Broken Access Control
Access control enforces policy such that users cannot act outside of their intended permissions. Failures typically lead to unauthorized information disclosure, modification, or destruction of data. Now includes SSRF.
개요
Maintains its position at #1 as the most critical web application security risk. 3.73% of applications tested had one or more of the 40 CWEs mapped to this category. Server-Side Request Forgery (SSRF) has been consolidated into this category, reflecting the impact SSRF has on access controls.
공격자가 이것을 악용하는 방법
공격 패턴을 이해하면 더 나은 방어를 구축하는 데 도움이 됩니다. 이것들은 보안 팀이 주시하는 기술입니다.
Parameter tampering
An attacker modifies URL parameters or hidden form fields to access unauthorized resources. For example, changing an account number in a URL to view another user's data.
Forced browsing
An attacker accesses pages that should require authentication by directly entering the URL, bypassing the intended navigation flow.
Server-Side Request Forgery (SSRF)
The server is manipulated to make requests to internal services or cloud metadata endpoints, bypassing network access controls.
예방 방법
- Except for public resources, deny by default
- Implement access control mechanisms once and reuse throughout the application
- Model access controls should enforce record ownership
- Disable web server directory listing and ensure metadata files are not present
- Log access control failures and alert admins when appropriate
- Rate limit API and controller access to minimize automated attack tooling
- Invalidate stateful session identifiers on logout
- Validate and sanitize user-supplied URLs before server-side requests
Shoulder 탐지가 있는 CWE (13)
이 CWE들은 Shoulder 탐지 규칙이 있습니다. 클릭하여 특정 취약점과 수정 사항을 확인하세요.
기타 매핑된 CWE (22)
이 CWE들은 이 카테고리에 매핑되어 있지만 아직 Shoulder 규칙이 없습니다.