{"id":"CVE-2023-28434","sourceIdentifier":"security-advisories@github.com","published":"2023-03-22T21:15:18.427","lastModified":"2026-06-17T05:47:43.610","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Minio is a Multi-Cloud Object Storage framework. Prior to RELEASE.2023-03-20T20-16-18Z, an attacker can use crafted requests to bypass metadata bucket name checking and put an object into any bucket while processing `PostPolicyBucket`. To carry out this attack, the attacker requires credentials with `arn:aws:s3:::*` permission, as well as enabled Console API access. This issue has been patched in RELEASE.2023-03-20T20-16-18Z. As a workaround, enable browser API access and turn off `MINIO_BROWSER=off`."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"minio","product":"minio","versions":[{"version":"< RELEASE.2023-03-20T20-16-18Z","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-01-28T21:17:47.891249Z","id":"CVE-2023-28434","options":[{"exploitation":"active"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"cisaExploitAdd":"2023-09-19","cisaActionDue":"2023-10-10","cisaRequiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","cisaVulnerabilityName":"MinIO Security Feature Bypass Vulnerability","weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-269"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-noinfo"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:*","versionEndExcluding":"2023-03-20t20-16-18z","matchCriteriaId":"63CBB19F-80FF-4D6B-ADF3-7BD9768861D0"}]}]}],"references":[{"url":"https://github.com/minio/minio/commit/67f4ba154a27a1b06e48bfabda38355a010dfca5","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/minio/minio/pull/16849","source":"security-advisories@github.com","tags":["Exploit","Issue Tracking"]},{"url":"https://github.com/minio/minio/security/advisories/GHSA-2pxw-r47w-4p8c","source":"security-advisories@github.com","tags":["Vendor Advisory"]},{"url":"https://github.com/minio/minio/commit/67f4ba154a27a1b06e48bfabda38355a010dfca5","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://github.com/minio/minio/pull/16849","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Issue Tracking"]},{"url":"https://github.com/minio/minio/security/advisories/GHSA-2pxw-r47w-4p8c","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-28434","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["US Government Resource"]}]}