CVE-2021-21390 log

Source	CVE Red Hat MITRE NVD Debian Ubuntu SUSE Alpine Mageia CVE Details CIRCL Bugs Arch Linux Red Hat Gentoo SUSE GitHub Lists oss-security full-disclosure bugtraq Misc GitHub code web search
Severity	Medium
Remote	Yes
Type	Man-in-the-middle
Description	In MinIO before version RELEASE.2021-03-17T02-33-02Z, there is a vulnerability which enables man-in-the-middle (MITM) modification of request bodies that are meant to have integrity guaranteed by chunk signatures. In a PUT request using the aws-chunked encoding, MinIO ordinarily verifies signatures at the end of a chunk. This check can be skipped if the client sends a false chunk size that is much greater than the actual data sent: the server accepts and completes the request without ever reaching the end of the chunk and thereby without ever checking the chunk signature. This is fixed in version RELEASE.2021-03-17T02-33-02Z.

Group	Package	Affected	Fixed	Severity	Status	Ticket
AVG-1715	minio	2021.03.04-1	2021.03.17-1	Medium	Fixed

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

Notes
Workaround ========== As a workaround one can avoid using "aws-chunked" encoding-based chunk signature upload requests and instead use TLS. MinIO SDKs automatically disable chunked encoding signature when the server endpoint is configured with TLS.

Notes

Workaround
==========

As a workaround one can avoid using "aws-chunked" encoding-based chunk signature upload requests and instead use TLS. MinIO SDKs automatically disable chunked encoding signature when the server endpoint is configured with TLS.