CVE-2018-7750

Impact:
Critical
Public Date:
2018-03-13
CWE:
CWE-287
Bugzilla:
1557130: CVE-2018-7750 python-paramiko: Authentication bypass in transport.py
It was found that when acting as an SSH server, paramiko did not properly check whether authentication is completed before processing other requests. A customized SSH client could use this to bypass authentication when accessing any resources controlled by paramiko.

Find out more about CVE-2018-7750 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This flaw is a user authentication bypass in the SSH Server functionality of paramiko (normally used by subclassing paramiko.ServerInterface). Where paramiko is used only for its client-side functionality (e.g. paramiko.SSHClient), the vulnerability is not exposed and thus cannot be exploited.

The following Red Hat products use paramiko only in client-side mode. Server side functionality is not used.
* Red Hat Ceph Storage 2
* Red Hat CloudForms 4
* Red Hat Enterprise Virtualization
* Red Hat Gluster Storage 3
* Red Hat Openshift Container Platform
* Red Hat Quick Cloud Installer
* Red Hat Satellite 6
* Red Hat Storage Console 2
* Red Hat OpenStack Platform

CVSS v3 metrics

CVSS3 Base Score 9.8
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact High

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux Advanced Update Support 6.4 (python-paramiko) RHSA-2018:1125 2018-04-12
Red Hat Enterprise Linux Extended Update Support 6.7 (python-paramiko) RHSA-2018:1125 2018-04-12
Red Hat Enterprise Linux 7 Extras (python-paramiko) RHSA-2018:0591 2018-03-26
Red Hat Enterprise Linux Server TUS (v. 6.6) (python-paramiko) RHSA-2018:1125 2018-04-12
CloudForms Management Engine 5.8 RHSA-2018:1972 2018-06-25
Red Hat Ansible Engine 2.4 for RHEL 7 Server (python-paramiko) RHSA-2018:1213 2018-04-24
Red Hat Enterprise Linux Advanced Update Support 6.6 (python-paramiko) RHSA-2018:1125 2018-04-12
Red Hat Enterprise Linux 6 (python-paramiko) RHSA-2018:1124 2018-04-12
Red Hat Ansible Engine 2 for RHEL 7 (python-paramiko) RHSA-2018:0646 2018-04-05
Red Hat Virtualization 4 (python-paramiko) RHSA-2018:1274 2018-05-02
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts (rhvm-appliance) RHSA-2018:1525 2018-05-15
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts (python-paramiko) RHSA-2018:1274 2018-05-02
Red Hat Enterprise Linux Advanced Update Support 6.5 (python-paramiko) RHSA-2018:1125 2018-04-12
CloudForms Management Engine 5.9 RHSA-2018:1328 2018-05-07

Affected Packages State

Platform Package State
Red Hat Storage Console 2 python-paramiko Will not fix
Red Hat Satellite 6 python-paramiko Affected
Red Hat OpenStack Platform 9.0 python-paramiko Will not fix
Red Hat OpenStack Platform 8.0 (Liberty) python-paramiko Will not fix
Red Hat OpenStack Platform 13 python-paramiko Affected
Red Hat OpenStack Platform 12.0 python-paramiko Will not fix
Red Hat OpenStack Platform 11.0 (Ocata) python-paramiko Will not fix
Red Hat OpenStack Platform 10 python-paramiko Will not fix
Red Hat OpenShift Enterprise 3 python-paramiko Affected
Red Hat Gluster Storage 3 python-paramiko Affected
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 python-paramiko Will not fix
Red Hat Ceph Storage 2 python-paramiko Affected

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