CVE-2018-16477: Exposure of Sensitive Information to an Unauthorized Actor

November 30, 2018 (updated October 9, 2019)

A bypass vulnerability in Active Storage for Google Cloud Storage and Disk services allow an attacker to modify the content-disposition and content-type parameters which can be used in with HTML files and have them executed inline. Additionally, if combined with other techniques such as cookie bombing and specially crafted AppCache manifests, an attacker can gain access to private signed URLs within a specific storage path. This vulnerability has been fixed

References

groups.google.com/d/msg/rubyonrails-security/3KQRnXDIuLg/mByx5KkqBAAJ
nvd.nist.gov/vuln/detail/CVE-2018-16477
weblog.rubyonrails.org/2018/11/27/Rails-4-2-5-0-5-1-5-2-have-been-released/

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