Vulnerability in Minio
CVE-2023-28433
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (60.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Minio — versions < RELEASE.2023-03-20T20-16-18Z
Weakness classification (CWE)
References
- github.com/minio/minio/security/advisories/GHSA-w23q-4hw3-2pp6 (Vendor Advisory)
- github.com/minio/minio/commit/8d6558b23649f613414c8527b58973fbdfa4d1b8 (Patch)
- github.com/minio/minio/commit/b3c54ec81e0a06392abfb3a1ffcdc80c6fbf6ebc (Patch)
- github.com/minio/minio/releases/tag/RELEASE.2023-03-20T20-16-18Z (Release Notes)
Frequently asked questions
- What is CVE-2023-28433?
- CVE-2023-28433 is a high-severity vulnerability in Minio, classified under Exposure of Resource to Wrong Sphere. CVSS score: 8.8/10. Published 2023-03-22.
- How severe is CVE-2023-28433?
- High severity. CVSS v3 base score is 8.8 out of 10.