PuTTY < 0.56 Remote SSH2_MSG_DEBUG Buffer Overflow

medium Nessus Network Monitor Plugin ID 2371

Synopsis

The remote host is vulnerable to a buffer overflow.

Description

The remote host is using a vulnerable version of PuTTY, a SSH client built for Linux and UNIX variants as well as Microsoft Windows operating systems. It has been reported that PuTTY does not safely handle SSH2_MSG_DEBUG messages. As a result, an attacker may be able to exploit it by setting up a malicious SSH server.

Solution

Upgrade to PuTTY 0.56 or higher.

Plugin Details

Severity: Medium

ID: 2371

Family: SSH

Published: 10/28/2004

Updated: 3/6/2019

Risk Information

VPR

Risk Factor: Medium

Score: 5.8

CVSS v2

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 3.8

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:P

CVSS v3

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 4.9

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:putty:putty

Reference Information

CVE: CVE-2004-1008

BID: 11549