{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-28999","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2023-03-29T17:39:16.141Z","datePublished":"2023-04-04T12:51:08.241Z","dateUpdated":"2025-02-11T16:32:05.176Z"},"containers":{"cna":{"title":"Nextcloud: Lack of authenticity of metadata keys allows a malicious server to gain access to E2EE folders","problemTypes":[{"descriptions":[{"cweId":"CWE-325","lang":"en","description":"CWE-325: Missing Cryptographic Step","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"PHYSICAL","availabilityImpact":"LOW","baseScore":6.9,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8875-wxww-3rr8","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8875-wxww-3rr8"},{"name":"https://github.com/nextcloud/desktop/pull/5560","tags":["x_refsource_MISC"],"url":"https://github.com/nextcloud/desktop/pull/5560"},{"name":"https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf","tags":["x_refsource_MISC"],"url":"https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf"}],"affected":[{"vendor":"nextcloud","product":"security-advisories","versions":[{"version":">= 3.0.0, < 3.8.0","status":"affected"},{"version":">= 3.13.0, < 3.25.0","status":"affected"},{"version":">= 3.0.5, < 4.8.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2023-04-04T12:51:08.241Z"},"descriptions":[{"lang":"en","value":"Nextcloud is an open-source productivity platform. In Nextcloud Desktop client 3.0.0 until 3.8.0, Nextcloud Android app 3.13.0 until 3.25.0, and Nextcloud iOS app 3.0.5 until 4.8.0, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure and add new files.​ This issue is fixed in Nextcloud Desktop 3.8.0, Nextcloud Android 3.25.0, and Nextcloud iOS 4.8.0. No known workarounds are available."}],"source":{"advisory":"GHSA-8875-wxww-3rr8","discovery":"UNKNOWN"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T13:51:38.979Z"},"title":"CVE Program Container","references":[{"name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8875-wxww-3rr8","tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8875-wxww-3rr8"},{"name":"https://github.com/nextcloud/desktop/pull/5560","tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/nextcloud/desktop/pull/5560"},{"name":"https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf","tags":["x_refsource_MISC","x_transferred"],"url":"https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf"}]},{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-02-11T16:31:58.681356Z","id":"CVE-2023-28999","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-02-11T16:32:05.176Z"}}]}}