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CVE-2023-42757

4.2 · MEDIUM

Process Explorer before 17.04 allows attackers to make it functionally unavailable (a denial of service for analysis) by renaming an executable file to a new extensionless 255-character name and la…

Published May 7, 2024CWE-120EPSS 0.27%

Overview

CVE-2023-42757 is a medium-severity vulnerability. It was published on May 7, 2024 and has a CVSS 3.1 base score of 4.2 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.2, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Process Explorer before 17.04 allows attackers to make it functionally unavailable (a denial of service for analysis) by renaming an executable file to a new extensionless 255-character name and launching it with NtCreateUserProcess. This can occur through an issue in wcscat_s error handling.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/SafeBreach-Labs/MagicDotRefwww.blackhat.com/asia-24/briefings/schedule/#magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces-36561Refwww.safebreach.com/blog/magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces/GitHubgithub.com/SafeBreach-Labs/MagicDotRefwww.blackhat.com/asia-24/briefings/schedule/#magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces-36561Refwww.safebreach.com/blog/magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces/

How CyberStrike helps

Frequently asked questions

What is CVE-2023-42757?

CVE-2023-42757 is a medium-severity vulnerability. It was published on May 7, 2024 and has a CVSS 3.1 base score of 4.2 (MEDIUM).

How severe is CVE-2023-42757?

This vulnerability has a CVSS 3.1 base score of 4.2, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-42757?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-42757?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-42757 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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