CAPEC 설명

An attacker modifies the HTTP Verb (e.g. GET, PUT, TRACE, etc.) in order to bypass access restrictions. Some web environments allow administrators to restrict access based on the HTTP Verb used with requests. However, attackers can often provide a different HTTP Verb, or even provide a random string as a verb in order to bypass these protections. This allows the attacker to access data that should otherwise be protected.

CAPEC 정보

사전 조건

The targeted system must attempt to filter access based on the HTTP verb used in requests.

필요 리소스

The attacker requires a tool that allows them to manually control the HTTP verb used to send messages to the targeted server.

완화 방법

Design: Ensure that only legitimate HTTP verbs are allowed.
Design: Do not use HTTP verbs as factors in access decisions.

관련 약점

CWE-ID	약점 이름
CWE-302	Authentication Bypass by Assumed-Immutable Data The authentication scheme or implementation uses key data elements that are assumed to be immutable, but can be controlled or modified by the attacker.
CWE-654	Reliance on a Single Factor in a Security Decision A protection mechanism relies exclusively, or to a large extent, on the evaluation of a single condition or the integrity of a single object or entity in order to make a decision about granting access to restricted resources or functionality.

참고 자료

REF-118

Bypassing Web Authentication and Authorization with HTTP Verb Tampering: How to inadvertently allow attackers full access to your web application
Arshan Dabirsiaghi.
http://mirror.transact.net.au/sourceforge/w/project/wa/waspap/waspap/Core/Bypassing_VBAAC_with_HTTP_Verb_Tampering.pdf

제출

이름	조직	날짜	출시일
CAPEC Content Team	The MITRE Corporation	2014-06-23 +00:00

수정 사항

이름	조직	날짜	댓글
CAPEC Content Team	The MITRE Corporation	2019-09-30 +00:00	Updated Related_Attack_Patterns

CAPEC-274 상세 정보

CAPEC-274