TeamViewer Insecure Directory Permissions Privilege Escalation

high Nessus Plugin ID 135708

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Synopsis

The remote Windows host contains a program that is affected by a privilege escalation vulnerability.

Description

The version of TeamViewer Desktop installed on the remote Windows host upto 14.7.1965 allows a bypass of remote-login access control where different customers' used a shared AES key for all installations. Attacker can used the said key to decrypt protected information stored in the registry or configuration files of TeamViewer. For versions before v9.x , attackers are allowed to decrypt the Unattended Access password to the system (that allows for remote login to the system as well as headless file browsing).

Solution

Upgrade to version 14.7.13736 or later.

Plugin Details

Severity: High

ID: 135708

File Name: teamviewer_14_7_13736.nasl

Version: 1.6

Type: local

Agent: windows

Family: Windows

Published: 4/17/2020

Updated: 4/25/2023

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.6

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

CVSS Score Source: CVE-2019-18988

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/a:teamviewer:teamviewer

Required KB Items: SMB/TeamViewer/Installed, installed_sw/TeamViewer/

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/12/2019

Vulnerability Publication Date: 2/3/2020

CISA Known Exploited Vulnerability Due Dates: 5/3/2022

Reference Information

CVE: CVE-2019-18988

CWE: 287

Detections

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