{"containers":{"cna":{"affected":[{"product":"security-advisories","vendor":"nextcloud","versions":[{"status":"affected","version":"< 20.0.13"},{"status":"affected","version":">= 21.0.0, < 21.0.5"},{"status":"affected","version":"< 22.2.0"}]}],"descriptions":[{"lang":"en","value":"Nextcloud is an open-source, self-hosted productivity platform. Prior to versions 20.0.13, 21.0.5, and 22.2.0, Nextcloud Server did not implement a database backend for rate-limiting purposes. Any component of Nextcloud using rate-limits (as as `AnonRateThrottle` or `UserRateThrottle`) was thus not rate limited on instances not having a memory cache backend configured. In the case of a default installation, this would notably include the rate-limits on the two factor codes. It is recommended that the Nextcloud Server be upgraded to 20.0.13, 21.0.5, or 22.2.0. As a workaround, enable a memory cache backend in `config.php`."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-799","description":"CWE-799: Improper Control of Interaction Frequency","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2022-08-11T00:08:05.000Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fj39-4qx4-m3f2"},{"tags":["x_refsource_MISC"],"url":"https://github.com/nextcloud/server/pull/28728"},{"tags":["x_refsource_MISC"],"url":"https://hackerone.com/reports/1265709"},{"name":"GLSA-202208-17","tags":["vendor-advisory","x_refsource_GENTOO"],"url":"https://security.gentoo.org/glsa/202208-17"}],"source":{"advisory":"GHSA-fj39-4qx4-m3f2","discovery":"UNKNOWN"},"title":"Rate-limits not working on instances without configured memory cache backend","x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2021-41177","STATE":"PUBLIC","TITLE":"Rate-limits not working on instances without configured memory cache backend"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"security-advisories","version":{"version_data":[{"version_value":"< 20.0.13"},{"version_value":">= 21.0.0, < 21.0.5"},{"version_value":"< 22.2.0"}]}}]},"vendor_name":"nextcloud"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Nextcloud is an open-source, self-hosted productivity platform. 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As a workaround, enable a memory cache backend in `config.php`."}]},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-799: Improper Control of Interaction Frequency"}]}]},"references":{"reference_data":[{"name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fj39-4qx4-m3f2","refsource":"CONFIRM","url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fj39-4qx4-m3f2"},{"name":"https://github.com/nextcloud/server/pull/28728","refsource":"MISC","url":"https://github.com/nextcloud/server/pull/28728"},{"name":"https://hackerone.com/reports/1265709","refsource":"MISC","url":"https://hackerone.com/reports/1265709"},{"name":"GLSA-202208-17","refsource":"GENTOO","url":"https://security.gentoo.org/glsa/202208-17"}]},"source":{"advisory":"GHSA-fj39-4qx4-m3f2","discovery":"UNKNOWN"}}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T02:59:31.688Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fj39-4qx4-m3f2"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/nextcloud/server/pull/28728"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://hackerone.com/reports/1265709"},{"name":"GLSA-202208-17","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred"],"url":"https://security.gentoo.org/glsa/202208-17"}]}]},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2021-41177","datePublished":"2021-10-25T21:50:11.000Z","dateReserved":"2021-09-15T00:00:00.000Z","dateUpdated":"2024-08-04T02:59:31.688Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}