| Package | Affected versions | Patched versions |
|---|---|---|
| com.amazon.jenkins.fleet:ec2-fleet | < 4.2.3.540.va | 4.2.3.540.va |
| ec2 fleet | ≤ 4.2.3.539.v8fedff2a_81c3 |
Jenkins EC2 Fleet Plugin 4.2.3.539.v8fedff2a_81c3 and earlier does not perform permission checks in several HTTP endpoints used to validate cloud configurations.
This allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing AWS credentials stored in Jenkins.
Additionally, these HTTP endpoints do not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.
EC2 Fleet Plugin 4.2.3.540.va_6eedb_7b_c112 requires Overall/Administer permission and POST requests to perform these form validation actions.
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