Duplicate code

Description

The application's source code has duplicate code, which may cause unexpected behaviors.

Impact

• Reduce the maintainability of the code.
• Facilitate the propagation of errors if the duplicate code contains any vulnerability.

Recommendation

Ensure that source code does not have classes, functions or repeated methods.

Threat

Authenticated attacker from the Internet.

Expected Remediation Time

⌚ minutes.

Score

Default score using CVSS 3.1. It may change depending on the context of the src.

Base

• Attack vector: N
• Attack complexity: H
• Privileges required: L
• User interaction: N
• Scope: U
• Confidentiality: N
• Integrity: N
• Availability: L

Temporal

• Exploit code madurity: U
• Remediation level: X
• Report confidence: X

Result

• Vector string: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:X/RC:X
• Score:
  • Base: 3.1
  • Temporal: 2.9
• Severity:
  • Base: Low
  • Temporal: Low

Compliant code

There is no commented out code in the production environment

app.post("/register", function (req, res) {
  var username = req.body.username
  var password = req.body.password
  User.register(new User({ username: username }),
      password, function (err, user) {
    if (err) {
      return res.render("register");
    }
  });
});

Non compliant code

There is duplicate code with the same functionality in a production stage

app.post("/register", function (req, res) {
  var username = req.body.username
  var password = req.body.password
  User.register(new User({ username: username }),
      password, function (err, user) {
    if (err) {
      return res.render("register");
    }
  });
});
app.post("/register", function (req, res) {
  var username = req.body.username
  var password = req.body.password
  User.register(new User({ username: username }),
      password, function (err, user) {
    if (err) {
      return res.render("register");
    }
  });
});

Requirements

• 162.Avoid duplicate code

Fixes

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