CVE-2023-28433
Minio Privilege Escalation on Windows via Path separator manipulation
8.8
HIGH
CVSS 3.1
EPSS 0.64%
Description
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.
How to fix CVE-2023-28433
To remediate CVE-2023-28433, upgrade the affected package to a fixed version below.
- —upgrade to 2023.03.20 or later
- —upgrade to 0.0.0-202303200735 or later
Is CVE-2023-28433 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2023.03.20
- from 0, < 0.0.0-202303200735
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |