{"id":"CVE-2023-29000","state":"PUBLISHED","title":"Nextcloud Desktop client does not verify received singed certificate in end-to-end encryption","description":"The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.7.0, by trusting that the server will return a certificate that belongs to the keypair of the user, a malicious server could get the desktop client to encrypt files with a key known to the attacker. This issue is fixed in Nextcloud Desktop 3.7.0. No known workarounds are available.","publishedAt":"2023-04-04T12:53:35.904Z","updatedAt":"2025-02-11T16:20:51.424Z","severity":{"score":5.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["nextcloud security-advisories"],"affected":[{"vendor":"nextcloud","product":"security-advisories","versions":[{"version":">= 3.0.0, < 3.7.0","status":"affected"}]}],"references":["https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h82x-98q3-7534","https://github.com/nextcloud/desktop/pull/4949","https://hackerone.com/reports/1679267"],"weaknesses":["CWE-295"],"ingestedAt":"2026-10-29T20:05:52.290Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/29xxx/CVE-2023-29000.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-29000","state":"PUBLISHED","datePublished":"2023-04-04T12:53:35.904Z","dateUpdated":"2025-02-11T16:20:51.424Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2023-03-29T17:39:16.142Z"},"containers":{"cna":{"title":"Nextcloud Desktop client does not verify received singed certificate in end-to-end encryption","descriptions":[{"lang":"en","value":"The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.7.0, by trusting that the server will return a certificate that belongs to the keypair of the user, a malicious server could get the desktop client to encrypt files with a key known to the attacker. This issue is fixed in Nextcloud Desktop 3.7.0. No known workarounds are available."}],"affected":[{"vendor":"nextcloud","product":"security-advisories","versions":[{"version":">= 3.0.0, < 3.7.0","status":"affected"}]}],"references":[{"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h82x-98q3-7534","name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h82x-98q3-7534","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/nextcloud/desktop/pull/4949","name":"https://github.com/nextcloud/desktop/pull/4949","tags":["x_refsource_MISC"]},{"url":"https://hackerone.com/reports/1679267","name":"https://hackerone.com/reports/1679267","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-295","lang":"en","description":"CWE-295: Improper Certificate Validation","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2023-04-04T12:53:35.904Z"},"source":{"advisory":"GHSA-h82x-98q3-7534","discovery":"UNKNOWN"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h82x-98q3-7534","name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h82x-98q3-7534","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://github.com/nextcloud/desktop/pull/4949","name":"https://github.com/nextcloud/desktop/pull/4949","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://hackerone.com/reports/1679267","name":"https://hackerone.com/reports/1679267","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T13:51:38.991Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-02-11T16:20:43.395683Z","id":"CVE-2023-29000","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-02-11T16:20:51.424Z"}}]}}}