G Data Total Security GDBackupSvc Service link following

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in G Data Total Security and classified as critical. Impacted is an unknown function of the component GDBackupSvc Service. The manipulation leads to link following. This vulnerability is documented as CVE-2023-42126. The attack needs to be performed locally. There is not any exploit available.

Detailsinfo

A vulnerability was found in G Data Total Security (the affected version unknown) and classified as critical. This issue affects an unknown part of the component GDBackupSvc Service. The manipulation with an unknown input leads to a link following vulnerability. Using CWE to declare the problem leads to CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was released 09/30/2023 as ZDI-23-1493. It is possible to read the advisory at zerodayinitiative.com. The identification of this vulnerability is CVE-2023-42126 since 09/06/2023. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/06/2023 🔍
09/30/2023 +24 days 🔍
09/30/2023 +0 days 🔍
08/18/2025 +688 days 🔍

Sourcesinfo

Advisory: ZDI-23-1493
Status: Not defined

CVE: CVE-2023-42126 (🔍)
GCVE (CVE): GCVE-0-2023-42126
GCVE (VulDB): GCVE-100-240971

Entryinfo

Created: 09/30/2023 14:47
Updated: 08/18/2025 17:50
Changes: 09/30/2023 14:47 (37), 08/18/2025 17:50 (27)
Complete: 🔍
Cache ID: 216::103

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