SB2021031920 - Improper Enforcement of Message Integrity During Transmission in a Communication Channel in minio.io minio

Description

This security bulletin contains information about 1 vulnerability.

1) Improper Enforcement of Message Integrity During Transmission in a Communication Channel (CVE-ID: CVE-2021-21390)

CWE-ID: CWE-924 - Improper Enforcement of Message Integrity During Transmission in a Communication Channel

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to modify data on the system.

The vulnerability exists due to enabled MITM modification of request bodies that are meant to have integrity guaranteed by chunk signatures. A remote unauthenticated attacker can send a specially crafted data to modify data on the system.

Remediation

Install update from vendor's website.

References

• https://github.com/minio/minio/commit/e197800f9055489415b53cf137e31e194aaf7ba0
• https://github.com/minio/minio/pull/11801
• https://github.com/minio/minio/security/advisories/GHSA-xr7r-7gpj-5pgp