Security controls bypass or absence - Session Invalidation

Description

A function is implemented in the application that returns the users Main from his session code. However, since the source code used in the debugging phase was left in this functionality, if a session code containing the word auto is used, access is allowed.

Impact

• Exploit the logic introduced by the debugging code to access the application without having credentials.
• Put in a session code the word auto and manage to access the application with a Main used during the testing phase.

Recommendation

Remove the code used during testing.

Threat

Anonymous attacker from the Internet.

Expected Remediation Time

⌚ 60 minutes.

Score

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

Base

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

Temporal

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

Result

• Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:X
• Score:
  • Base: 5.3
  • Temporal: 4.8
• Severity:
  • Base: Medium
  • Temporal: Medium

Requirements

• 062.Define standard configurations
• 266.Disable insecure functionalities

Fixes

• C-Sharp
• Dart
• Elixir
• Python
• Swift
• TypeScript
• Scala
• PHP
• Go
• Ruby
• Java

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