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.
The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.
| Link | Tags |
|---|---|
| https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ | third party advisory mitigation |
| https://www.kb.cert.org/vuls/id/608209 | third party advisory us government resource |