CVE-2020-2180 RCE vulnerability in Jenkins AWS SAM Plugin
Remote attackers can execute arbitrary code via unsafe YAML deserialization in the Jenkins AWS SAM 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-2020-2180?
CVE-2020-2180 is a high-severity unsafe deserialization vulnerability in Jenkins AWS SAM Plugin, published on 16 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Jenkins AWS SAM Plugin 1.2.2 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-2020-2180?
2 open source packages ship an affected version, including io.jenkins.plugins:aws-sam. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
io.jenkins.plugins:aws-sam Maven | All versions | 1.2.3 |
io.jenkins.plugins:aws-sam Maven | All versions | 1.2.3 |
Products include Jenkins Amazon Web Services Serverless Application Model.
How do I fix CVE-2020-2180?
Upgrade io.jenkins.plugins:aws-sam to 1.2.3 or later.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2020-2180 being exploited?
There is no known exploitation of CVE-2020-2180 in the wild and no public exploit code.
Sources
Also known as GHSA-qrm8-cw73-r9w8.