CVE-2018-1000422 Jenkins Crowd 2 Integration Plugin server-side request forgery vulnerability

Medium 6.5 Published Updated

Attackers can force Jenkins to connect to arbitrary servers with attacker-controlled credentials, enabling Server-Side Request Forgery and potential data exposure.

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-2018-1000422?

CVE-2018-1000422 is a medium-severity server-side request forgery vulnerability in n/a, published on 9 Jan 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An improper authorization vulnerability exists in Jenkins Crowd 2 Integration Plugin 2.0.0 and earlier in CrowdSecurityRealm.java that allows attackers to have Jenkins perform a connection test, connecting to an attacker-specified server with attacker-specified credentials and connection settings.

Weakness: CWE-918

Which versions are affected by CVE-2018-1000422?

2 open source packages ship an affected version, including org.jenkins-ci.plugins:crowd2. It affects 1 product.

PackageAffectedFixed in
org.jenkins-ci.plugins:crowd2 MavenAll versions2.0.1
org.jenkins-ci.plugins:crowd2 MavenAll versions2.0.1

Products include Atlassian Crowd2.

How do I fix CVE-2018-1000422?

Upgrade org.jenkins-ci.plugins:crowd2 to 2.0.1 or later.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2018-1000422 being exploited?

There is no known exploitation of CVE-2018-1000422 in the wild and no public exploit code.

Sources

Also known as GHSA-grmg-5q49-mqmf.

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