CVE-2017-5243 Information

Description

The default SSH configuration in Rapid7 Nexpose hardware appliances shipped before June 2017 does not specify desired algorithms for key exchange and other important functions. As a result it falls back to allowing ALL algorithms supported by the relevant version of OpenSSH and makes the installations vulnerable to a range of MITM downgrade and decryption attacks.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Reference

https://community.rapid7.com/community/nexpose/blog/2017/05/31/r7-2017-13-nexpose-hardware-appliance-ssh-enabled-obsolete-algorithms-cve-2017-5243

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.5