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CVE-2021-42056

MEDIUMCVSS 6.7/10EPSS 1.02%

Last modified

CVE-2021-42056 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. 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.. EPSS estimates a 1.02% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
6.7/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.02%

59.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
ThalesgroupSafenet Authentication Client<= 10.7.7

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-42056?
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.
How severe is CVE-2021-42056?
CVE-2021-42056 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 1.02% probability of exploitation in the next 30 days.
How do I fix CVE-2021-42056?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-42056?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST