Ruby on Rails XML Processor YAML Deserialization RCE Vulnerability

Summary
The host is installed with Ruby on Rails and is prone to remote command execution vulnerability.
Impact
Successful exploitation could allow attackers to execute arbitrary commands. Impact Level: System/Application
Solution
Upgrade to Ruby on Rails 2.3.15, 3.0.19, 3.1.10, 3.2.11, or higher
Insight
Flaw is due to an error when parsing XML parameters, which allows symbol and yaml types to be a part of the request and can be exploited to execute arbitrary commands.
Affected
Ruby on Rails before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11
References