GHSA-pwx7-fx9r-hr4h
NATS Server: Incomplete Stripping of Nats-Request-Info Header Allows Identity Spoofing
Quick fix
GHSA-pwx7-fx9r-hr4h — github.com/nats-io/nats-server/v2: upgrade to the fixed version with the command below.
go get github.com/nats-io/nats-server/v2@v2.11.15Details
### Background
NATS.io is a high performance open source pub-sub distributed communication technology, built for the cloud, on-premise, IoT, and edge computing.
The nats-server offers a `Nats-Request-Info:` message header, providing information about a request.
### Problem Description
The NATS message header `Nats-Request-Info:` is supposed to be a guarantee of identity by the NATS server, but the stripping of this header from inbound messages was not fully effective.
An attacker with valid credentials for any regular client interface could thus spoof their identity to services which rely upon this header.
### Affected Versions
Any version before v2.12.6 or v2.11.15
### Workarounds
None.
Are you affected?
Enter the version of the package you're using.
Affected packages
0Fixed in: 2.11.15go get github.com/nats-io/nats-server/v2@v2.11.152.12.0-RC.1Fixed in: 2.12.6go get github.com/nats-io/nats-server/v2@v2.12.60No fixed version published yet for github.com/nats-io/nats-server (go modules). Pin to a known-safe version or switch to an alternative.