{
"id": "GHSA-232r-66cg-79px",
"aliases": [
"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.",
"summary": "Paramiko not properly checking authentication before processing other requests",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.0.8"
}
]
}
],
"package": {
"name": "paramiko",
"ecosystem": "PyPI"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "2.1.0"
},
{
"fixed": "2.1.5"
}
]
}
],
"package": {
"name": "paramiko",
"ecosystem": "PyPI"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "2.2.0"
},
{
"fixed": "2.2.3"
}
]
}
],
"package": {
"name": "paramiko",
"ecosystem": "PyPI"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.2"
}
]
}
],
"package": {
"name": "paramiko",
"ecosystem": "PyPI"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.4.1"
}
]
}
],
"package": {
"name": "paramiko",
"ecosystem": "PyPI"
},
"versions": [
"2.4.0"
]
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.18.0"
},
{
"fixed": "1.18.5"
}
]
}
],
"package": {
"name": "paramiko",
"ecosystem": "PyPI"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.17.6"
}
]
}
],
"package": {
"name": "paramiko",
"ecosystem": "PyPI"
}
}
],
"modified": "2026-06-09T12:59:24Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
}
],
"published": "2018-07-12T20:29:30Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-7750",
"type": "ADVISORY"
},
{
"url": "https://github.com/paramiko/paramiko/issues/1175",
"type": "WEB"
},
{
"url": "https://github.com/paramiko/paramiko/commit/fa29bd8446c8eab237f5187d28787727b4610516",
"type": "WEB"
},
{
"url": "https://github.com/paramiko/paramiko/commit/e9dfd854bdaf8af15d7834f7502a0451d217bb8c",
"type": "WEB"
},
{
"url": "https://www.exploit-db.com/exploits/45712",
"type": "WEB"
},
{
"url": "https://web.archive.org/web/20190831123128/http://www.securityfocus.com/bid/103713",
"type": "WEB"
},
{
"url": "https://usn.ubuntu.com/3603-2",
"type": "WEB"
},
{
"url": "https://usn.ubuntu.com/3603-1",
"type": "WEB"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00025.html",
"type": "WEB"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2018/10/msg00018.html",
"type": "WEB"
},
{
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/paramiko/PYSEC-2018-19.yaml",
"type": "WEB"
},
{
"url": "https://github.com/paramiko/paramiko/blob/master/sites/www/changelog.rst",
"type": "WEB"
},
{
"url": "https://github.com/paramiko/paramiko/blob/e861c7697622774071ce73b46ffe8817eacdedfa/sites/www/changelog.rst?plain=1#L759-L763",
"type": "WEB"
},
{
"url": "https://github.com/paramiko/paramiko",
"type": "PACKAGE"
},
{
"url": "https://github.com/advisories/GHSA-232r-66cg-79px",
"type": "ADVISORY"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:1972",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:1525",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:1328",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:1274",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:1213",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:1125",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:1124",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:0646",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:0591",
"type": "WEB"
},
{
"url": "http://www.securityfocus.com/bid/103713",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"severity": "CRITICAL",
"github_reviewed": true,
"nvd_published_at": "2018-03-13T18:29:00Z",
"github_reviewed_at": "2020-06-16T20:50:58Z"
}
}