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Business information leak - Corporate information

Description​

It is possible to access information about some of the company employees, such as their roles and contact information.

Impact​

Obtain information about the role played by some workers within the company. As well as their contact information.

Recommendation​

Establish controls to prevent an attacker from accessing the organizations corporate information.

Threat​

Attacker with access to the application from the Internet.

Expected Remediation Time​

⌚ 45 minutes.

Score​

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

Base​

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

Temporal​

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

Result​

  • Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:X/RL:X/RC:X
  • Score:
    • Base: 4.3
    • Temporal: 4.3
  • Severity:
    • Base: Medium
    • Temporal: Medium

Code Examples​

Compliant code​

The application restrics only admin users to access the sensitive information

const getUserInfo = (req, res) => {
  const userCredentials = getCredentials(req.body.userId);
  if (isValidUser(req.body.user) && userCredentials == "ADMIN") {
    const requestedUser = req.body.requiredUser;
    res.send(requestedUser.email);
    res.send(requestedUser.phone);
  }
}

Non compliant code​

The application does not validate the user permissions to access the information

const getUserInfo = (req, res) => {
  if (isValidUser(req.body.user)) {
    const requestedUser = req.body.requiredUser;
    res.send(requestedUser.email);
    res.send(requestedUser.phone);
  }
}

Requirements​

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