CVE-2023-42126 HIGH

CVE-2023-42126: G DATA Total Security GDBackupSvc Service Link Following Local Privilege Escalation Vulnerability

Vendor G Data
Product Total Security
Weakness CWE-59
Published May 3, 2024
Last update August 2, 2024

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

G DATA Total Security GDBackupSvc Service Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of G Data Total Security. 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 GDBackupSvc service. By creating a symbolic link, an attacker can abuse the service to create a file with a permissive DACL. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-20694.

Key dates

02Disclosure timeline

May 3, 2024 CVE published
August 2, 2024 Record updated