CWE-1385
Missing Origin Validation in WebSockets
2022-04-28
00h00 +00:00
00h00 +00:00
특정 CWE 알림
특정 CWE의 변경 사항에 대한 정보를 받아보세요.
이름: Missing Origin Validation in WebSockets
The product uses a WebSocket, but it does not properly verify that the source of data or communication is valid.
일반 정보
배경 세부 정보
취약점 도입 방식
Architecture and DesignImplementation
적용 가능한 플랫폼
언어
클래스: Not Language-Specific (Undetermined)이름: Go (Undetermined)
기술
클래스: Web Based (Often)이름: Web Server (Undetermined)
일반적인 결과
| 범위 | 영향 | 가능성 |
|---|---|---|
| Confidentiality Integrity Availability Non-Repudiation Access Control | Varies by Context, Gain Privileges or Assume Identity, Bypass Protection Mechanism, Read Application Data, Modify Application Data, DoS: Crash, Exit, or Restart 참고: This makes CSRF attacks more powerful. The consequences will vary depending on the nature of the functionality that is vulnerable to CSRF. An attacker could effectively perform any operations as the victim. If the victim is an administrator or privileged user, the consequences may include obtaining complete control over the web application - deleting or stealing data, uninstalling the product, or using it to launch other attacks against all of the product's users. Because the attacker has the identity of the victim, the scope of the CSRF is limited only by the victim's privileges. |
관찰된 예시
| 참고 자료 | 설명 |
|---|---|
CVE-2020-25095 | web console for SIEM product does not check Origin header, allowing Cross Site WebSocket Hijacking (CSWH) |
CVE-2018-6651 | Chain: gaming client attempts to validate the Origin header, but only uses a substring, allowing Cross-Site WebSocket hijacking by forcing requests from an origin whose hostname is a substring of the valid origin. |
CVE-2018-14730 | WebSocket server does not check the origin of requests, allowing attackers to steal developer's code using a ws://127.0.0.1:3123/ connection. |
CVE-2018-14731 | WebSocket server does not check the origin of requests, allowing attackers to steal developer's code using a ws://127.0.0.1/ connection to a randomized port number. |
CVE-2018-14732 | WebSocket server does not check the origin of requests, allowing attackers to steal developer's code using a ws://127.0.0.1:8080/ connection. |
잠재적 완화 방법
Phases : ImplementationEnable CORS-like access restrictions by verifying the 'Origin' header during the WebSocket handshake.
Phases : Implementation
Use a randomized CSRF token to verify requests.
Phases : Implementation
Use TLS to securely communicate using 'wss' (WebSocket Secure) instead of 'ws'.
Phases : Architecture and Design // Implementation
Require user authentication prior to the WebSocket connection being established. For example, the WS library in Node has a 'verifyClient' function.
Phases : Implementation
Leverage rate limiting to prevent against DoS. Use of the leaky bucket algorithm can help with this.
Phases : Implementation
Use a library that provides restriction of the payload size. For example, WS library for Node includes 'maxPayloadoption' that can be set.
Phases : Implementation
Treat data/input as untrusted in both directions and apply the same data/input sanitization as XSS, SQLi, etc.
취약점 매핑 메모
근거 : This CWE entry is at the Variant level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.댓글 : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.
참고 자료
REF-1257
Cross-Site WebSocket Hijacking (CSWSH)Christian Schneider.
https://christian-schneider.net/blog/cross-site-websocket-hijacking/
REF-1251
WebSockets not Bound by SOP and CORS? Does this mean...Drew Branch.
https://blog.securityevaluators.com/websockets-not-bound-by-cors-does-this-mean-2e7819374acc
REF-1252
How to secure your WebSocket connectionsMehul Mohan.
https://www.freecodecamp.org/news/how-to-secure-your-websocket-connections-d0be0996c556/
REF-1256
Cross-Site WebSocket Hijacking (CSWSH)Vickie Li.
https://medium.com/swlh/hacking-websocket-25d3cba6a4b9
REF-1253
Testing for WebSockets security vulnerabilitiesPortSwigger.
https://portswigger.net/web-security/websockets
REF-1566
Golang Secure Coding Practices guideOWASP.
https://github.com/OWASP/Go-SCP
제출
| 이름 | 조직 | 날짜 | 출시일 | Version |
|---|---|---|---|---|
| Anonymous External Contributor | 4.7 |
수정 사항
| 이름 | 조직 | 날짜 | 댓글 |
|---|---|---|---|
| CWE Content Team | MITRE | updated Description | |
| CWE Content Team | MITRE | updated References, Relationships | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated References | |
| CWE Content Team | MITRE | updated Applicable_Platforms, Weakness_Ordinalities | |
| CWE Content Team | MITRE | updated Applicable_Platforms, Background_Details, Common_Consequences, Description, References, Relationships, Taxonomy_Mappings |
