}],"osv":[{"id":"CVE-2007-0844","description":"The auth_via_key function in pam_ssh.c in pam_ssh before 1.92, when the allow_blank_passphrase option is disabled, allows remote attackers to bypass authentication restrictions and use private encryption keys requiring a blank passphrase by entering a non-blank passphrase.","status":"published","published":"2007-02-08T17:28:00Z","modified":"2026-04-10T03:38:02.064113Z","updated_at":"2026-11-02T15:43:56.865964Z"},{"id":"DEBIAN-CVE-2007-0844","description":"The auth_via_key function in pam_ssh.c in pam_ssh before 1.92, when the allow_blank_passphrase option is disabled, allows remote attackers to bypass authentication restrictions and use private encryption keys requiring a blank passphrase by entering a non-blank passphrase.","status":"published","published":"2007-02-08T17:28:00Z","modified":"2026-10-21T17:47:50.651555556Z","updated_at":"2026-11-02T15:45:23.105674Z"}]}}