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Vulnerability · Published Feb 1, 2021 · Assigned by GitHub_M

CVE-2021-21287Server-Side Request Forgery in MinIO Browser API

High 7.7

In plain English

A high-severity server-side request forgery in minio from minio. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 23.9% (higher than 98% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei.

Severity (CVSS 3.1)7.7High
Exploit odds (30 days)23.9%top 2.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Nuclei

Official description

MinIO is a High Performance Object Storage released under Apache License v2.0. In MinIO before version RELEASE.2021-01-30T00-20-58Z there is a server-side request forgery vulnerability. The target application may have functionality for importing data from a URL, publishing data to a URL, or otherwise reading data from a URL that can be tampered with. The attacker modifies the calls to this functionality by supplying a completely different URL or by manipulating how URLs are built (path traversal etc.). In a Server-Side Request Forgery (SSRF) attack, the attacker can abuse functionality on the server to read or update internal resources. The attacker can supply or modify a URL which the code running on the server will read or submit data, and by carefully selecting the URLs, the attacker may be able to read server configuration such as AWS metadata, connect to internal services like HTTP enabled databases, or perform post requests towards internal services which are not intended to be exposed. This is fixed in version RELEASE.2021-01-30T00-20-58Z, all users are advised to upgrade. As a workaround you can disable the browser front-end with "MINIO_BROWSER=off" environment variable.

Affected products (as reported)

VendorProductVersions
minio minio < RELEASE.2021-01-30T00-20-58Z

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

References