CVE-2021-31226

EUVD-2021-18139
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 81%
Affected Products (NVD)
VendorProductVersion
hcc-embeddedinterniche
4.0.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
https://www.kb.cert.org/vuls/id/608209
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
https://www.kb.cert.org/vuls/id/608209