Technical information leak - API

Description

An attacker is able to gather the entire GraphQL API Schema Structure (both queries and mutations).

Impact

Get the knowledge of the Schema Structure to open a door for more dangerous attacks.

Recommendation

Disable introspection queries.

Threat

An anonymous attacker from the Internet network crafts an introspection query.

Expected Remediation Time

⌚ 30 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: X
• Remediation level: W
• 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:X/RL:W/RC:X
• Score:
  • Base: 5.3
  • Temporal: 5.2
• Severity:
  • Base: Medium
  • Temporal: Medium

Requirements

• 077.Avoid disclosing technical information
• 176.Restrict system objects

Fixes

• C-Sharp
• Scala
• Elixir
• Java
• TypeScript
• Ruby
• Go

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