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Administrative credentials stored in cache memory

Description​

It is possible to retrieve administrative credentials from the systems cache memory.

Impact​

Obtain functional credetials for privileged users.

Recommendation​

Avoid the store of sensitive information in temporary files or cache.

Threat​

Authenticated attacker from local network.

Expected Remediation Time​

⌚ 30 minutes.

Score​

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

Base​

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

Temporal​

  • Exploit code madurity: H
  • Remediation level: U
  • Report confidence: C

Result​

  • Vector string: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N/E:H/RL:U/RC:C
  • Score:
    • Base: 5.3
    • Temporal: 5.3
  • Severity:
    • Base: Medium
    • Temporal: Medium

Code Examples​

Compliant code​

Use secure verification methods like correctly set up cookies for session storage

// Use cookies to avoid storing sensitive information
function setCookie(cname, cvalue, exdays) {
  const d = new Date();
  d.setTime(d.getTime() + (exdays*24*60*60*1000));
  let expires = "expires="+ d.toUTCString();
  document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
}

// Get cookie to restore session credentials
function restoreSession(cname){
  userCookie = getcookies(cname);
  if(userCookie){
    restoreSession(user);
  }
}

Non compliant code​

The application uses functionalities like local storage to save sensitive data like a user password

localStorage.setItem('password',user_password);

Requirements​

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