PuTTY < 0.67 PSCP Server Header Handling Stack Buffer Overflow

critical Nessus Plugin ID 105154

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Synopsis

The remote Windows host has an SSH client that is affected by a buffer overflow vulnerability.

Description

The remote host has a version of PuTTY installed that is prior to 0.67. It is, therefore, affected by a stack-based buffer overflow related to handling SCP-SINK file-size responses that could allow arbitrary code execution.

Solution

Upgrade to PuTTY version 0.67 or later.

Plugin Details

Severity: Critical

ID: 105154

File Name: putty_067.nasl

Version: 1.5

Type: local

Agent: windows

Family: Windows

Published: 12/11/2017

Updated: 11/23/2018

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2016-2563

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: cpe:/a:simon_tatham:putty

Required KB Items: installed_sw/PuTTY, SMB/Registry/Enumerated

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/5/2016

Vulnerability Publication Date: 3/7/2016

Reference Information

CVE: CVE-2016-2563

BID: 84296

Detections

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