Lack of data validation - Headers

Description

In the source code the information of some HTTP headers is not being validated, so different values could be injected in order to achieve some XSS attack or compromise the integrity of the stored information.

Impact

Inject potentially dangerous characters into application fields.

Recommendation

Validate on the server side the types of data that are entered into different kind of fields in the application.

Threat

Authorized user 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: L
• Privileges required: L
• User interaction: N
• Scope: U
• Confidentiality: N
• Integrity: L
• Availability: N

Temporal

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

Result

• Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
• Score:
  • Base: 4.3
  • Temporal: 3.9
• Severity:
  • Base: Medium
  • Temporal: Low

Requirements

• 173.Discard unsafe inputs
• 320.Avoid client-side control enforcement
• 342.Validate request parameters

Fixes

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

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