CVE-2019-18988: TeamViewer Desktop Bypass Remote Login Vulnerability

CISA Known Exploited Vulnerability (KEV)

Description

TeamViewer Desktop allows for bypass of remote-login access control because the same AES key is used for different customers' installations. If an attacker were to know this key, they could decrypt protected information stored in registry or configuration files or decryption of the Unattended Access password to the system (which allows for remote login to the system).

Required action (CISA)

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2019-18988

Weakness behind it

CISA records this vulnerability as an instance of CWE-521. From there the chain continues into CAPEC attack patterns and ATT&CK techniques, all inside this corpus.

References

• NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-18988
• KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog