CVE-2021-31228 Weak cryptography in n/a
Attackers can predict DNS source ports to inject forged responses, bypassing DNS validation in HCC embedded InterNiche stacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-31228?
CVE-2021-31228 is a high-severity vulnerability in n/a, published on 19 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-330
Which versions are affected by CVE-2021-31228?
It affects 1 product.
Products include Hcc-Embedded Nichestack.
How do I fix CVE-2021-31228?
No fix has been published for CVE-2021-31228 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-31228 being exploited?
There is no known exploitation of CVE-2021-31228 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-j7p3-x6j6-x86p.