Vulnerability in Hcc-Embedded Nichestack
CVE-2021-31228
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.
EPSS: 0.013 (66.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Hcc-embedded Nichestack
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Mitigation)
- cve@mitre.org (US Government Resource, x_refsource_CERT-VN, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2021-31228?
- CVE-2021-31228 is a high-severity vulnerability in Hcc-Embedded Nichestack, classified under Use of Insufficiently Random Values. CVSS score: 7.5/10. Published 2021-08-19.
- How severe is CVE-2021-31228?
- High severity. CVSS v3 base score is 7.5 out of 10.