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  5. CVE-2023-28433

CVE-2023-28433: Privilege Escalation on Windows via Path separator manipulation

March 22, 2023 (updated March 28, 2023)

Minio is a Multi-Cloud Object Storage framework. All users on Windows prior to version RELEASE.2023-03-20T20-16-18Z are impacted. MinIO fails to filter the \ character, which allows for arbitrary object placement across buckets. As a result, a user with low privileges, such as an access key, service account, or STS credential, which only has permission to PutObject in a specific bucket, can create an admin user. This issue is patched in RELEASE.2023-03-20T20-16-18Z. There are no known workarounds.

References

  • github.com/minio/minio/commit/8d6558b23649f613414c8527b58973fbdfa4d1b8
  • github.com/minio/minio/commit/b3c54ec81e0a06392abfb3a1ffcdc80c6fbf6ebc
  • github.com/minio/minio/releases/tag/RELEASE.2023-03-20T20-16-18Z
  • github.com/minio/minio/security/advisories/GHSA-w23q-4hw3-2pp6
  • nvd.nist.gov/vuln/detail/CVE-2023-28433

Code Behaviors & Features

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Affected versions

All versions before 2023-03-20t20-16-18z

Fixed versions

  • v2023-03-20t20-16-18z

Solution

Upgrade to version 2023-03-20t20-16-18z 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

Source file

go/github.com/minio/minio/CVE-2023-28433.yml

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