VDB
CVE-2021-31227
CVE-2021-31227
PUBLISHED
CVSS 7.5 HIGH
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 an incorrect signed integer comparison. This vulnerability requires the attacker to send a malformed HTTP packet with a negative Content-Length, which bypasses the size checks and results in a large heap overflow in the wbs_multidata buffer copy.
EPSS 0.43% · 63.1th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.43%
63.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
| hcc-embedded | nichestack | 0 |
Exploit Intelligence
Timeline
- Aug 19, 2021 CVE Published
- Aug 20, 2021 EPSS Score
- Oct 17, 2021 EPSS Score
- Dec 15, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 11, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Apr 11, 2022 EPSS Score
- Jun 8, 2022 EPSS Score
- Aug 6, 2022 EPSS Score
- Oct 4, 2022 EPSS Score
- Dec 1, 2022 EPSS Score
References
- https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ url
- https://www.kb.cert.org/vuls/id/608209 url
- https://nvd.nist.gov/vuln/detail/CVE-2021-31227 advisory
- https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack url