Advisory Details

September 26th, 2024

TeamViewer Missing Authentication Local Privilege Escalation Vulnerability

ZDI-24-1290
ZDI-CAN-24740

CVE ID CVE-2024-7481
CVSS SCORE 8.8, AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
AFFECTED VENDORS TeamViewer
AFFECTED PRODUCTS TeamViewer
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected installations of TeamViewer. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the TeamViewer service, which listens on TCP port 5939 by default. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

ADDITIONAL DETAILS TeamViewer has issued an update to correct this vulnerability. More details can be found at:
https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2024-1006/
DISCLOSURE TIMELINE
  • 2024-08-01 - Vulnerability reported to vendor
  • 2024-09-26 - Coordinated public release of advisory
  • 2024-09-26 - Advisory Updated
CREDIT Peter Gabaldon (https://pgj11.com/)
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