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

8.8HIGH

Key Information:

Vendor

Minio

Status
Minio
Vendor
CVE Published:
22 March 2023

What is CVE-2023-28433?

MinIO, a Multi-Cloud Object Storage framework, has a security flaw that allows users on Windows versions prior to RELEASE.2023-03-20T20-16-18Z to exploit the improper filtering of the \ character. This vulnerability permits low-privilege users, such as those with an access key or service account, to create an admin user by placing objects in unintended buckets. As this issue poses a significant risk, it is essential for users to upgrade to the patched version RELEASE.2023-03-20T20-16-18Z immediately, as there are no known workarounds.

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Deploy the Patch

Affected Version(s)

minio < RELEASE.2023-03-20T20-16-18Z

References

https://github.com/minio/minio/security/advisories/GHSA-w...
x_refsource_CONFIRM
https://github.com/minio/minio/commit/8d6558b23649f613414...
x_refsource_MISC
https://github.com/minio/minio/commit/b3c54ec81e0a06392ab...
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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