CVE-2020-17470

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 55%
VendorProductVersion
butokfnet
𝑥
≤ 4.6.4
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
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