A missing permission check in Jenkins Amazon EC2 Plugin 1.47 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL within the AWS region using attacker-specified credentials IDs obtained through another method.
https://jenkins.io/security/advisory/2020-01-15/#SECURITY-1004
http://www.openwall.com/lists/oss-security/2020/01/15/1
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-2091