CVE-2022-40716 HashiCorp Consul vulnerable to authorization bypass

Medium 6.5 Published Updated

Attackers with privileged access can bypass service mesh intentions by exploiting missing SAN URI validation in Consul's internal RPC endpoint.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2022-40716?

CVE-2022-40716 is a medium-severity vulnerability in n/a, published on 23 Sep 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

HashiCorp Consul and Consul Enterprise up to 1.11.8, 1.12.4, and 1.13.1 do not check for multiple SAN URI values in a CSR on the internal RPC endpoint, enabling leverage of privileged access to bypass service mesh intentions. Fixed in 1.11.9, 1.12.5, and 1.13.2."

Weakness: CWE-252

Which versions are affected by CVE-2022-40716?

8 open source packages ship an affected version, including github.com/hashicorp/consul and consul. It affects 1 product.

PackageAffectedFixed in
github.com/hashicorp/consul GoAll versions1.11.9, 1.12.5, 1.13.2
github.com/hashicorp/consul GoAll versions1.11.9
github.com/hashicorp/consul GoAll versions1.11.9
github.com/hashicorp/consul GoFrom 1.12.01.12.5
github.com/hashicorp/consul GoFrom 1.12.01.12.5
github.com/hashicorp/consul GoFrom 1.13.01.13.2
2 more packages
github.com/hashicorp/consul GoFrom 1.13.01.13.2
consul BitnamiAll versions1.11.9, 1.12.5, 1.13.2

Products include Hashicorp Consul.

How do I fix CVE-2022-40716?

Upgrade github.com/hashicorp/consul to a fixed version for your release line: 1.11.9, 1.12.5 or 1.13.2.

Is CVE-2022-40716 being exploited?

There is no known exploitation of CVE-2022-40716 in the wild and no public exploit code.

Sources

Also known as BIT-consul-2022-40716, DEBIAN-CVE-2022-40716, GHSA-m69r-9g56-7mv8, GO-2022-1029, UBUNTU-CVE-2022-40716.

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