CVE-2021-3469 Missing authorization in Foreman

Medium 5.4 Published Updated

Authenticated attackers can impersonate foreman-proxy to sign malicious certificates if Puppet CA SANs are explicitly enabled.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-3469?

CVE-2021-3469 is a medium-severity missing authorization vulnerability in Theforeman Foreman, published on 3 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Foreman versions before 2.3.4 and before 2.4.0 is affected by an improper authorization handling flaw. An authenticated attacker can impersonate the foreman-proxy if product enable the Puppet Certificate authority (CA) to sign certificate requests that have subject alternative names (SANs). Foreman do not enable SANs by default and `allow-authorization-extensions` is set to `false` unless user change `/etc/puppetlabs/puppetserver/conf.d/ca.conf` configuration explicitly.

Weakness: CWE-863

Which versions are affected by CVE-2021-3469?

It affects 1 product.

Products include Theforeman Foreman.

How do I fix CVE-2021-3469?

No fix has been published for CVE-2021-3469 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-3469 being exploited?

There is no known exploitation of CVE-2021-3469 in the wild and no public exploit code.

All Theforeman Foreman vulnerabilities

Sources

Also known as GHSA-gfhf-42qr-7pgh.

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