CVE-2020-17470

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01", "name": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01", "tags": ["Third Party Advisory", "US Government Resource"], "refsource": "MISC"}, {"url": "http://fnet.sourceforge.net/manual/fnet_history.html", "name": "http://fnet.sourceforge.net/manual/fnet_history.html", "tags": ["Release Notes", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://www.kb.cert.org/vuls/id/815128", "name": "https://www.kb.cert.org/vuls/id/815128", "tags": ["Third Party Advisory", "US Government Resource"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-330"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2020-17470", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}}, "publishedDate": "2020-12-11T23:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:fnet_project:fnet:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "4.6.4"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-07-21T11:39Z"}