CVE-2020-17470
MEDIUM
5.3
CVSS Score
Published: December 11, 2020 at 10:40 PM UTC
Updated: June 17, 2026 at 02:58 AM UTC
1 product affected across 1 vendorFnet
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Severity
MEDIUM5.3
Exploit prediction
EPSS 2%
Description
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (3)
x_refsource_CONFIRMRelease NotesThird Party Advisory
Source: [email protected]
http://fnet.sourceforge.net/manual/fnet_history.htmlx_refsource_MISCThird Party AdvisoryUS Government Resource
Source: [email protected]
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01x_refsource_MISCThird Party AdvisoryUS Government Resource
Source: [email protected]
https://www.kb.cert.org/vuls/id/815128CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-330
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