{"id":2187,"date":"2020-11-24T03:22:24","date_gmt":"2020-11-23T19:22:24","guid":{"rendered":"https:\/\/sforest.in\/?p=2187"},"modified":"2020-11-24T03:22:24","modified_gmt":"2020-11-23T19:22:24","slug":"wctf2020-as-misc-player","status":"publish","type":"post","link":"https:\/\/sforest.in\/ja\/wctf2020-as-misc-player\/","title":{"rendered":"WCTF2020\u65b0\u9510\u8d5b\uff1a\u4e00\u4e2aMisc\u9009\u624b\u7684\u89c6\u89d2"},"content":{"rendered":"<p>\u5176\u5b9e\u998b\u90a3\u53ea\u718a\u732b\u5f88\u4e45\u4e86\uff0c\u770b\u8d77\u6765\u6bdb\u8338\u8338\u7684\u53c8\u5f88\u6709\u7cbe\u795e\u3002<\/p>\n\n\n\n<p>\u4f46\u6bd5\u7adf\u662f\u56fd\u5185\u6863\u6b21\u8f83\u9ad8\u7684CTF\u8d5b\u4e8b\uff0c\u672c\u5783\u573eWeb\u53ea\u5b66\u4e86\u4e2a\u76ae\u6bdb\uff0c\u4e8c\u8fdb\u5236\u53c8\u662f\u4e00\u70b9\u4e0d\u4f1a\uff0c\u62a5\u540dWCTF\u7684\u65f6\u5019\u826f\u5fc3\u4e0a\u8fd8\u662f\u6709\u70b9\u8fc7\u4e0d\u53bb\u7684\uff0c\u5c31\u6015\u6447\u8eab\u4e00\u53d8\u62d6\u6cb9\u74f6\u3002\u4e0d\u8fc7\u6bd5\u7adf\u53ef\u4ee5\u8fdc\u7a0b\u534f\u4f5c\uff0c\u5c31\u8fd8\u662f\u62a5\u4e86\u4e0a\u53bb\u3002<\/p>\n\n\n\n<p>\u7ed3\u679c\u4e0a\u6765\u8bf4\uff0c\u51fa\u4e86\u4e94\u9898\uff0c\u62ff\u5230\u4e86\u4e9a\u519b\uff0c\u5176\u4e2d\u4e24\u4e2a\u975e\u9884\u671f\uff0c\u4e00\u4e2aPwn\uff0c\u4e24\u4e2aWeb\uff0c\u4e5f\u7b97\u662f\u6ca1\u6709\u767d\u53bb\u5427\u3002\u53ea\u80fd\u8bf4\u8fd9\u6b21\u8fd0\u6c14\u5f88\u597d\uff0c\u6253\u7684\u5f88\u5feb\u4e50\u3002<\/p>\n\n\n\n<!--more 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2<\/h1>\n\n\n\n<p>\u7f8e\u597d\u7684\u4e00\u5929\u4ece\u65e9\u996d\u5f00\u59cb\uff08\u7761\u773c\u6726\u80e7\uff09\u3002<\/p>\n\n\n\n<p>\u4e00\u5230\u8d5b\u573a\uff0c\u6628\u5929\u7684\u5de5\u4f5c\u4eba\u5458\u5c31\u8fc7\u6765\u95ee\u6211\u201c\u626b\u96f7\u626b\u51fa\u6765\u4e86\u5417\uff1f\u201d\uff1b\u6211\u53ea\u5f97\u82e6\u7b11\u4e00\u58f0\u201c\u626b\u5f97\u51fa\u6765\u5417\u201d\u3002<\/p>\n\n\n\n<p>\u6ca1\u591a\u4e45\uff0c\u626b\u96f7\u7684\u6e90\u7801\u5c31\u653e\u4e86\u51fa\u6765\uff0c\u6211\u4e00\u773c\u5c31\u55b5\u5230\u4e00\u4e2a\u4f5c\u5f0a\u7801\uff0c\u556a\u7684\u4e00\u4e0b\u6572\u4e86\u51fa\u6765\uff0c\u5f88\u5feb\u554a\u3002\u521a\u624d\u90a3\u4e2a\u5de5\u4f5c\u4eba\u5458\u53c8\u6765\u95ee\u6211\uff0c\u201c\u770b\u5230\u6e90\u7801\u4e86\u5417\uff1f\u201d\u201c\u770b\u5230\u4e86\u770b\u5230\u4e86\u201d\uff0c\u6211\u4e09\u4e0b\u4e94\u9664\u4e8c\u5c31\u5728\u672c\u5730DEBUG\u628a\u96f7\u7ed9\u626b\u51fa\u6765\u4e86\u3002<\/p>\n\n\n\n<p>\u53ef\u662f\u8fdc\u7a0b\u73af\u5883\u5b83RUST_LOG=info\uff0c\u6ca1\u7528\u554a\uff1f<\/p>\n\n\n\n<p>\u90a3\u3001\u90a3\u6211\u5c31RDP\u6253\u5b83\u5427\u3002shell\u8bbe\u6210logoff\uff0c\u770b\u6765\u662f\u53ea\u80fdRemoteApp\u8fde\u4e86\uff1b\u5404\u79cd\u53c2\u6570\u4e00\u901a\u4e71\u8c03\uff0c\u4e5f\u6ca1\u8c03\u51fa\u4e2a\u4ec0\u4e48\u73a9\u610f\u3002<\/p>\n\n\n\n<p>\u53ef\u662f\u8fd9\u662fmisc\u554a\uff1f\u8fd9\u90fd\u505a\u4e0d\u51fa\u6765\u6211\u4e0d\u5c31\u5931\u53bb\u5b58\u5728\u610f\u4e49\u4e86\u5417\uff08\u7edd\u671b\uff09<\/p>\n\n\n\n<p>\u7ee7\u7eed\u7ffb\u6587\u6863\uff0c\u554a\uff0c\u7ffb\u6587\u6863\u3002<\/p>\n\n\n\n<p>\u770b\u5230\u4e00\u4e2a\u914d\u7f6e\u9879\u662f\u201ckeyboardhook:i:value\u201d\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>\u786e\u5b9a\u4f55\u65f6\u5c06 Windows \u952e\u7ec4\u5408\uff08WIN \u952e\u3001ALT + TAB\uff09\u5e94\u7528\u5230\u684c\u9762\u8fde\u63a5\u7684\u8fdc\u7a0b\u4f1a\u8bdd\u3002<\/td><\/tr><\/tbody><\/table><figcaption>https:\/\/docs.microsoft.com\/zh-cn\/windows-server\/remote\/remote-desktop-services\/clients\/rdp-files <\/figcaption><\/figure>\n\n\n\n<p>\u6211\u4e00\u4e2a\u6fc0\u7075\uff0c\u80fd\u4e0d\u80fd\u6309\u4e2a\u4efb\u52a1\u7ba1\u7406\u5668\u51fa\u6765\u554a\uff1f\u4e00\u67e5\uff0cCtrl+Alt+Del\u8c03\u4e0d\u51fa\u6765\uff0c\u4f46\u662f\u53ef\u4ee5\u7528Ctrl+Alt+End\uff01\u867d\u7136\u53ea\u6709Lock\u548cLogout\u4e24\u4e2a\u9009\u9879\uff0c\u4f46\u662f\u53f3\u4e0b\u89d2\u6709\u4e2a\u5565\u554a\uff0c\u6709\u4e2aWindows\u8f85\u52a9\u5de5\u5177\u554a\uff01<\/p>\n\n\n\n<p>On-Screen Keyboard\uff0c\u542f\u52a8\uff01Options\uff01\u63a7\u5236\u9762\u677f\uff0c\u51fa\u73b0\uff01<\/p>\n\n\n\n<p>\u8fd9\u53ef\u771f\u662f\u592a\u8349\u4e86\uff0c\u6700\u540e\u8fde\u626b\u96f7\u90fd\u6ca1\u626b\uff0c\u53cc\u51fb\u6253\u5f00flag.txt\u7ed3\u675f\u6e38\u620f\u2026\u2026<\/p>\n\n\n\n<p>\u6211\u5f53\u573a\u5c31\u4e00\u8e66\u4e00\u8df3\u7684\u51fa\u53bb\u62ff\u4e86\u4e00\u4e2a\u5e03\u4e01\u56de\u6765\u63a5\u7740\u5403\u3002\u597d\u5403\u3002\u5de5\u4f5c\u4eba\u5458\u8fc7\u6765\u786e\u8ba4\u4e86\u4e00\u4e0b\uff0c\u5b83\u662f\u4e2a\u975e\u9884\u671f\uff08\u5f53\u7136\u5566\uff09\u3002<\/p>\n\n\n\n<p>\u4e8b\u540e\u770b\u9898\u89e3\uff0c\u6b63\u89e3\u662f\u65f6\u95f4\u6d4b\u4fe1\u9053\u653b\u51fb\u3002\u867d\u7136\u8089\u773c\u89c2\u5bdf\u4e0d\u51fa\u6765\uff0c\u4f46\u662f\u5199\u811a\u672c\u662f\u6709\u529e\u6cd5\u89e3\u7684\uff1b\u53ea\u53ef\u60dc\u2026\u2026\u88ab\u975e\u9884\u671f\u4e86\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\u670b\u53cb\u4eec\u597d\u554a\u6211\u662fwctf2020\u7684minesweeper-extreme\u3002 \u521a\u624d\u6709\u4e2a\u670b\u53cb\u95ee\u6211\u53d1\u751f\u4ec0\u4e48\u4e8b\u4e86\uff0c\u6211\u8bf4\u600e\u4e48\u56de\u4e8b\uff0c\u7ed9\u6211\u53d1\u4e86\u51e0\u5f20\u622a\u56fe\uff0c\u6211\u4e00\u770b\uff01\u55f7\uff01\u539f\u6765\u662f\u6628\u5929\uff0c\u6709\u51e0\u4e2a\u9ed1\u5ba2\uff0c\u5e26\u7740\u7535\u8111\uff0c\u4e00\u4e2a\u5341\u591a\u5c81\uff0c\u51e0\u4e2a\u4e2a\u4e8c\u5341\u591a\u5c81\uff0c\u4ed6\u4eec\u8bf4\uff0c\u54ce\u2026\u6709\u4e00\u4e2a\u8bf4\u662f\u6211\u4eec\u6218\u961f\u5728\u5feb\u88abwctf\u8e22\u4e86\uff0cminesweeper\u4f60\u80fd\u4e0d\u80fd\u7ed9\uff0c\u54ce\u2026\u5e2e\u52a9\u4e00\u4e0b\uff0c\u8fd9\u4e2a\u53ef\u601c\u7684\u6218\u961f\uff0c\u6211\u8bf4\u53ef\u4ee5\u3002\u6211\u8bf4\u4f60\u5f00ida\u9006\u5411rust\u4e0d\u597d\u7528\uff0c\u4ed6\u4e0d\u670d\u6c14\u3002\u6211\u8bf4\u5c0f\u670b\u53cb\uff1a\u8bbe\u7f6erust_log\uff1dinfo\u7ed9\u4f60rdp\u6765\u767b\u6211\u8fdc\u7a0b\u73a9\u626b\u96f7\uff0c\u6211\u8fd8\u7ed9\u4f60\u6e90\u7801\uff0c\u4ed6\u73a9\u4e0d\u52a8\u626b\u96f7\u3002\u4ed6\u8bf4\u4f60\u8fd9\u626b\u96f7\u6ca1\u7528\u6211\u8bf4\u6211\u8fd9\u4e2a\u6709\u7528\uff0c\u8fd9\u662f\u53ea\u80fd\u4fa7\u4fe1\u9053\uff0c\u9884\u671f\u601d\u8def\u662f\u8bb2\u57fa\u4e8e\u65f6\u95f4\u7684\u4fa7\u4fe1\u9053\u653b\u51fb\u3002\u518d\u725b\u903c\u7684\u9ed1\u5ba2\uff0c\u4e24\u5929\u90fd\u65e5\u4e0d\u52a8\u6211\u8fd9\u4e2a\u670d\u52a1\u5668\uff0c\u554a\u2026\u54c8\uff01\u4ed6\u975e\u548c\u6211\u8bd5\u624b\uff0c\u6211\u8bf4\u53ef\u4ee5\u3002\u8bf6\u2026\u6211\u4e00\u8bf4\u5462\u556a\u5c31\u7ad9\u8d77\u6765\u4e86\uff0c\u5f88\u5feb\u554a\uff01\u7136\u540e\u4e0a\u6765\u5c31\u662f\u4e00\u4e2ashift*5\u4e00\u4e2acmd\u5c5e\u6027\u4e00\u4e2actrl\uff0balt\uff0bdelete\uff0c\u6211\u5168\u90e8\u9632\u51fa\u53bb\uff0c\u9632\u51fa\u53bb\u4e86\u554a\uff0c\u9632\u51fa\u53bb\u4ee5\u540e\u81ea\u7136\u662f\u4f20\u7edfctf\u4ee5\u70b9\u5230\u4e3a\u6b62\u53ea\u662f\u6ca1\u7ed9\u4ed6flag\uff0c\u6211\u7b11\u4e00\u4e0b\u51c6\u5907\u5173\u95ed\u7c98\u6ede\u952e\uff0c\u7531\u4e8e\u8fd9\u65f6\u95f4\uff0c\u6309\u4f20\u7edfctf\u7684\u70b9\u5230\u4e3a\u6b62\u4ed6\u5df2\u7ecf\u8f93\u4e86\u3002\u554a\uff0c\u6211\u5173\u95ed\u7c98\u6ede\u952e\u7684\u65f6\u95f4\u4e0d\u6253\u4e86\uff0c\u4ed6\u7a81\u7136\u88ad\u51fbctrl\uff0balt\uff0bend\u6765\u6253\u6211\uff0c\u6211\u5927\u610f\u4e86\u554a\uff0c\u6ca1\u6709\u95ea\uff0c\u54ce\u2026\u4ed6\u7684\u64cd\u4f5c\u7ed9\u6211\u952e\u76d8\uff0c\u554a\uff0c\u865a\u62df\u952e\u76d8\uff0c\u8e6d\u4e86\u4e00\u4e0b\uff0c\u4f46\u6ca1\u5173\u7cfb\u554a\uff01\u4ed6\u4e5f\u8bf4\uff0c\u554a\u4ed6\u622a\u56fe\u4e5f\u8bf4\u4e86\uff0c\u4e24\u5206\u591a\u949f\u4ee5\u540e\uff0c\u5f53\u65f6\u6253\u5f00\u8f93\u5165\u6cd5\u4e86\uff0c\u53c8\u6253\u5f00\u4e86\u63a7\u5236\u9762\u677f\uff0c\u6211\u8bf4\u505c\u505c\u3002\u7136\u540e\u4e24\u5206\u591a\u949f\u4ee5\u540e\uff0c\u4e24\u5206\u591a\u949f\u4ee5\u540e\u8bf6\u5c31\u597d\u4e86\uff0c\u6211\u8bf4\u5c0f\u4f19\u5b50\u4f60\u4e0d\u8bb2\u9884\u671f\u89e3\u4f60\u4e0d\u61c2\uff0c\u4ed6\u8bf4minesweeper\u5bf9\u4e0d\u8d77\uff0c\u5bf9\u4e0d\u8d77\uff0c\u6211\u4e0d\u61c2\u89c4\u77e9\u3002\u554a\uff0c\u6211\u662f\u2026\u4ed6\u8bf4\u4ed6\u662f\u4e71\u6253\u7684\uff0c\u4ed6\u53ef\u4e0d\u662f\u4e71\u6253\u7684\u554a\uff0coption\uff0c\u8d85\u94fe\u63a5\uff0c\u63a7\u5236\u9762\u677f\uff0c\u6587\u4ef6\u7cfb\u7edf\uff0c\u8bad\u7ec3\u6709\u7d20\uff0c\u540e\u6765\u4ed6\u8bf4\u4ed6\u7ec3\u8fc7\u4e24\u4e09\u5e74misc\uff0c\u554a\uff0c\u770b\u6765\u662f\u6709\u5907\u800c\u6765\uff01\u8fd9\u51e0\u4e2a\u5e74\u8f7b\u4eba\u4e0d\u8bb2\u9884\u671f\u601d\u8def\uff0c\u6765\u9a97\uff01\u6765\u5077\u88ad\uff01\u6211minesweeper remoteapp\uff0c\u8fd9\u597d\u5417\uff1f\u8fd9\u4e0d\u597d\uff0c\u6211\u529d\u8fd9\u51e0\u4f4d\u5e74\u8f7b\u4eba\u597d\u81ea\u4e3a\u4e4b\uff0c\u597d\u597d\u53cd\u601d\uff0c\u4ee5\u540e\u4e0d\u8981\u518d\u72af\u8fd9\u6837\u7684\u806a\u660e\uff0c\u5c0f\u806a\u660e\u554a\uff0cctf\u8981\u4ee5\u548c\u4e3a\u8d35\uff0c\u8981\u8bb2\u9884\u671f\u89e3 \uff0c\u4e0d\u8981\u641e\u4e71\u4e03\u516b\u7cdf\u7684\u975e\u9884\u671f\uff0c\u8c22\u8c22\u670b\u53cb\u4eec\uff01<\/p><cite>&#8212; Q4n @ Qzone<\/cite><\/blockquote>\n\n\n\n<p><\/p>\n\n\n\n<p>\u5728\u6211\u4eec\u51fa\u626b\u96f7\u4e4b\u524d\uff0cQ4n\u548cMsk\u6574\u51fa\u4e86\u4e00\u9053Pwn\uff0c\u73b0\u5728\u4e00\u4e0b\u5b50\u5c31\u8e6d\u5230\u4e86Rank 2\uff1b\u53ef\u8fd8\u80fd\u505a\u4e9b\u4ec0\u4e48\u5462\uff1f\u6709\u9053EOS\u9898\uff0c\u6682\u4e14\u5148\u770b\u770b\u5427\u3002\u8fd9\u4e2aEOS\u94fe\u4e0a\u7684producers\u7684\u79c1\u94a5\u516c\u94a5\u90fd\u7ed9\u4e86\uff0c\u5e94\u8be5\u7a0d\u5fae\u73a9\u4e00\u73a9\u80fd\u73a9\u51fa\u6765\uff1f<\/p>\n\n\n\n<p>\u4e8e\u662f\u6211\u628a\u961f\u53cb\u4eec\u6253\u53d1\u4e0a\u53bb\u5403\u996d\uff08\u8336\u6b47\u5403\u592a\u591a\u4e86\uff09\uff0c\u81ea\u5df1\u4e00\u4e2a\u4eba\u7559\u5728\u4e0b\u9762\u73a9\u3002<\/p>\n\n\n\n<p>\u7b49\u7b49\uff0c\u4e3a\u4ec0\u4e48\u8bf7\u6c42eosio eosio producers\u5b83\u7ed3\u679c\u4e0d\u4e00\u6837\u554a\uff1f<\/p>\n\n\n\n<p>\u76f4\u63a5\u63d0\u4ea4\u8bf7\u6c42\uff0cfailed\u3002\u55ef\u2026\u2026\u5199\u4e2a\u811a\u672c\u8bd5\u8bd5\u3002<\/p>\n\n\n\n<p>\u8bd5\u8bd5\u5c31\u901d\u4e16\uff0c\u5927\u69825\u6b21\u91cc\u9762\u67091\u6b21\u4f1afail\uff0c\u7136\u540echallenge\u7684checker\u662f\u8fde\u7eed\u8dd120\u6b21\u7684\u3002<\/p>\n\n\n\n<p>\u90a3\u6211\u8fd8\u4e0d\u76f4\u63a5\u6253\u7206\uff1f\u5f00\u53d1\u8005\u5de5\u5177\u6253\u5f00\uff0c\u4e00\u4e2a\u590d\u5236\uff0c\u4e00\u4e2a\u7c98\u8d34\uff0c\u4e00\u4e2awhile true do os.execute\u5c31\u6253\u4e0b\u53bb\u4e86\uff0c\u4e09\u79d2\u51faflag\u3002<\/p>\n\n\n\n<p>\u6628\u5929\u8fd8\u4e0d\u662f\u8fd9\u6837\u7684\u5462 \u2014\u2014 \u4e8b\u540e\u6e05\u534e\u7237\u544a\u8bc9\u6211\u4eec\uff0c\u670d\u52a1\u5668\u6628\u5929\u88ab\u6253\u5d29\u4e86\u624d\u53d8\u6210\u8fd9\u6837\u7684\u3002\u597d\u5bb6\u4f19\u3002<\/p>\n\n\n\n<p>Ver\u5927\u54e5\u665a\u4e0a\u8bf4\u8fd9\u9898\u76eeEOS\u7248\u672c\u6253\u4e94\u6298\uff0c\u4ee5\u540e\u62ff\u5230\u8fd9\u79cd\u4e1c\u897f\u8fd8\u662f\u8981\u5148\u68c0\u67e5\u4e00\u4e0b\u7248\u672c\u53f7\u554a\u3002\u4e0d\u8fc7\u4ed6\u4eec\u4e5f\u662f\u975e\u9884\u671f\u51fa\u7684\uff08\u8349\uff09<\/p>\n\n\n\n<p>\u5077\u5077\u4ea4\u4e86\u4e00\u4e2aFlag\u4e4b\u540e\uff0c\u961f\u91cc\u5145\u6ee1\u4e86\u5feb\u6d3b\u7684\u7a7a\u6c14\u3002\u5de5\u4f5c\u4eba\u5458\u8fc7\u6765\u786e\u8ba4\u4e86\u5b83\u662f\u4e2a\u975e\u9884\u671f\uff08ry<\/p>\n\n\n\n<p>\u4e0b\u5348\u5269\u4e0b\u6700\u540e\u51e0\u4e2a\u5c0f\u65f6\uff0c\u6211\u4eec\u51b3\u5b9a\u6240\u6709\u4eba\u4e00\u8d77\u641e\u4e00\u9898\u770b\u8d77\u6765\u548cHTTP2\u6709\u5173\u7684Pwn\u3002<\/p>\n\n\n\n<p>\u8c01\u77e5\u9053curl\u8fc7\u53bb\u4e4b\u540e\u53d1\u73b0\u5b83\u5176\u5b9e\u662f\u4e2aWeb\uff0c\u76f4\u63a5\u641c\u5230Timeless-Timing-Attack\uff0c\u5c31\u5e72\u4e86\u4e0a\u53bb\u3002<\/p>\n\n\n\n<p>Github\u4e0a\u7684\u811a\u672c\u6709\u70b9\u95ee\u9898\uff0c\u6211\u6539\u4e86\u534a\u4e2a\u591a\u5c0f\u65f6\u624d\u8ba9\u4ed6\u8dd1\u8d77\u6765\uff1b\u53d1\u73b0\u80fd\u591f\u9010\u5b57\u6bcd\u7206\u7834\u4e4b\u540e\u6211\u6ca1\u6709\u591a\u60f3\uff0c\u9a6c\u4e0a\u8fde\u5199\u4e09\u4e2a\u811a\u672c\u5206\u522b\u5904\u7406\u7206\u7834\u3001\u53d6\u4ea4\u96c6\u548c\u6700\u7ec8\u7684\u6821\u9a8c\u3002\u5982\u679c\u518d\u51b7\u9759\u4e00\u4e9b\u7684\u8bdd\u5c31\u80fd\u628a\u811a\u672c\u6539\u6210\u5355\u673a30\u5206\u949f\u5185\u80fd\u8dd1\u5b8c\u7684\u7248\u672c\uff0c\u4e0d\u8fc7\u5269\u4e0b2\u5c0f\u65f6\u7684\u65f6\u5019\u975e\u5e38\u6fc0\u52a8\uff0c\u6839\u672c\u6ca1\u6709\u591a\u60f3\uff0c\u9a6c\u4e0a\u5c31\u4e94\u4e2a\u4eba\u591a\u7ebf\u7a0b\u8dd1\u8d77\u6765\u4e86\u3002<\/p>\n\n\n\n<p>\u5012\u657030\u5206\u949f\u7684\u65f6\u5019\uff0c\u6211\u4eec\u7206\u7834\u51fa\u4e86\u6574\u4e2aflag \u2014\u2014 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class=\"wp-block-heading\">Day 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