medium5.3
CVE-2020-17470
An issue was discovered in FNET through 4.6.4.
Impact
An issue was discovered in FNET through 4.6.4. The code that initializes the DNS client interface structure does not set sufficiently random transaction IDs (they are always set to 1 in _fnet_dns_poll in fnet_dns.c). This significantly simplifies DNS cache poisoning attacks.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Butok | Fnet | through 4.6.4 |
Weakness classification
References
- NVD record
- CVE.org record
- http://fnet.sourceforge.net/manual/fnet_history.html
- https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
- https://www.kb.cert.org/vuls/id/815128
- http://fnet.sourceforge.net/manual/fnet_history.html
- https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
- https://www.kb.cert.org/vuls/id/815128