PWN.COLLEGE Talking Web

Complete solutions for Talking web pwn college. Complete writeup of all challenges

Challenge 1

Challenge 2

Challenge 3

Challenge 4

Challenge 5

double enter at the end of host

Challenge 6

Challenge 7

Challenge 8

Challenge 9

Challenge 10

Challenge 11

Challenge 12

Challenge 13

Challenge 14

Challenge 15

Challenge 16

url encode & , space and % in argument b

Challenge 17

Challenge 18

                                                       req4.python                                                                    
import requests

# Define the URL and headers
url = 'http://localhost?a=5c058979bd37fb3503512c58bd11c8b6&b=2ea09e1b%20c567af01%26b7e9b6c5%239a51c800'
headers = {
    'Host': '48f80bbb6183538f3d323f99d7c397fb'
}

# Send the GET request
response = requests.get(url, headers=headers)

# Print the response
print(response.text)

Challenge 19

-d is used to send form data

Challenge 20

echo -e "POST / HTTP/1.1\r\nHost: localhost\r\nContent-Type: application/x-www-form-urlencoded\r\nContent-Length: 34\r\n\r\na=eeb6c038eac69a4a652014ff7dabc2a8\r\n" | nc localhost 80

Challenge 21

import requests

# Define the URL and headers
url = 'http://localhost'

data={'a':'670e4fa6103d6c493ad241b2959c0ace'}
# Send the POST request
response = requests.post(url, data=data)
# Print the response
print(response.text)

Challenge 22

curl localhost -d'a=09084bc0ced7092b5b25fa997bf48df8&b=e3cc5d01%202802266d%2696574197%23ee3d8e3b'

Challenge 23

hacker@talking-web~level23:~$ echo -e "POST / HTTP/1.1\r\nHost: localhost\r\nContent-Type: application/x-www-form-urlencoded\r\nContent-Length: 78\r\n\r\na=34418b28c1bd8f7875b9ea814fe8910f&b=712c2671%208187e24d%2639f2bac0%2399e800dc\r\n" | nc localhost 80
HTTP/1.1 200 OK
Server: Werkzeug/3.0.3 Python/3.8.10
Date: Wed, 31 Jul 2024 14:54:11 GMT
Content-Length: 58
Server: pwn.college
Connection: close

pwn.college{k0i2uG0ghQ2XEvZQJLcm85lmPMG.dBTOyMDL5QTM2QzW}

Challenge 24

import requests

# Define the URL and headers
url = 'http://localhost'

data={'a':'03ac7b18eea1c8cdac98e2f43bdbba2b','b':'179d5171 189a9751&d671a87f#65>
# Send the POST request
response = requests.post(url, data=data)
# Print the response
print(response.text)
no need to manually encode

Challenge 25

curl -H "Content-Type: application/json" -d '{"a":"value1"}' localhost

Challenge 26

echo -e "POST / HTTP/1.1\r\nHost: localhost\r\nContent-Type: application/json\r\nContent-Length: 40\r\n\r\n{\"a\":\"142c3c13b4bfc8da044d69998d75da0d\"}\r\n" | nc localhost 80
HTTP/1.1 200 OK
Server: Werkzeug/3.0.3 Python/3.8.10
Date: Wed, 31 Jul 2024 15:17:30 GMT
Content-Length: 58
Server: pwn.college
Connection: close

pwn.college{co1WKjSkwNrExurzl1L7UHonZ5p.dNTOyMDL5QTM2QzW}

Challenge 27

import requests

# Define the URL and headers
url = 'http://localhost'

data={'a':'3d33683d50e6291b6fdb74f3cb5f9927'}
# Send the POST request
response = requests.post(url, json=data)
# Print the response
print(response.text)

Challenge 28

curl -X POST localhost -H "Content-Type: application/json" -d '{"a": "dc7f7f3347fdb41e5c5823ac1793495b", "b": {"c": "361b9f79", "d": ["9d33c82d", "7bbb9b0e 28c1d450&25ff1c63#ad0888bc"]}}'

Challenge 29

echo -e "POST / HTTP/1.1\r\nHost: localhost\r\nContent-Type: application/json\r\nContent-Length: 125\r\n\r\n{\"a\": \"f4526161060c8cc0ed658b71c7bc5dd2\", \"b\": {\"c\": \"1f0da1fe\", \"d\": [\"86d7ab98\", \"8df6fc66 a482ffe5&347ce851#80bb9423\"]}}\r\n" | nc localhost 80HTTP/1.1 200 OK
Server: Werkzeug/3.0.3 Python/3.11.9
Date: Thu, 01 Aug 2024 17:09:24 GMT
Content-Length: 58
Server: pwn.college
Connection: close

pwn.college{MvnBatKEB_M0OUIiXu_H0qrECBk.dZTOyMDL5QTM2QzW}

Challenge 30

import requests

# Define the URL and headers
url = 'http://localhost'
data = {
    "a": "8c5402a42040dda391e23b48c0a650b2", 
    "b": {
        "c": "ebf001fe", 
        "d": ["023b07b0", "b6003939 e92a012a&9a2a763c#02944590"]
    }
}

# Send the POST request
response = requests.post(url, json=data)

# Print the response
print(response.text)

Challenge 31

dash L option

Challenge 32

Manually make 2xrequests

Challenge 33

python auto handles redirects

Challenge 34

first inspect the header to get the cookie value
Now set the cookie

Challenge 35

You do need to set the host

Challenge 36

Challenge 37

The -b and -c parameters in curl are used to handle cookies:

  • -b or --cookie: This option specifies the file containing the cookies to be sent with the HTTP request. It can also be used to pass cookies directly in the request.

  • -c or --cookie-jar: This option specifies the file where cookies received from the server should be saved after the request is completed.

Challenge 38

#!/bin/bash

# Initialize the state and cookie
state=0
cookie=""

# Function to make an HTTP request and capture the response
make_request() {
    request="GET / HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n"
    if [ -n "$cookie" ]; then
        request+="Cookie: $cookie\r\n"
    fi
    request+="\r\n"

    response=$(echo -e "$request" | nc localhost 80)
    echo "$response"
}

# Function to extract the state and cookie from the response
extract_state_and_cookie() {
    response="$1"
    state=$(echo "$response" | grep -oP '(?<=state: )\d+')
    cookie=$(echo "$response" | grep -oP '(?<=Set-Cookie: )[^;]+')
}

# Infinite loop to handle stateful interactions
while true; do
    echo "Making request with state: $state..."
    
    # Make the request and capture the response
    response=$(make_request)
    
    # Extract the state and cookie from the response
    extract_state_and_cookie "$response"
    
    # Print the response, current state, and cookie
    echo "Response: $response"
    echo "Current State: $state"
    echo "Cookie: $cookie"
    
    # Increment the state
    state=$((state + 1))
    
    # Sleep for a short time before the next request to avoid rapid polling (optional)
    sleep 1
done

Challenge 39

import requests as r

host = "http://127.0.0.1/"

# First request
response1 = r.get(host)
cookie1 = response1.cookies

# Second request using cookies from the first response
response2 = r.get(host, cookies=cookie1)
cookie2 = response2.cookies

# Third request using cookies from the second response
response3 = r.get(host, cookies=cookie2)
cookie3 = response3.cookies

# Fourth request using cookies from the third response
response4 = r.get(host, cookies=cookie3)
cookie4 = response4.cookies 

# Print the response of the fourth request
print(response4.text)

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