CVE-2023-42126 G DATA Total Security GDBackupSvc Service Link Following Local Privilege Escalation Vulnerability
Local attackers can escalate privileges to SYSTEM by exploiting a link following flaw in the GDBackupSvc service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-42126?
CVE-2023-42126 is a high-severity path traversal vulnerability in G DATA Total Security, published on 3 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-59
Which versions are affected by CVE-2023-42126?
It affects 1 product.
Products include Gdata-Software Total Security.
How do I fix CVE-2023-42126?
No fix has been published for CVE-2023-42126 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2023-42126 being exploited?
There is no known exploitation of CVE-2023-42126 in the wild and no public exploit code.
Other vulnerabilities in G DATA Total Security
- CVE-2018-10018 Memory corruption in n/a
- CVE-2024-1867 G DATA Total Security Link Following Local Privilege Escalation Vulnerability
- CVE-2024-1868 G DATA Total Security Link Following Local Privilege Escalation Vulnerability
- CVE-2024-30377 G DATA Total Security Scan Server Link Following Local Privilege Escalation Vulnerability
- CVE-2023-27347 G DATA Total Security Link Following Local Privilege Escalation Vulnerability
Sources
Also known as GHSA-rj6w-j3qm-r3rg.