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Vulnerabilities / CVE-2018-7750

critical

CVE-2018-7750

python-paramiko: Authentication bypass in transport.py

Published Modified CWE 287
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GHSA9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Red Hat9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD, GHSA, Red Hat, Amazon, Oracle, Photon OS. Rated lower by Ubuntu (high).

Description

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.

Affected packages and fixed versions

SourcePackageFixed in
amazon linux 1python26-paramiko, python27-paramiko1.15.1-2.6.amzn1
Oracle Linux 6python-paramiko1.7.5-4.el6_9
Photon OS 1.0paramiko1.17.6-1.ph1
Photon OS 2.0paramiko2.1.5-1.ph2
pip::GitHub Security Advisory pipparamiko2.0.8, 2.1.5, 2.2.3, 2.3.2, 2.4.1, 1.18.5, 1.17.6
Red Hatpython-paramiko, python-paramiko-docno fix listed
alpine 3.11py3-paramiko2.4.1-r0
alpine 3.12py3-paramiko2.4.1-r0
alpine 3.13py3-paramiko2.4.1-r0
alpine 3.14py3-paramiko2.4.1-r0
alpine 3.15py3-paramiko2.4.1-r0
alpine 3.16py3-paramiko2.4.1-r0
Show all 36 entries from 34 sources
SourcePackageFixed in
amazon linux 1python26-paramiko1.15.1-2.6.amzn1
amazon linux 1python27-paramiko1.15.1-2.6.amzn1
Oracle Linux 6python-paramiko1.7.5-4.el6_9
Photon OS 1.0paramiko1.17.6-1.ph1
Photon OS 2.0paramiko2.1.5-1.ph2
pip::GitHub Security Advisory pipparamiko2.0.8, 2.1.5, 2.2.3, 2.3.2, 2.4.1, 1.18.5, 1.17.6
Red Hatpython-paramikono fix listed
Red Hatpython-paramiko-docno fix listed
alpine 3.11py3-paramiko2.4.1-r0
alpine 3.12py3-paramiko2.4.1-r0
alpine 3.13py3-paramiko2.4.1-r0
alpine 3.14py3-paramiko2.4.1-r0
alpine 3.15py3-paramiko2.4.1-r0
alpine 3.16py3-paramiko2.4.1-r0
alpine 3.17py3-paramiko2.4.1-r0
alpine 3.18py3-paramiko2.4.1-r0
alpine 3.19py3-paramiko2.4.1-r0
alpine 3.20py3-paramiko2.4.1-r0
alpine 3.21py3-paramiko2.4.1-r0
alpine 3.22py3-paramiko2.4.1-r0
alpine 3.23py3-paramiko2.4.1-r0
alpine 3.24py3-paramiko2.4.1-r0
alpine edgepy3-paramiko2.4.1-r0
debian 11paramiko2.4.2-0.1
debian 12paramiko2.4.2-0.1
debian 13paramiko2.4.2-0.1
debian 14paramiko2.4.2-0.1
debian 7paramikono fix listed
debian 8paramiko1.15.1-1+deb8u1
debian 9paramiko2.0.0-1+deb9u1
echoparamiko2.4.2-0.1
ubuntu 14.04paramiko1.10.1-1git1ubuntu0.1
ubuntu 14.04-ESMparamiko1.10.1-1git1ubuntu0.1
ubuntu 16.04paramiko1.16.0-1ubuntu0.1
ubuntu 16.04-ESMparamiko1.16.0-1ubuntu0.1
ubuntu 17.10paramiko2.0.0-1ubuntu0.1

References

All 34 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.