{"containers":{"cna":{"affected":[{"product":"minio","vendor":"minio","versions":[{"status":"affected","version":"< RELEASE.2021-03-17T02-33-02Z"}]}],"descriptions":[{"lang":"en","value":"MinIO is an open-source high performance object storage service and it is API compatible with Amazon S3 cloud storage service. In MinIO before version RELEASE.2021-03-17T02-33-02Z, there is a vulnerability which enables MITM modification of request bodies that are meant to have integrity guaranteed by chunk signatures. In a PUT request using aws-chunked encoding, MinIO ordinarily verifies signatures at the end of a chunk. This check can be skipped if the client sends a false chunk size that is much greater than the actual data sent: the server accepts and completes the request without ever reaching the end of the chunk + thereby without ever checking the chunk signature. This is fixed in version RELEASE.2021-03-17T02-33-02Z. As a workaround one can avoid using \"aws-chunked\" encoding-based chunk signature upload requests instead use TLS. MinIO SDKs automatically disable chunked encoding signature when the server endpoint is configured with TLS."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-924","description":"CWE-924: Improper Enforcement of Message Integrity During Transmission in a Communication Channel","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2021-03-19T16:00:17.000Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://github.com/minio/minio/security/advisories/GHSA-xr7r-7gpj-5pgp"},{"tags":["x_refsource_MISC"],"url":"https://github.com/minio/minio/pull/11801"},{"tags":["x_refsource_MISC"],"url":"https://github.com/minio/minio/commit/e197800f9055489415b53cf137e31e194aaf7ba0"}],"source":{"advisory":"GHSA-xr7r-7gpj-5pgp","discovery":"UNKNOWN"},"title":"MITM modification of request bodies in MinIO","x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2021-21390","STATE":"PUBLIC","TITLE":"MITM modification of request bodies in MinIO"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"minio","version":{"version_data":[{"version_value":"< RELEASE.2021-03-17T02-33-02Z"}]}}]},"vendor_name":"minio"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"MinIO is an open-source high performance object storage service and it is API compatible with Amazon S3 cloud storage service. In MinIO before version RELEASE.2021-03-17T02-33-02Z, there is a vulnerability which enables MITM modification of request bodies that are meant to have integrity guaranteed by chunk signatures. In a PUT request using aws-chunked encoding, MinIO ordinarily verifies signatures at the end of a chunk. This check can be skipped if the client sends a false chunk size that is much greater than the actual data sent: the server accepts and completes the request without ever reaching the end of the chunk + thereby without ever checking the chunk signature. This is fixed in version RELEASE.2021-03-17T02-33-02Z. As a workaround one can avoid using \"aws-chunked\" encoding-based chunk signature upload requests instead use TLS. MinIO SDKs automatically disable chunked encoding signature when the server endpoint is configured with TLS."}]},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-924: Improper Enforcement of Message Integrity During Transmission in a Communication Channel"}]}]},"references":{"reference_data":[{"name":"https://github.com/minio/minio/security/advisories/GHSA-xr7r-7gpj-5pgp","refsource":"CONFIRM","url":"https://github.com/minio/minio/security/advisories/GHSA-xr7r-7gpj-5pgp"},{"name":"https://github.com/minio/minio/pull/11801","refsource":"MISC","url":"https://github.com/minio/minio/pull/11801"},{"name":"https://github.com/minio/minio/commit/e197800f9055489415b53cf137e31e194aaf7ba0","refsource":"MISC","url":"https://github.com/minio/minio/commit/e197800f9055489415b53cf137e31e194aaf7ba0"}]},"source":{"advisory":"GHSA-xr7r-7gpj-5pgp","discovery":"UNKNOWN"}}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T18:09:16.085Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://github.com/minio/minio/security/advisories/GHSA-xr7r-7gpj-5pgp"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/minio/minio/pull/11801"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/minio/minio/commit/e197800f9055489415b53cf137e31e194aaf7ba0"}]}]},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2021-21390","datePublished":"2021-03-19T16:00:17.000Z","dateReserved":"2020-12-22T00:00:00.000Z","dateUpdated":"2024-08-03T18:09:16.085Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}