CVE-2023-42757

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.

Category

4.2
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.05%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.safebreach.com/blog/magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces/
https://github.com/SafeBreach-Labs/MagicDot
https://www.blackhat.com/asia-24/briefings/schedule/#magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces-36561

Frequently Asked Questions

What is the severity of CVE-2023-42757?
CVE-2023-42757 has been scored as a medium severity vulnerability.
How to fix CVE-2023-42757?
To fix CVE-2023-42757, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-42757 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-42757 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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