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VULNERABILITIES

CVE-2021-31228 Details

Description

An issue was discovered in HCC embedded InterNiche 4.0.1. This vulnerability allows the attacker to predict a DNS query's source port in order to send forged DNS response packets that will be accepted as valid answers to the DNS client's requests (without sniffing the specific request). Data is predictable because it is based on the time of day, and has too few bits.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ CVEMitigationThird Party Advisory
https://www.kb.cert.org/vuls/id/608209 CVEThird Party AdvisoryUS Government Resource
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ [email protected]MitigationThird Party Advisory
https://www.kb.cert.org/vuls/id/608209 [email protected]Third Party AdvisoryUS Government Resource

Weakness Enumeration

CWE-IDCWE NameSource
CWE-330Use of Insufficiently Random Values[email protected]

Affected Products

ProductVersions
hcc-embedded nichestack
< 4.3

CPE

  • cpe:2.3:a:hcc-embedded:nichestack:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-31228
NVD Published Date:
Aug 19, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-31228 Details - Not Deferred