SB2024092676 - Multiple privilege escalation vulnerabilities in TeamViewer

Description

This security bulletin contains information about 2 vulnerabilities.

1) Missing Authorization (CVE-ID: CVE-2024-7479)

CWE-ID: CWE-862 - Missing Authorization

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to missing authorization during installation of a VPN driver via the TeamViewer_service.exe component, which listens on TCP port 5939. A local user can access the component and execute arbitrary code with elevated privileges.

2) Missing Authorization (CVE-ID: CVE-2024-7481)

CWE-ID: CWE-862 - Missing Authorization

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to missing authorization during installation of a Printer driver via the TeamViewer_service.exe, which listens on TCP port 5939. A local user can access the component and execute arbitrary code with elevated privileges.

Remediation

Install update from vendor's website.

References

• https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2024-1006/
• https://www.zerodayinitiative.com/advisories/ZDI-24-1289/
• https://www.zerodayinitiative.com/advisories/ZDI-24-1290/