{"id":"CVE-2016-6210","details":"sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remote attackers to enumerate users by leveraging the timing difference between responses when a large password is provided.","modified":"2026-04-01T23:53:21.890231Z","published":"2017-02-13T17:59:00.153Z","related":["MGASA-2016-0280","SUSE-SU-2016:2280-1","SUSE-SU-2016:2281-1","SUSE-SU-2016:2388-1","SUSE-SU-2016:2555-1","openSUSE-SU-2024:10174-1"],"references":[{"type":"WEB","url":"http://www.securitytracker.com/id/1036319"},{"type":"WEB","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"},{"type":"WEB","url":"https://www.exploit-db.com/exploits/40113/"},{"type":"WEB","url":"https://www.exploit-db.com/exploits/40136/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201612-18"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20190206-0001/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:2029"},{"type":"ADVISORY","url":"https://www.openssh.com/txt/release-7.3"},{"type":"ADVISORY","url":"http://seclists.org/fulldisclosure/2016/Jul/51"},{"type":"ADVISORY","url":"http://www.debian.org/security/2016/dsa-3626"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/91812"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:2563"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openssh/openssh-portable","events":[{"introduced":"0"},{"fixed":"99522ba7ec6963a05c04a156bf20e3ba3605987c"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"7.3"}]}}],"versions":["ABOUT_TO_ADD_INET_ATON","AFTER_FREEBSD_PAM_MERGE","AFTER_KRB5_GSSAPI_MERGE","BEFORE_FREEBSD_PAM_MERGE","BEFORE_KRB5_GSSAPI_MERGE","POST_KRB4_REMOVAL","PRE-REORDER","PRE_CYGWIN_MERGE","PRE_DAN_PATCH_MERGE","PRE_FIXPATHS_INTEGRATION","PRE_HPUX_INTEGRATION","PRE_IPV6","PRE_KRB4_REMOVAL","PRE_NEW_LOGIN_CODE","PRE_SW_KRBV","V_1_2PRE17","V_1_2_1_PRE18","V_1_2_1_PRE19","V_1_2_1_PRE20","V_1_2_1_PRE21","V_1_2_1_PRE22","V_1_2_1_PRE23","V_1_2_1_PRE24","V_1_2_1_PRE25","V_1_2_1_PRE26","V_1_2_1_PRE27","V_1_2_2","V_1_2_2_P1","V_1_2_2_PRE28","V_1_2_2_PRE29","V_1_2_3","V_1_2_3_PRE1","V_1_2_3_PRE2","V_1_2_3_PRE3","V_1_2_3_PRE4","V_1_2_3_PRE5","V_1_2_3_TEST1","V_1_2_3_TEST2","V_1_2_3_TEST3","V_1_2_PRE10","V_1_2_PRE11","V_1_2_PRE12","V_1_2_PRE13","V_1_2_PRE14","V_1_2_PRE15","V_1_2_PRE16","V_1_2_PRE3","V_1_2_PRE4","V_1_2_PRE5","V_1_2_PRE6","V_1_2_PRE7","V_1_2_PRE8","V_1_2_PRE9","V_2_0_0_BETA1","V_2_0_0_BETA2","V_2_0_0_TEST1","V_2_1_0","V_2_1_0_P1","V_2_1_0_P2","V_2_1_0_P3","V_2_1_1_P1","V_2_1_1_P2","V_2_1_1_P3","V_2_1_1_P4","V_2_2_0_P1","V_2_3_0_P1","V_2_5_0_P1","V_2_5_1_P1","V_2_5_1_P2","V_2_5_2_P1","V_2_5_2_P2","V_2_9_9_P1","V_2_9_9_P2","V_2_9_P2","V_3_0_1_P1","V_3_0_2_P1","V_3_0_P1","V_3_1_P1","V_3_2_2_P1","V_3_2_3_P1","V_3_3_P1","V_3_4_P1","V_3_5_P1","V_3_6_1_P1","V_3_6_1_P2","V_3_6_P1","V_3_7_1_P1","V_3_7_1_P2","V_3_7_P1","V_3_8_1_P1","V_3_8_P1","V_3_9_P1","V_4_0_P1","V_4_1_P1","V_4_2_P1","V_4_3_P1","V_4_3_P2","V_4_4_P1","V_4_5_P1","V_4_6_P1","V_4_7_P1","V_4_9_P1","V_5_0_P1","V_5_1_P1","V_5_2_P1","V_5_3_P1","V_5_4_P1","V_5_5_P1","V_5_6_P1","V_5_7_P1","V_5_8_P1","V_5_8_P2","V_5_9_P1","V_6_0_P1","V_6_1_P1","V_6_2_P1","V_6_2_P2","V_6_3_P1","V_6_4_P1","V_6_5_P1","V_6_6_P1","V_6_7_P1","V_6_8_P1","V_6_9_P1","V_7_0_P1","V_7_1_P1","V_7_1_P2","V_7_2_P1","V_7_2_P2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-6210.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"7.2"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}