RustFS: ImportIam Allows Creation of Backdoor Service Accounts Under Any Parent Including Root
RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.2, improper validation in the PUT /rustfs/admin/v3/import-iam endpoint allows a user with ImportIAMAction to create service accounts under arbitrary parent identities, including the root user (minioadmin). The endpoint accepts attacker-controlled parent, claims, accessKey, and secretKey values without enforcing privilege boundaries or sanitization. This enables privilege escalation to full administrative access using a persistent, attacker-defined credential. This vulnerability is fixed in 1.0.0-beta.2.
Problem Types
| Type | CWE ID | Description |
|---|
| CWE | CWE-269 | CWE-269: Improper Privilege Management |
| CWE | CWE-284 | CWE-284: Improper Access Control |
Type: CWE
Description: CWE-269: Improper Privilege Management
Type: CWE
Description: CWE-284: Improper Access Control
Metrics
| Version | Base score | Base severity | Vector |
|---|
| 4.0 | 9.3 | CRITICAL | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N |
Version: 4.0
Base score: 9.3
Base severity: CRITICAL
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N