{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-49363","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2024-10-14T13:56:34.810Z","datePublished":"2024-12-18T19:24:34.399Z","dateUpdated":"2024-12-19T16:46:26.503Z"},"containers":{"cna":{"title":"Uncontrolled Recursion and Asymmetric Resource Consumption (Amplification) in media/file proxy in Misskey","problemTypes":[{"descriptions":[{"cweId":"CWE-405","lang":"en","description":"CWE-405: Asymmetric Resource Consumption (Amplification)","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-674","lang":"en","description":"CWE-674: Uncontrolled Recursion","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.4,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/misskey-dev/misskey/security/advisories/GHSA-gq5q-c77c-v236","tags":["x_refsource_CONFIRM"],"url":"https://github.com/misskey-dev/misskey/security/advisories/GHSA-gq5q-c77c-v236"}],"affected":[{"vendor":"misskey-dev","product":"misskey","versions":[{"version":"< CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2024-12-18T19:24:34.399Z"},"descriptions":[{"lang":"en","value":"Misskey is an open source, federated social media platform. In affected versions FileServerService (media proxy) in github.com/misskey-dev/misskey 2024.10.1 or earlier did not detect proxy loops, which allows remote actors to execute a self-propagating reflected/amplified distributed denial-of-service via a maliciously crafted note. FileServerService.prototype.proxyHandler did not check incoming requests are not coming from another proxy server. An attacker can execute an amplified denial-of-service by sending a nested proxy request to the server and end the request with a malicious redirect back to another nested proxy request.\nLeading to unbounded recursion until the original request is timed out. This issue has been addressed in version 2024.11.0-alpha.3. Users are advised to upgrade. Users unable to upgrade may configure the reverse proxy to block requests to the proxy with an empty User-Agent header or one containing Misskey/. An attacker can not effectively modify the User-Agent header without making another request to the server."}],"source":{"advisory":"GHSA-gq5q-c77c-v236","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-12-19T16:46:18.558266Z","id":"CVE-2024-49363","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-12-19T16:46:26.503Z"}}]}}