{"id":"CVE-2025-41256","state":"PUBLISHED","title":"Cyberduck and Mountain Duck - Weak Hash Algorithm for Certificate Fingerprint","description":"Cyberduck and Mountain Duck improper handle TLS certificate pinning for untrusted certificates (e.g., self-signed), since the certificate fingerprint is stored as SHA-1, although SHA-1 is considered weak.\n\n\n\n\n\n\n\nThis issue affects Cyberduck: through 9.1.6; Mountain Duck: through 4.17.5.","publishedAt":"2025-06-25T09:16:58.586Z","updatedAt":"2025-06-25T13:34:07.242Z","severity":{"score":7.4,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","source":"sba-research"},"assigner":"sba-research","products":["iterate GmbH Cyberduck","iterate GmbH Mountain Duck"],"affected":[{"vendor":"iterate GmbH","product":"Cyberduck","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"9.1.6","versionType":"semver"}],"repo":"https://github.com/iterate-ch/cyberduck"},{"vendor":"iterate GmbH","product":"Mountain Duck","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.17.5","versionType":"semver"}]}],"references":["https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250325-02_Cyberduck_Mountain_Duck_Weak_Hash","https://github.com/iterate-ch/cyberduck/security/advisories/GHSA-688c-vjrc-84rv"],"weaknesses":["CWE-328"],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/41xxx/CVE-2025-41256.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-41256","state":"PUBLISHED","datePublished":"2025-06-25T09:16:58.586Z","dateUpdated":"2025-06-25T13:34:07.242Z","assignerShortName":"sba-research","assignerOrgId":"1e3a9e0f-5156-4bf8-b8a3-cc311bfc0f4a","dateReserved":"2025-04-16T09:37:50.631Z"},"containers":{"cna":{"title":"Cyberduck and Mountain Duck - Weak Hash Algorithm for Certificate Fingerprint","descriptions":[{"lang":"en","value":"Cyberduck and Mountain Duck improper handle TLS certificate pinning for untrusted certificates (e.g., self-signed), since the certificate fingerprint is stored as SHA-1, although SHA-1 is considered weak.\n\n\n\n\n\n\n\nThis issue affects Cyberduck: through 9.1.6; Mountain Duck: through 4.17.5."}],"affected":[{"vendor":"iterate GmbH","product":"Cyberduck","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"9.1.6","versionType":"semver"}],"repo":"https://github.com/iterate-ch/cyberduck"},{"vendor":"iterate GmbH","product":"Mountain Duck","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.17.5","versionType":"semver"}]}],"references":[{"url":"https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250325-02_Cyberduck_Mountain_Duck_Weak_Hash","tags":["third-party-advisory"]},{"url":"https://github.com/iterate-ch/cyberduck/security/advisories/GHSA-688c-vjrc-84rv","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.4,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-328","description":"CWE-328: Use of Weak Hash","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"sba-research","orgId":"1e3a9e0f-5156-4bf8-b8a3-cc311bfc0f4a","dateUpdated":"2025-06-25T09:16:58.586Z"},"credits":[{"lang":"en","type":"finder","value":"Thomas Kostal"},{"lang":"en","type":"finder","value":"Andreas Boll"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250325-02_Cyberduck_Mountain_Duck_Weak_Hash","tags":["exploit"]},{"url":"https://github.com/iterate-ch/cyberduck/security/advisories/GHSA-688c-vjrc-84rv","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-06-25T13:34:04.627890Z","id":"CVE-2025-41256","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-06-25T13:34:07.242Z"}}]}}}