Paramiko CVE-2018-7750 Authentication Bypass Vulnerability

Bugtraq ID:	103713
Class:	Design Error
CVE:	CVE-2018-7750
Remote:	Yes
Local:	No
Published:	Mar 13 2018 12:00AM
Updated:	Aug 23 2018 04:00AM
Credit:	Matthijs Kooijman
Vulnerable:	Ubuntu Ubuntu Linux 17.10 Ubuntu Ubuntu Linux 16.04 LTS Ubuntu Ubuntu Linux 14.04 LTS Ubuntu Ubuntu Linux 12.04 ESM Redhat Satellite 6 Redhat RHEV-M 4.0 Redhat OpenStack Platform 12 Redhat OpenStack Platform 11 Redhat OpenStack Platform 10 Redhat OpenShift Enterprise 3.0 Redhat Gluster Storage 3.0 Redhat Enterprise Linux Server 7 Redhat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 Redhat Enterprise Linux for Power, little endian 7 Redhat Enterprise Linux for Power 9 7 Redhat Enterprise Linux 6 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Redhat Ceph Storage 2 Redhat Ansible Engine For RHEL 7 2.4 Redhat Ansible Engine 2 paramiko paramiko 2.4 paramiko paramiko 2.3.1 paramiko paramiko 2.3 paramiko paramiko 2.2.2 paramiko paramiko 2.2 paramiko paramiko 2.1.4 paramiko paramiko 2.1 paramiko paramiko 2.0.7 paramiko paramiko 2.0 paramiko paramiko 1.18.4 paramiko paramiko 1.18 paramiko paramiko 1.17.5 paramiko paramiko 1.17 paramiko paramiko 1.16 paramiko paramiko 1.15 paramiko paramiko 1.14 paramiko paramiko 1.13 paramiko paramiko 1.12 paramiko paramiko 1.11 paramiko paramiko 1.10 Oracle Linux 7.0
Not Vulnerable:	paramiko paramiko 2.4.1 paramiko paramiko 2.3.2 paramiko paramiko 2.2.3 paramiko paramiko 2.1.5 paramiko paramiko 2.0.8 paramiko paramiko 1.18.5 paramiko paramiko 1.17.6

Paramiko CVE-2018-7750 Authentication Bypass Vulnerability

Paramiko is prone to an authentication-bypass vulnerability.

An attacker can exploit this issue to bypass the authentication mechanism. This may aid in further attacks.

Versions prior to Paramiko 1.17.6, 1.18.x through 1.18.4, 2.0.x through 2.0.7, 2.1.x through 2.1.4, 2.2.x through 2.2.2, 2.3.x through 2.3.1, and 2.4.0 are vulnerable.

Paramiko CVE-2018-7750 Authentication Bypass Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Paramiko CVE-2018-7750 Authentication Bypass Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

Paramiko CVE-2018-7750 Authentication Bypass Vulnerability

References:

• Fixes CVE-2018-7750 / #1175 (Paramiko)
  
• Paramiko Changelog (Paramiko)
  
• Paramiko Homepage (Paramiko)
  
• Server implementation does not check for auth before serving later requests #117 (Paramiko)
  
• Bug 1557130 CVE-2018-7750 python-paramiko: Authentication bypass in transport.py (Redhat)
  
• CVE-2018-7750 (Redhat)
  
• openSUSE-SU-2018:0799-1: important: Security update for python-paramiko (SUSE)
  
• Oracle Linux Bulletin - April 2018 (Oracle)
  
• RHSA-2018:0591 - Security Advisory (Redhat)
  
• RHSA-2018:0646 - Security Advisory (Redhat)
  
• SA43860 - 2018-08 Out-of-Cycle Advisory: Pulse One On-Premise Authentication byp (Pulse Secure)
  
• USN-3603-1: Paramiko vulnerability (Ubuntu)
  
• USN-3603-2: Paramiko vulnerability (Ubuntu)