CVE-2020-2094 Missing permission checks in Health Advisor by CloudBees Plugin

Medium 4.3 Published Updated

Attackers with read permissions can trigger unauthorized emails to specific recipients due to missing permission checks in the Jenkins Health Advisor plugin.

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-2020-2094?

CVE-2020-2094 is a medium-severity missing authorization vulnerability in Jenkins Health Advisor by CloudBees Plugin, published on 15 Jan 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A missing permission check in Jenkins Health Advisor by CloudBees Plugin 3.0 and earlier allows attackers with Overall/Read permission to send a fixed email to an attacker-specific recipient.

Weakness: CWE-862

Which versions are affected by CVE-2020-2094?

2 open source packages ship an affected version, including org.jenkins-ci.plugins:cloudbees-jenkins-advisor. It affects 1 product.

PackageAffectedFixed in
org.jenkins-ci.plugins:cloudbees-jenkins-advisor MavenAll versions3.0.1
org.jenkins-ci.plugins:cloudbees-jenkins-advisor MavenAll versions3.0.1

Products include Jenkins Health Advisor by Cloudbees.

How do I fix CVE-2020-2094?

Upgrade org.jenkins-ci.plugins:cloudbees-jenkins-advisor to 3.0.1 or later.

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

Is CVE-2020-2094 being exploited?

There is no known exploitation of CVE-2020-2094 in the wild and no public exploit code.

Sources

Also known as GHSA-h72v-652w-xv64.

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