[org.jenkins-ci.plugins:cloud-stats] Missing permission check in Jenkins Cloud Statistics Plugin

Cloud Statistics Plugin 0.26 and earlier does not perform a permission check in an HTTP endpoint.

This allows attackers with Overall/Read permission and knowledge of random activity IDs to view related provisioning exception error messages.

Cloud Statistics Plugin 0.27 requires Overall/Administer permission to access provisioning exception error messages.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-21631
• https://www.jenkins.io/security/advisory/2021-03-30/#SECURITY-2246
• http://www.openwall.com/lists/oss-security/2021/03/30/1
• https://github.com/advisories/GHSA-xv69-6rf3-w5g2