CVE-2021-21362
In MinIO before version RELEASE.2021-03-04T00-53-13Z it is possible to bypass a readOnly policy by creating a temporary 'mc share upload' URL.
Does this matter?
Lower severity and a low EPSS score (1.32%). Track it; it rarely justifies an emergency change on its own.
Description
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.2021-03-04T00-53-13Z it is possible to bypass a readOnly policy by creating a temporary 'mc share upload' URL. Everyone is impacted who uses MinIO multi-users. This is fixed in version RELEASE.2021-03-04T00-53-13Z. As a workaround, one can disable uploads with `Content-Type: multipart/form-data` as mentioned in the S3 API RESTObjectPOST docs by using a proxy in front of MinIO.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.32% probability · 69th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-285, CWE-863
- Affected
- minio/minio
- Source
- security-advisories@github.com
References
- https://github.com/minio/minio/commit/039f59b552319fcc2f83631bb421a7d4b82bc482Patch, Third Party Advisory
- https://github.com/minio/minio/pull/11682Exploit, Third Party Advisory
- https://github.com/minio/minio/releases/tag/RELEASE.2021-03-04T00-53-13ZRelease Notes, Third Party Advisory
- https://github.com/minio/minio/security/advisories/GHSA-hq5j-6r98-9m8vThird Party Advisory
- https://github.com/minio/minio/commit/039f59b552319fcc2f83631bb421a7d4b82bc482Patch, Third Party Advisory
- https://github.com/minio/minio/pull/11682Exploit, Third Party Advisory
- https://github.com/minio/minio/releases/tag/RELEASE.2021-03-04T00-53-13ZRelease Notes, Third Party Advisory
- https://github.com/minio/minio/security/advisories/GHSA-hq5j-6r98-9m8vThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.