CVE-2021-31226

Description

An issue was discovered in HCC embedded InterNiche 4.0.1. A potential heap buffer overflow exists in the code that parses the HTTP POST request, due to lack of size validation. This vulnerability requires the attacker to send a crafted HTTP POST request with a URI longer than 50 bytes. This leads to a heap overflow in wbs_post() via an strcpy() call.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.79% Top 30%
Third-Party Advisory cert.org Third-Party Advisory forescout.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ third party advisory mitigation
https://www.kb.cert.org/vuls/id/608209 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2021-31226?
CVE-2021-31226 has been scored as a critical severity vulnerability.
How to fix CVE-2021-31226?
To fix CVE-2021-31226, 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-2021-31226 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-31226 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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