Patch Management / Usage of SSL Version 2 and 3

Description

Usage of SSL Version 2 and 3 is a vulnerability related to Patch Management. It is classified in the Common Weakness Enumeration (CWE) directory as CWE-295: Improper Certificate Validation. This vulnerability affects Web and API systems. According to the OWASP Testing Guide, it occurs when the system relies on certificates and/or public key infrastructure that are not properly validated, allowing attackers to manipulate the data sent over SSL and TLS connections.

Risk

The risk associated with this vulnerability is high and can lead to data theft, data modification, and data tampering. A risk assessment should be conducted to evaluate the potential impact of this vulnerability on an organization’s security posture and to determine the appropriate mitigation strategies.

Solution

The solution to this vulnerability is to ensure that the system is using the latest version of SSL and TLS protocols, and that all certificates are properly validated. Additionally, an organization can use web application firewalls (WAFs) to detect and block malicious traffic.

Example

Below is an example of code using an SSL certificate:

var https = require('https');

var options = {
  key: fs.readFileSync('test/fixtures/keys/agent2-key.pem'),
  cert: fs.readFileSync('test/fixtures/keys/agent2-cert.pem'),
};

https.createServer(options, function (req, res) {
  res.writeHead(200);
  res.end("hello world\n");
}).listen(8000);