CVE-2023-42126 — HIGH (7.8)

Vulnerability 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.

CVSS Score

7.8

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Gdata-Software	Total Security	25.5.14.95

Related Weaknesses (CWE)

CWE-59

References

https://www.zerodayinitiative.com/advisories/ZDI-23-1493/Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-1493/Third Party Advisory

FAQ

What is CVE-2023-42126?

CVE-2023-42126 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 ...

How severe is CVE-2023-42126?

CVE-2023-42126 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-42126?

Check the references section above for vendor advisories and patch information. Affected products include: Gdata-Software Total Security.