Advisory Details

April 5th, 2023

G DATA Total Security Link Following Local Privilege Escalation Vulnerability

CVE ID	CVE-2023-27347
CVSS SCORE	7.8, AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	G DATA
AFFECTED PRODUCTS	Total Security
VULNERABILITY DETAILS	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 G DATA Backup Service. By creating a symbolic link, an attacker can abuse the service to create arbitrary files. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.
ADDITIONAL DETAILS	Fixed in version is 25.5.13.26
DISCLOSURE TIMELINE	2022-10-26 - Vulnerability reported to vendor 2023-04-05 - Coordinated public release of advisory 2023-12-07 - Advisory Updated
CREDIT	Dennis Herrmann (@dhn_)

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