CVE-2020-2090: CSRF
A cross-site request forgery vulnerability in Jenkins Amazon EC2 Plugin 1.47 and earlier allows attackers to connect to an attacker-specified URL within the AWS region using attacker-specified credentials IDs obtained through another method.
Other sources
Amazon EC2 Plugin 1.47 and earlier does not perform permission checks in methods performing form validation. This allows users with Overall/Read access to Jenkins to connect to an attacker-specified URL within the AWS region using attacker-specified credentials IDs obtained through another method.
This vulnerability might also allow attackers to capture credentials stored in Jenkins. We have not been able to confirm that this is possible.
Additionally, these form validation methods do not require POST requests, resulting in a CSRF vulnerability.
Amazon EC2 Plugin 1.48 requires POST requests and Overall/Administer permission for the affected form validation methods.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
maven/org.jenkins-ci.plugins:ec2to a version that resolves this vulnerability.Fixed in 1.48
Event History
Frequently Asked Questions
What is CVE-2020-2090?
CVE-2020-2090 is a cross-site request forgery vulnerability in Jenkins Amazon EC2 Plugin 1.47 and earlier.
How does CVE-2020-2090 impact Jenkins Amazon EC2 Plugin?
CVE-2020-2090 allows attackers to connect to an attacker-specified URL within the AWS region using attacker-specified credentials IDs obtained through another method.
What is the severity of CVE-2020-2090?
CVE-2020-2090 has a severity rating of 8.8 (high).
How can I fix CVE-2020-2090?
To fix CVE-2020-2090, upgrade Jenkins Amazon EC2 Plugin to version 1.48 or later.
Where can I find more information about CVE-2020-2090?
You can find more information about CVE-2020-2090 on the Jenkins Security Advisory page: https://jenkins.io/security/advisory/2020-01-15/#SECURITY-1004