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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.
Publish Date : 2021-03-08 Last Update Date : 2021-03-12
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CVSS Scores & Vulnerability Types
| CVSS Score |
4.0 |
| Confidentiality Impact |
None
(There is no impact to the confidentiality of the system.) |
| Integrity Impact |
Partial
(Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.) |
| Availability Impact |
None
(There is no impact to the availability of the system.) |
| Access Complexity |
Low
(Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. ) |
| Authentication |
??? |
| Gained Access |
None |
| Vulnerability Type(s) |
Bypass a restriction or similar |
| CWE ID |
285 |
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Products Affected By CVE-2021-21362
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Number Of Affected Versions By Product
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References For CVE-2021-21362
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Metasploit Modules Related To CVE-2021-21362
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