CVE-2020-2146 Missing SSH host key validation in Mac Plugin

High 7.4 Published Updated

Jenkins Mac Plugin fails to validate SSH host keys, allowing man-in-the-middle attacks that could lead to agent compromise.

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

What is CVE-2020-2146?

CVE-2020-2146 is a high-severity vulnerability in Jenkins Mac Plugin, published on 9 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Jenkins Mac Plugin 1.1.0 and earlier does not validate SSH host keys when connecting agents created by the plugin, enabling man-in-the-middle attacks.

Weakness: CWE-347

Which versions are affected by CVE-2020-2146?

2 open source packages ship an affected version, including fr.edf.jenkins.plugins:mac. It affects 1 product.

PackageAffectedFixed in
fr.edf.jenkins.plugins:mac MavenAll versions1.2.0
fr.edf.jenkins.plugins:mac MavenAll versions1.2.0

Products include Jenkins Mac.

How do I fix CVE-2020-2146?

Upgrade fr.edf.jenkins.plugins:mac to 1.2.0 or later.

Is CVE-2020-2146 being exploited?

There is no known exploitation of CVE-2020-2146 in the wild and no public exploit code.

Sources

Also known as GHSA-rv9g-67f7-grq7.

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