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: 2004/10/28

Modified: 2016/11/23

Dependencies: 1968

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5.1

Temporal Score: 5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSSv3

Base Score: 5.6

Temporal Score: 4.9

Vector: CVSS3#AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Temporal Vector: CVSS3#E:U/RL:O/RC:C

Reference Information

CVE: CVE-2004-1008

BID: 11549