GHSA-6c73-2v8x-qpvm Argo Server TLS requests could be forged by attacker with network access

Not scored Published 23 Aug 2021

Attackers with network access can extract hardcoded TLS keys from Argo Server images to decrypt traffic or forge requests.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is GHSA-6c73-2v8x-qpvm?

GHSA-6c73-2v8x-qpvm is a vulnerability in github.com/argoproj/argo-workflows, published on 23 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Impact

We are not aware of any exploits. This is a pro-active fix.

Impacted:

You are running Argo Server < v3.0 with --secure=true or >= v3.0 with --secure unspecified (note - running in secure mode is recommended regardless).
The attacker is within your network. If you expose Argo Server to the Internet then "your network" is "the Internet".

The Argo Server's keys are packaged within the image. They could be extracted and used to decrypt traffic, or forge requests.

Patches

https://github.com/argoproj/argo-workflows/pull/6540

Workarounds

Make sure that your Argo Server service or pod are not directly accessible outside of your cluster. Put TLS load balancer in front of it.

This was identified by engineers at Jetstack.io

Which versions are affected by GHSA-6c73-2v8x-qpvm?

7 open source packages ship an affected version, including github.com/argoproj/argo-workflows/v3, github.com/argoproj/argo-workflows and github.com/argoproj/argo-workflows/v2.

Package	Affected	Fixed in
`github.com/argoproj/argo-workflows/v3` Go	From `3.0.0`	`3.0.9, 3.1.6`
`github.com/argoproj/argo-workflows/v3` Go	From `3.0.0`	`3.0.9`
`github.com/argoproj/argo-workflows/v3` Go	From `3.0.0`	`3.0.9`
`github.com/argoproj/argo-workflows/v3` Go	From `3.1.0`	`3.1.6`
`github.com/argoproj/argo-workflows/v3` Go	From `3.1.0`	`3.1.6`
`github.com/argoproj/argo-workflows` Go	All versions	None

1 more packages

github.com/argoproj/argo-workflows/v2 Go All versions None

How do I fix GHSA-6c73-2v8x-qpvm?

Upgrade github.com/argoproj/argo-workflows/v3 to a fixed version for your release line: 3.0.9 or 3.1.6.

Is GHSA-6c73-2v8x-qpvm being exploited?

There is no known exploitation of GHSA-6c73-2v8x-qpvm in the wild and no public exploit code.

Sources

Also known as GO-2022-0388.