Thanks to @phith0n from our community upon a code review, discovered an SSRF (Server Side Request Forgery) in our Browser API implementation. We have not observed this report/attack in the wild or reported elsewhere in the community at large.
All users are advised to upgrade ASAP.
Impact
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.
Patches
This issue was fixed by PR #11337, users should upgrade to RELEASE.2021-01-30T00-20-58Z for the fix.
Workarounds
You can disable the browser front-end with MINIO_BROWSER=off environment variable.
Binary Download
Please download the latest server binary that contains the fix from
For all other architectures please visit https://min.io/download
Docker Container Download
docker pull minio/minio:RELEASE.2021-01-30T00-20-58Z
Questions
If you have any questions or comments regarding this advisory please reach out to us through any of the following means.
Alevsk Analyst
aead Analyst
harshavardhana Analyst
phith0n Analyst
Thanks to @phith0n from our community upon a code review, discovered an SSRF (Server Side Request Forgery) in our Browser API implementation. We have not observed this report/attack in the wild or reported elsewhere in the community at large.
All users are advised to upgrade ASAP.
Impact
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.
Patches
This issue was fixed by PR #11337, users should upgrade to RELEASE.2021-01-30T00-20-58Z for the fix.
Workarounds
You can disable the browser front-end with
MINIO_BROWSER=offenvironment variable.Binary Download
Please download the latest server binary that contains the fix from
For all other architectures please visit https://min.io/download
Docker Container Download
Questions
If you have any questions or comments regarding this advisory please reach out to us through any of the following means.