CVE-2023-28433CWE-668

Minio Privilege Escalation on Windows via Path separator manipulation

High · published March 22, 2023

CVSS v3.1
8.8
EPSS
1%
Percentile
61.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00981 · 61.9th percentile
Weakness
CWE-668 · Exposure of Resource to Wrong Sphere
Published
2023-03-22T20:33Z
EPSS history
Timeline
  • 22 MAR 20:33Z
    Minio Privilege Escalation on Windows via Path separator manipulation
    cvelistv5