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  5. CVE-2021-43858

CVE-2021-43858: Improper Privilege Management

December 27, 2021 (updated January 10, 2022)

MinIO is a Kubernetes native application for cloud storage. Prior to version RELEASE.2021-12-27T07-23-18Z, a malicious client can hand-craft an HTTP API call that allows for updating policy for a user and gaining higher privileges. The patch in version RELEASE.2021-12-27T07-23-18Z changes the accepted request body type and removes the ability to apply policy changes through this API. There is a workaround for this vulnerability: Changing passwords can be disabled by adding an explicit Deny rule to disable the API for users.

References

  • github.com/minio/minio/commit/5a96cbbeaabd0a82b0fe881378e7c21c85091abf
  • github.com/minio/minio/pull/13976
  • github.com/minio/minio/pull/7949
  • github.com/minio/minio/releases/tag/RELEASE.2021-12-27T07-23-18Z
  • github.com/minio/minio/security/advisories/GHSA-j6jc-jqqc-p6cx
  • nvd.nist.gov/vuln/detail/CVE-2021-43858

Code Behaviors & Features

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Affected versions

All versions before v0.0.0-20211227072318-bb97eafa8254

Fixed versions

  • v0.0.0-20211227072318-bb97eafa8254

Solution

Upgrade to version v0.0.0-20211227072318-bb97eafa8254 or above.

Impact 8.8 HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-269: Improper Privilege Management

Source file

go/github.com/minio/minio/CVE-2021-43858.yml

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