Insecure DLL loading in TeamViewer Remote Full Client for Windows - CVE-2021-34803
Published: November 8, 2021
Vulnerability identifier: #VU57975
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-34803
CWE-ID: CWE-427
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to the application loads DLL libraries in an insecure manner. A remote attacker can place a specially crafted .dll file, trick the victim into opening a file, associated with the vulnerable application, and execute arbitrary code on victim's system.
Affected software
TeamViewer Remote Full Client for Windows
VBASE Pro-RT/ Server-RT (Web Remote)
VBASE Pro-RT/ Server-RT (Web Remote)
How to mitigate CVE-2021-34803
Install updates from vendor's website.
TeamViewer Remote Full Client for Windows - update to 14.7.48644
VBASE Pro-RT/ Server-RT (Web Remote) - update to 11.7.0.2
VBASE Pro-RT/ Server-RT (Web Remote) - update to 11.7.0.2