CVE-2018-7749
CRITICAL9.8EPSS 0.39%AsyncSSH SSH Server Authentication Bypass
Published: 5/14/2022Modified: 2/16/2025
Description
The SSH server implementation of AsyncSSH before 1.12.1 does not properly check whether authentication is completed before processing other requests. A customized SSH client can simply skip the authentication step.
Affected packages (3)
- Debian/python-asyncsshfrom 0, < 1.12.1-1
- PyPI/asyncsshfrom 0, < 1.12.1
- PyPI/asyncsshfrom 0, < c161e26cdc0d41b745b63d9f17b437f073bf7ba4 | from 0, < 1.12.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | 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 |
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
References (7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2018-7749
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2018-7749
- PATCHhttps://github.com/ronf/asyncssh
- WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/asyncssh/PYSEC-2018-108.yaml
- WEBhttps://github.com/ronf/asyncssh/commit/16e6ebfa893167c7d9d3f6dc7a2c0d197e47f43a
- WEBhttps://github.com/ronf/asyncssh/commit/c161e26cdc0d41b745b63d9f17b437f073bf7ba4
- WEBhttps://groups.google.com/forum/#!msg/asyncssh-announce/57_5O7kiHSA/8BXZ_hxHAQAJ