CVE-2020-2168 RCE vulnerability in Jenkins Azure Container Service Plugin
Attackers can achieve remote code execution by exploiting unsafe YAML parsing in the Jenkins Azure Container Service 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-2020-2168?
CVE-2020-2168 is a high-severity unsafe deserialization vulnerability in Jenkins Azure Container Service Plugin, published on 25 Mar 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Jenkins Azure Container Service Plugin 1.0.1 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerability.
Weakness: CWE-20
Which versions are affected by CVE-2020-2168?
2 open source packages ship an affected version, including org.jenkins-ci.plugins:azure-acs. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.jenkins-ci.plugins:azure-acs Maven | All versions | 1.0.2 |
org.jenkins-ci.plugins:azure-acs Maven | All versions | 1.0.2 |
Products include Jenkins Azure Container Service.
How do I fix CVE-2020-2168?
Upgrade org.jenkins-ci.plugins:azure-acs to 1.0.2 or later.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2020-2168 being exploited?
There is no known exploitation of CVE-2020-2168 in the wild and no public exploit code.
Sources
Also known as GHSA-5qff-7944-vq4f.