CVE-2021-31226 — CRITICAL (9.8)

Vulnerability 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.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Hcc-Embedded	Interniche	4.0.1

Related Weaknesses (CWE)

CWE-787

References

https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilitiMitigationThird Party Advisory
https://www.kb.cert.org/vuls/id/608209Third Party AdvisoryUS Government Resource
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilitiMitigationThird Party Advisory
https://www.kb.cert.org/vuls/id/608209Third Party AdvisoryUS Government Resource

FAQ

What is CVE-2021-31226?

CVE-2021-31226 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 requ...

How severe is CVE-2021-31226?

CVE-2021-31226 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-31226?

Check the references section above for vendor advisories and patch information. Affected products include: Hcc-Embedded Interniche.