{"id":"CVE-2018-7750","details":"transport.py in the SSH server implementation of Paramiko before 1.17.6, 1.18.x before 1.18.5, 2.0.x before 2.0.8, 2.1.x before 2.1.5, 2.2.x before 2.2.3, 2.3.x before 2.3.2, and 2.4.x before 2.4.1 does not properly check whether authentication is completed before processing other requests, as demonstrated by channel-open. A customized SSH client can simply skip the authentication step.","aliases":["GHSA-232r-66cg-79px","PYSEC-2018-19"],"modified":"2026-06-14T18:29:16.021159213Z","published":"2018-03-13T18:29:00.303Z","related":["SUSE-FU-2022:0444-1","SUSE-FU-2022:0445-1","SUSE-SU-2018:0844-1","SUSE-SU-2018:0873-1","SUSE-SU-2018:1850-1","SUSE-SU-2018:1971-1","SUSE-SU-2018:2777-1","openSUSE-SU-2024:11249-1","openSUSE-SU-2026:11025-1"],"references":[{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/103713"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:0591"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:0646"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:1124"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:1125"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:1213"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:1274"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:1328"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:1525"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:1972"},{"type":"ADVISORY","url":"https://github.com/paramiko/paramiko/blob/master/sites/www/changelog.rst"},{"type":"ADVISORY","url":"https://github.com/paramiko/paramiko/commit/fa29bd8446c8eab237f5187d28787727b4610516"},{"type":"ADVISORY","url":"https://github.com/paramiko/paramiko/issues/1175"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2018/10/msg00018.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/12/msg00025.html"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3603-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3603-2/"},{"type":"ADVISORY","url":"https://www.exploit-db.com/exploits/45712/"},{"type":"REPORT","url":"https://github.com/paramiko/paramiko/issues/1175"},{"type":"FIX","url":"https://github.com/paramiko/paramiko/commit/fa29bd8446c8eab237f5187d28787727b4610516"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2018/10/msg00018.html"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2021/12/msg00025.html"},{"type":"EVIDENCE","url":"https://www.exploit-db.com/exploits/45712/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ansible/ansible","events":[{"introduced":"b599477242c44365236d4bae3e7766e37e6c4633"},{"fixed":"39ce8c6610ecaa1a5f992f76d4f868b2cce8fd39"},{"introduced":"cdec853e37d2342346f54e51f4ec4bfbd2ee0031"},{"fixed":"f5be18f409106f9450329bb8e58d60cd8d438f32"},{"introduced":"d56ba0945dbf6c787a3e7f3e17b3db657b9dcee4"},{"fixed":"c7052b42c76bc626c481f22018d3396b84199a24"}]}],"versions":["v2.2.0.0-1","v2.2.1.0-0.1.rc1","v2.2.1.0-0.2.rc2","v2.2.1.0-0.3.rc3","v2.2.1.0-0.4.rc4","v2.2.1.0-0.5.rc5","v2.2.1.0-1","v2.2.2.0-0.1.rc1","v2.2.2.0-0.2.rc2","v2.2.2.0-1","v2.2.3.0-0.1.rc1","v2.3.0.0-1","v2.3.1.0-0.1.rc1","v2.3.1.0-0.2.rc2","v2.3.1.0-1","v2.3.2.0-0.1.rc1","v2.3.2.0-0.2.rc2","v2.3.2.0-0.3.rc3","v2.3.2.0-0.4.rc4","v2.3.2.0-0.5.rc5"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-7750.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/paramiko/paramiko","events":[{"introduced":"0"},{"fixed":"fa29bd8446c8eab237f5187d28787727b4610516"}]}],"versions":["1.10.0","1.10.1","1.10.2","1.10.3","1.10.4","1.10.5","1.10.6","1.10.7","1.11.0","1.11.1","1.11.2","1.11.3","1.11.4","1.11.5","1.11.6","1.12.0","1.12.1","1.12.2","1.12.3","1.12.4","1.13.0","1.13.1","1.13.2","1.13.3","1.13.4","1.14.0","1.14.1","1.14.2","1.14.3","1.15.0","1.15.1","1.15.2","1.15.3","1.15.4","1.15.5","1.16.0","1.16.1","1.16.2","1.16.3","1.17.0","1.17.1","1.17.2","1.17.3","1.18.0","1.18.1","1.7.7.1","1.7.7.2","1.8.0","1.8.1","1.9.0","2.0.0","2.0.1","2.0.2","2.0.3","2.0.4","2.0.5","2.0.6","2.0.7","initial-merge-from-ssh-done","py3-test-parity","release-1.7.4","release-1.7.5","release-1.7.6","v1.10.0","v1.10.1","v1.10.2","v1.10.3","v1.10.4","v1.10.5","v1.10.6","v1.10.7","v1.11.0","v1.11.1","v1.11.2","v1.11.3","v1.11.4","v1.11.5","v1.11.6","v1.12.0","v1.12.1","v1.12.2","v1.12.3","v1.12.4","v1.13.0","v1.13.1","v1.13.2","v1.13.3","v1.13.4","v1.14.0","v1.14.1","v1.14.2","v1.14.3","v1.15.0","v1.15.1","v1.15.2","v1.15.3","v1.15.4","v1.15.5","v1.16.0","v1.16.1","v1.16.2","v1.16.3","v1.17.0","v1.17.1","v1.17.2","v1.17.3","v1.18.0","v1.18.1","v1.7.7.1","v1.7.7.2","v1.8.0","v1.8.1","v1.9.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-7750.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}