├── .gitattributes ├── .gitignore ├── LICENSE ├── README.md ├── requirements.txt ├── setup.cfg ├── setup.py └── webctf ├── __init__.py ├── __main__.py ├── main.py └── modules ├── __init__.py ├── comment_find.py ├── cookie_send.py ├── flag_find.py ├── headers_view.py ├── img_source_find.py └── script_source_find.py /.gitattributes: -------------------------------------------------------------------------------- 1 | # Auto detect text files and perform LF normalization 2 | * text=auto 3 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Development 2 | **/__pycache__ 3 | **/*.egg-info 4 | venv/ 5 | # Build 6 | /dist/ 7 | /build/ 8 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Web-CTF-Help 2 | 3 | ## Description 4 | 5 | A simple set of scripts (mainly scrapers for now) intended for aid in web CTFs. Find image sources (and alts), javascript sources and comments. 6 | 7 | ## Usage 8 | 9 | ```bash 10 | usage: webctf [-h] [-v] [--comments] [--scripts] [--images] [--headers] [--cookies COOKIES] [--flags FLAGS] [-f] url 11 | 12 | positional arguments: 13 | url URL of the target website 14 | 15 | optional arguments: 16 | -h, --help show this help message and exit 17 | -v, --version show program's version number and exit 18 | --comments only display HTML comments (default: False) 19 | --scripts only display script sources (default: False) 20 | --images only display image sources (default: False) 21 | --headers only display interesting response headers (combine with -f to display all) (default: False) 22 | --cookies COOKIES add cookies to your request in the following format "name=value;name2=value2" (default: None) 23 | --flags FLAGS search for a flag hidden on the website in the following format "pattern", and will be searched as "pattern\{*\}" (default: None) 24 | -f, --full enable full output for all options (default: False) 25 | ``` 26 | 27 | ```bash 28 | webctf https://example.com 29 | ``` 30 | 31 | Only display HTML comments and script sources: 32 | 33 | ```bash 34 | webctf --comments --scripts https://example.com 35 | ``` 36 | ``` 37 | ============= 38 | COMMENTS 39 | ============= 40 | 41 | [+] 1 : Internal game scripts/styles, mostly boring stuff 42 | [+] 2 : This is our database of messages 43 | 44 | ============= 45 | SCRIPTS 46 | ============= 47 | 48 | [+] 1 : /static/game-frame.js 49 | [+] 2 : /static/post-store.js 50 | ``` 51 | 52 | Only display interesting headers: 53 | 54 | ```bash 55 | webctf --headers https://example.com 56 | ``` 57 | ``` 58 | =================== 59 | INTERESTING HEADERS 60 | =================== 61 | 62 | Server : Google Frontend 63 | ``` 64 | 65 | Display all headers: 66 | 67 | ```bash 68 | webctf --headers -f https://example.com 69 | ``` 70 | ``` 71 | ============= 72 | ALL HEADERS 73 | ============= 74 | 75 | Content-Type : text/html; charset=utf-8 76 | Cache-Control : no-cache 77 | X-Cloud-Trace-Context : df6d1758c776f4fbc4b3bab158818b64;o=1 78 | Date : Fri, 01 Jan 2021 20:19:57 GMT 79 | Server : Google Frontend 80 | Content-Length : 2689 81 | Alt-Svc : h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43" 82 | ``` 83 | Send a request with a cookie and only get comments 84 | 85 | ```bash 86 | webctf --cookies "name1=value1;name2=value2" --comments https://example.com 87 | ``` 88 | ``` 89 | ============== 90 | Using cookies: 91 | ============== 92 | 93 | [+] name1 = value1 94 | [+] name2 = value2 95 | 96 | ============= 97 | COMMENTS 98 | ============= 99 | 100 | [+] 1 : Internal game scripts/styles, mostly boring stuff 101 | ``` 102 | 103 | ## Installation 104 | 105 | ```bash 106 | python3 -m pip install git+https://github.com/xnomas/web-ctf-help.git 107 | ``` 108 | 109 | ## Future plans 110 | 111 | I plan to implement a download function, to download the images, js files and so on. If you have any suggestions feel free to give them to me, 112 | but please keep in mind that I am still a student :) 113 | 114 | ## Thank you! 115 | 116 | Thank you to [sinus-x](https://github.com/sinus-x) for helping! 117 | -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | beautifulsoup4 2 | argparse 3 | requests 4 | re 5 | -------------------------------------------------------------------------------- /setup.cfg: -------------------------------------------------------------------------------- 1 | [metadata] 2 | name = webctf 3 | version = attr: webctf.__version__ 4 | author = Jakub Osmani 5 | 6 | description = HTML source scraper 7 | long_description = file: README.md 8 | long_description_content_type = text/markdown 9 | url = https://github.com/xnomas/web-ctf-help 10 | keywords = ctf, html, scraper 11 | 12 | license = GPL-3.0 License 13 | license_file = LICENSE 14 | 15 | classifiers = 16 | Operating System :: OS Independent 17 | Programming Language :: Python 18 | Programming Language :: Python :: 3 19 | Programming Language :: Python :: 3.6 20 | Programming Language :: Python :: 3.7 21 | Programming Language :: Python :: 3.8 22 | Programming Language :: Python :: 3.9 23 | 24 | [options] 25 | package_dir = 26 | =. 27 | packages = find: 28 | python_requires = >=3.6.1 29 | install_requires = 30 | beautifulsoup4 31 | requests 32 | wheel 33 | 34 | [options.entry_points] 35 | console_scripts = 36 | webctf = webctf.main:main 37 | -------------------------------------------------------------------------------- /setup.py: -------------------------------------------------------------------------------- 1 | from setuptools import setup 2 | 3 | setup() 4 | -------------------------------------------------------------------------------- /webctf/__init__.py: -------------------------------------------------------------------------------- 1 | __version__ = "0.1.1-c" 2 | -------------------------------------------------------------------------------- /webctf/__main__.py: -------------------------------------------------------------------------------- 1 | """Module allowing for ``python -m webctf ...``.""" 2 | from webctf.main import main 3 | 4 | main.main() 5 | -------------------------------------------------------------------------------- /webctf/main.py: -------------------------------------------------------------------------------- 1 | import argparse 2 | import requests 3 | 4 | from bs4 import BeautifulSoup, Comment 5 | 6 | from webctf import __version__ 7 | from .modules.comment_find import Comms 8 | from .modules.script_source_find import Scripts 9 | from .modules.img_source_find import Images 10 | from .modules.headers_view import Headers 11 | from .modules.cookie_send import Cookies 12 | from .modules.flag_find import Flag 13 | 14 | 15 | def main(argv=None): 16 | parser = argparse.ArgumentParser( 17 | prog="webctf", 18 | allow_abbrev=False, 19 | formatter_class=argparse.ArgumentDefaultsHelpFormatter, 20 | ) 21 | parser.add_argument( 22 | "-v", 23 | "--version", 24 | action="version", 25 | version="%(prog)s " + __version__, 26 | ) 27 | # required arguments 28 | parser.add_argument( 29 | "url", 30 | help="URL of the target website", 31 | type=str, 32 | ) 33 | # optional arguments 34 | parser.add_argument( 35 | "--comments", 36 | help="only display HTML comments", 37 | action="store_true", 38 | ) 39 | parser.add_argument( 40 | "--scripts", 41 | help="only display script sources", 42 | action="store_true", 43 | ) 44 | parser.add_argument( 45 | "--images", 46 | help="only display image sources", 47 | action="store_true", 48 | ) 49 | parser.add_argument( 50 | "--headers", 51 | help="only display interesting response headers (combine with -f to display all)", 52 | action="store_true", 53 | ) 54 | parser.add_argument( 55 | "--cookies", 56 | help='''add cookies to your request in the following format "name=value;name2=value2"''', 57 | type=str, 58 | ) 59 | parser.add_argument( 60 | "--flags", 61 | help='''search for a flag hidden on the website in the following format "pattern", and will be searched as "pattern\{*\}"''', 62 | type=str, 63 | ) 64 | parser.add_argument( 65 | "-f", 66 | "--full", 67 | help="enable full output for all options", 68 | action="store_true", 69 | ) 70 | 71 | # get arguments 72 | args = parser.parse_args() 73 | settings = { 74 | "comments": args.comments, 75 | "headers": args.headers, 76 | "images": args.images, 77 | "scripts": args.scripts, 78 | "cookies": args.cookies, 79 | "flags": args.flags, 80 | } 81 | non_default = { 82 | "cookies": args.cookies, 83 | "flags": args.flags, 84 | } 85 | 86 | # If no argument is entered we assume we want to display all information available. 87 | for value in settings.values(): 88 | if value and value not in non_default.values(): 89 | break 90 | else: 91 | # No argument is True, enable everything 92 | for key in settings.keys(): 93 | if key in non_default.keys() and settings[key] == None: 94 | continue 95 | settings[key] = True 96 | 97 | # get webpage 98 | if settings["cookies"]: 99 | cookies = Cookies(args.cookies) 100 | cookies.print() 101 | re = requests.get(args.url, cookies=cookies.get_dict()) 102 | else: 103 | re = requests.get(args.url) 104 | 105 | # print results 106 | if settings["comments"]: 107 | comments = Comms(re.text) 108 | comments.print() 109 | 110 | if settings["scripts"]: 111 | scripts = Scripts(re.text) 112 | scripts.print() 113 | 114 | if settings["images"]: 115 | images = Images(re.text) 116 | images.print() 117 | 118 | if settings["flags"]: 119 | flags = Flag(re.text, args.flags) 120 | flags.print() 121 | 122 | if settings["headers"]: 123 | if args.full: 124 | headers = Headers(re.headers, important_only=False) 125 | else: 126 | headers = Headers(re.headers, important_only=True) 127 | headers.print() 128 | 129 | print() # end with a new line 130 | -------------------------------------------------------------------------------- /webctf/modules/__init__.py: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/xnomas/web-ctf-help/d5df9ae73635702a0ec3badd5dd9ed55b1534740/webctf/modules/__init__.py -------------------------------------------------------------------------------- /webctf/modules/comment_find.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | from bs4 import BeautifulSoup, Comment 3 | import requests 4 | 5 | 6 | class Comms: 7 | def __init__(self, re): # needs a list of comments scraped from website 8 | self.re = re 9 | self.comments = self.find_comments(re) 10 | 11 | 12 | def print(self): # 'pretty print' comments 13 | print("""\n=============\nCOMMENTS\n=============\n""") 14 | 15 | i = 0 16 | for c in self.comments: 17 | i += 1 18 | print(f"[+] {str(i)} : {c}") 19 | 20 | def find_comments(self, re): # scrape for comments in given html response 21 | soup = BeautifulSoup(re, 'html.parser') 22 | 23 | comment_list = soup.find_all(string=lambda text: isinstance(text, Comment)) 24 | 25 | return comment_list 26 | -------------------------------------------------------------------------------- /webctf/modules/cookie_send.py: -------------------------------------------------------------------------------- 1 | 2 | class Cookies: 3 | def __init__(self, cookie_string): 4 | self.cookie_string = cookie_string 5 | self.cookie_dict = self.serialize_cookie(self.cookie_string) 6 | 7 | def print(self): 8 | print("==============\nUsing cookies:\n==============\n ") 9 | 10 | for key in self.cookie_dict: 11 | print(f'[+] {key} = {self.cookie_dict[key]}') 12 | 13 | def get_dict(self): 14 | return self.cookie_dict 15 | 16 | def serialize_cookie(self, cookie_string): 17 | first_split = cookie_string.split(";") 18 | cookie_dict = {} 19 | 20 | for cookie in first_split: 21 | part = cookie.split("=") 22 | cookie_dict[part[0]] = part[1] 23 | 24 | return cookie_dict 25 | -------------------------------------------------------------------------------- /webctf/modules/flag_find.py: -------------------------------------------------------------------------------- 1 | from bs4 import BeautifulSoup 2 | import re # regex 3 | 4 | class Flag: 5 | def __init__(self, request, pattern): 6 | self.request = request 7 | self.pattern = pattern 8 | self.flags = self.find_flag(request, pattern) 9 | 10 | def print(self): 11 | print("""\n=============\nHIDDEN FLAGS\n=============\n""") 12 | 13 | i = 0 14 | for f in self.flags: 15 | i += 1 16 | print(f'[+] {i} : {f}') 17 | 18 | def find_flag(self, request, pattern): 19 | soup = BeautifulSoup(request, 'html.parser') 20 | # find the flag according to pattern 21 | found = soup.body.find_all(text=re.compile('^'+pattern+'{\w*\W*}')) 22 | 23 | return found -------------------------------------------------------------------------------- /webctf/modules/headers_view.py: -------------------------------------------------------------------------------- 1 | import requests 2 | 3 | class Headers: 4 | def __init__(self, re, important_only: bool): 5 | self.re = re 6 | self.important_only = important_only 7 | self.headers = self.get_headers(re, important_only) 8 | 9 | def get_headers(self, re, important_only: bool): 10 | if important_only: 11 | headers = { h:re.get(h) for h in re if is_important_header(h)} 12 | return headers 13 | 14 | headers = {h:re.get(h) for h in re} 15 | return headers 16 | 17 | 18 | def print(self): 19 | if self.important_only: 20 | print("""\n===================\nINTERESTING HEADERS\n===================\n""") 21 | for h in self.headers: 22 | print(f'{h} : {self.headers.get(h)}') 23 | 24 | else: 25 | print("""\n=============\nALL HEADERS\n=============\n""") 26 | for h in self.headers: 27 | print(f'{h} : {self.headers.get(h)}') 28 | 29 | 30 | def is_important_header(check): 31 | important_headers = { 32 | 'cookie' : 1, 33 | 'set-cookie' : 2 , 34 | 'access-control-allow-origin' : 3, 35 | 'access-control-allow-credentials' : 4, 36 | 'access-control-allow-headers' : 5, 37 | 'access-control-allow-methods' : 6, 38 | 'server' : 7, 39 | 'cross-origin' : 8, 40 | 'content-security-policy' : 9, 41 | 'upgrade-insecure-requests' : 10, 42 | 'x-frame-options' : 11, 43 | 'x-permitted-cross-domain-policies' : 12, 44 | 'x-powered-by' : 13 45 | } 46 | 47 | if important_headers.get(check.lower()) is not None: 48 | return True 49 | return False 50 | -------------------------------------------------------------------------------- /webctf/modules/img_source_find.py: -------------------------------------------------------------------------------- 1 | from bs4 import BeautifulSoup 2 | import requests 3 | 4 | class Images: 5 | def __init__(self, re): 6 | self.re = re 7 | self.image_srcs = self.find_sources(re, True) 8 | self.image_alts = self.find_sources(re, False) 9 | 10 | def print(self): 11 | print("""\n=============\nIMAGES\n=============\n""") 12 | 13 | i = 0 14 | print("sources:\n--------") 15 | for img in self.image_srcs: 16 | i += 1 17 | print(f"[+] {str(i)} : {img}") 18 | 19 | print("\nalts:\n-----") 20 | i = 0 21 | for alt in self.image_alts: 22 | i += 1 23 | print(f"[+] {str(i)} : {alt}") 24 | 25 | def find_sources(self, re, sources): 26 | soup = BeautifulSoup(re, "html.parser") 27 | 28 | first_img = soup.find_all("img") 29 | 30 | img_srcs = [] 31 | 32 | if sources: 33 | for img in first_img: 34 | img_srcs.append(img["src"]) 35 | else: 36 | for img in first_img: 37 | if img.has_attr("alt"): 38 | img_srcs.append(img["alt"]) 39 | else: 40 | img_srcs.append("No alt") 41 | return img_srcs 42 | -------------------------------------------------------------------------------- /webctf/modules/script_source_find.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | from bs4 import BeautifulSoup 3 | import requests 4 | 5 | class Scripts: 6 | def __init__(self, re): 7 | self.re = re 8 | self.source_list = self.find_srcs(re) 9 | 10 | def print(self): 11 | print("""\n=============\nSCRIPTS\n=============\n""") 12 | 13 | i = 0 14 | for src in self.source_list: 15 | i += 1 16 | print(f"[+] {str(i)} : {src}") 17 | 18 | def find_srcs(self, re): 19 | soup = BeautifulSoup(re, 'html.parser') 20 | 21 | scripts = soup.find_all('script') 22 | 23 | source_list = [] 24 | for s in scripts: 25 | if s.has_attr("src"): 26 | source_list.append(s["src"]) 27 | 28 | return source_list --------------------------------------------------------------------------------