CVE-2020-2211 RCE vulnerability in ElasticBox Jenkins Kubernetes CI/CD Plugin
Attackers can achieve remote code execution via unsafe YAML deserialization in the Jenkins ElasticBox Kubernetes CI/CD Plugin.
- 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-2020-2211?
CVE-2020-2211 is a high-severity unsafe deserialization vulnerability in Jenkins ElasticBox Jenkins Kubernetes CI/CD Plugin, published on 2 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Jenkins ElasticBox Jenkins Kubernetes CI/CD Plugin 1.3 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerability.
Weakness: CWE-502
Which versions are affected by CVE-2020-2211?
2 open source packages ship an affected version, including com.elasticbox.jenkins-ci.plugins:kubernetes-ci. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
com.elasticbox.jenkins-ci.plugins:kubernetes-ci Maven | All versions to 1.3 | None |
com.elasticbox.jenkins-ci.plugins:kubernetes-ci Maven | All versions to 1.3 | None |
Products include Jenkins Kubernetes Ci.
How do I fix CVE-2020-2211?
No fix has been published for CVE-2020-2211 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2020-2211 being exploited?
There is no known exploitation of CVE-2020-2211 in the wild and no public exploit code.
Other vulnerabilities in Jenkins ElasticBox Jenkins Kubernetes CI/CD Plugin
Sources
Also known as GHSA-9r3h-wm3x-v245.