#VU22562 Improper control of interaction frequency in TeamViewer Remote Full Client for Windows - CVE-2018-16550
Published: November 6, 2019 / Updated: November 7, 2019
Vulnerability identifier: #VU22562
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2018-16550
CWE-ID: CWE-799
Exploitation vector: Remote access
Exploit availability:
No public exploit 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 perform a brute-force attack on the target system.
The vulnerability exists due to the application does not implement sufficient measures to prevent multiple failed authentication attempts. A remote attacker can bypass the brute-force authentication protection mechanism by skipping the "Cancel" step, which makes it easier to determine the correct value of the default 4-digit PIN.
Remediation
Note: This vulnerability affects TeamViewer versions 10.x through 13.x. Install updates from vendor's website.