Authorization Bypass

github.com/minio/minio is vulnerable to authorization bypass. PostPolicyHandler did not verify user policies and allows an attacker to bypass the readOnly policy by creating a temporary mc share upload URL...

CVE-2021-21362: Improper Authorization

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 us...