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Insecure service configuration

Description​

No requestValidationMode is assigned in the server configuration files, which would allow XSS attacks.

Impact​

Obtain sensitive information through XSS attacks.

Recommendation​

Activate the recommended protection mechanisms as Request validation.

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 vulnerability.

Base​

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

Temporal​

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

Result​

  • Vector string: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:R
  • Score:
    • Base: 3.1
    • Temporal: 2.7
  • Severity:
    • Base: Low
    • Temporal: Low

Code Examples​

Compliant code​

The application enables request Validation mode

<system.web>
    <compilation debug="true" targetFramework="4.0" />
    <httpRuntime requestValidationMode="2.0" />
</system.web>

Non compliant code​

The application does not request validation mode

<system.web>
    <compilation debug="true" targetFramework="4.0" />
    <httpRuntime requestValidationMode=None />
</system.web>

Requirements​