// For flags

CVE-2023-27347

G DATA Total Security Link Following Local Privilege Escalation Vulnerability

Severity Score

7.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

G DATA Total Security 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 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. Was ZDI-CAN-18749.

Enlace de seguridad total de G DATA tras vulnerabilidad de escalada de privilegios locales. Esta vulnerabilidad permite a atacantes locales escalar privilegios en las instalaciones afectadas de G Data Total Security. Un atacante primero debe obtener la capacidad de ejecutar código con pocos privilegios en el sistema de destino para poder aprovechar esta vulnerabilidad. El fallo específico existe en el servicio de copia de seguridad de G DATA. Al crear un enlace simbólico, un atacante puede abusar del servicio para crear archivos arbitrarios. Un atacante puede aprovechar esta vulnerabilidad para escalar privilegios y ejecutar código arbitrario en el contexto de SYSTEM. Era ZDI-CAN-18749.

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.

*Credits: Dennis Herrmann (@dhn_)
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2023-02-28 CVE Reserved
  • 2023-04-05 CVE Published
  • 2024-05-03 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-59: Improper Link Resolution Before File Access ('Link Following')
CAPEC
References (1)
URL Tag Source
https://www.zerodayinitiative.com/advisories/ZDI-23-379 X_research Advisory
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
G DATA
Search vendor "G DATA"
 Total Security
Search vendor "G DATA" for product "Total Security"
 25.5.12.833
Search vendor "G DATA" for product "Total Security" and version "25.5.12.833"
en
Affected