Thales Safenet Authentication Client up to 10.7.7 on Linux/Windows Lock File symlink

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Thales Safenet Authentication Client up to 10.7.7 on Linux/Windows. This issue affects some unknown processing of the component Lock File Handler. The manipulation results in symlink. This vulnerability is cataloged as CVE-2021-42056. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Thales Safenet Authentication Client up to 10.7.7 on Linux/Windows. Affected is an unknown function of the component Lock File Handler. The manipulation with an unknown input leads to a symlink vulnerability. CWE is classifying the issue as CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Thales Safenet Authentication Client (SAC) for Linux and Windows through 10.7.7 creates insecure temporary hid and lock files allowing a local attacker, through a symlink attack, to overwrite arbitrary files, and potentially achieve arbitrary command execution with high privileges.

The weakness was shared 06/25/2022. The advisory is available at github.com. This vulnerability is traded as CVE-2021-42056 since 10/07/2021. The technical details are unknown and an exploit is not available.

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

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Symlink
CWE: CWE-61 / CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

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

10/07/2021 🔍
06/25/2022 +261 days 🔍
06/25/2022 +0 days 🔍
07/15/2022 +20 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2021-42056 (🔍)
GCVE (CVE): GCVE-0-2021-42056
GCVE (VulDB): GCVE-100-202734

Entryinfo

Created: 06/25/2022 07:46
Updated: 07/15/2022 08:54
Changes: 06/25/2022 07:46 (39), 07/15/2022 08:54 (18)
Complete: 🔍
Cache ID: 216::103

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