Vulnerabilities > CVE-2021-4236 - NULL Pointer Dereference vulnerability in web Project web 1.4.0/1.5.0/1.5.1

047910
CVSS 9.8 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
web-project
CWE-476
critical

Summary

Web Sockets do not execute any AuthenticateMethod methods which may be set, leading to a nil pointer dereference if the returned UserData pointer is assumed to be non-nil, or authentication bypass. This issue only affects WebSockets with an AuthenticateMethod hook. Request handlers that do not explicitly use WebSockets are not vulnerable.

Vulnerable Configurations

Part Description Count
Application
Web_Project
3

Common Weakness Enumeration (CWE)