{"id":3950,"date":"2020-04-29T23:28:03","date_gmt":"2020-04-29T14:43:03","guid":{"rendered":"https:\/\/www.inforsec.org\/wp\/?p=3950"},"modified":"2020-04-29T23:28:03","modified_gmt":"2020-04-29T14:43:03","slug":"%e3%80%90inforsec%e9%80%9a%e8%ae%af%e3%80%91mopt%ef%bc%9a%e6%a8%a1%e7%b3%8a%e6%b5%8b%e8%af%95%e5%b7%a5%e5%85%b7%e7%9a%84%e4%bc%98%e5%8c%96%e7%aa%81%e5%8f%98%e8%b0%83%e5%ba%a6%e7%ad%96%e7%95%a5-useni","status":"publish","type":"post","link":"http:\/\/202.112.238.40\/wp\/?p=3950","title":{"rendered":"\u3010InForSec\u901a\u8baf\u3011MOPT\uff1a\u6a21\u7cca\u6d4b\u8bd5\u5de5\u5177\u7684\u4f18\u5316\u7a81\u53d8\u8c03\u5ea6\u7b56\u7565 | Usenix Security2019"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>\u8bba\u6587\u9898\u76ee<\/strong>\uff1aMOPT\uff1aOptimized Mutation Scheduling for Fuzzers\uff08\u672c\u6587\u9009\u81eaUSENIX Security 2019\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8bba\u6587\u4f5c\u8005<\/strong>\uff1aChenyang Lyu\uff0cShouling Ji\uff0cChao Zhang\uff0cYuwei Li\uff0cWei-Han Lee\uff0c Yu Song\uff0c Raheem Beyah<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4f5c\u8005\u5355\u4f4d<\/strong>\uff1aZhejiang University\uff0c Alibaba-Zhejiang University Joint Research Institute of Frontier Technologies\uff0c BNRist &amp; INSC\uff0c Tsinghua University\uff0c IBM Research\uff0c Georgia Institute of Technology<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8bba\u6587\u5730\u5740<\/strong>\uff1a<a href=\"https:\/\/www.usenix.org\/system\/files\/sec19-lyu.pdf\">https:\/\/www.usenix.org\/system\/files\/sec19-lyu.pdf<\/a><br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8bba\u6587\u4ee3\u7801<\/strong>\uff1a<a href=\"https:\/\/github.com\/puppet-meteor\/MOpt-AFL\">https:\/\/github.com\/puppet-meteor\/MOpt-AFL<\/a><br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1.\u80cc\u666f\u4ecb\u7ecd<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6a21\u7cca\u6d4b\u8bd5\u662f\u6700\u9ad8\u6548\u7684\u6f0f\u6d1e\u6316\u6398\u6280\u672f\u4e4b\u4e00\uff0c\u5927\u4f53\u5de5\u4f5c\u6d41\u7a0b\u5982\u4e0b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6a21\u7cca\u6d4b\u8bd5\u5de5\u5177\u4f1a\u7ef4\u62a4\u4e00\u4e2aseed pool\uff0c\u6bcf\u6b21\u5de5\u5177\u4eceseed pool\u4e2d\u9009\u51fa\u4e00\u4e2a\u79cd\u5b50\u6587\u4ef6\uff0c\u5bf9\u5b83\u8fdb\u884cRt\u6b21\u53d8\u5f02\u8fc7\u7a0b\u3002\u5728\u6bcf\u6b21\u53d8\u5f02\u8fc7\u7a0b\u4e2d\uff0c\u5de5\u5177\u9009\u7528Ro\u4e2a\u53d8\u5f02\u64cd\u4f5c\u5bf9\u79cd\u5b50\u6587\u4ef6\u8fdb\u884c\u4fee\u6539\uff0c\u6700\u7ec8\u5f97\u5230Rt\u4e2a\u6d4b\u8bd5\u7528\u4f8b\u3002\u7136\u540e\u5de5\u5177\u4f7f\u7528Rt\u4e2a\u6d4b\u8bd5\u7528\u4f8b\u53bb\u6d4b\u8bd5\u76ee\u6807\u7a0b\u5e8f\uff0c\u5982\u679c\u7528\u4f8b\u89e6\u53d1\u4e86\u7a0b\u5e8f\u7684\u5f02\u5e38\u884c\u4e3a\uff0c\u5c31\u8ba4\u4e3a\u8be5\u7528\u4f8b\u4e3ainteresting test case\uff0c\u5e76\u5c06\u8be5\u7528\u4f8b\u4fdd\u5b58\u5230seed pool\u4e2d\uff0c\u4f5c\u4e3a\u540e\u7eed\u53d8\u5f02\u7684\u79cd\u5b50\u6587\u4ef6\u3002\u5982\u679c\u7528\u4f8b\u89e6\u53d1\u4e86\u65b0\u7684\u6267\u884c\u8def\u5f84\uff0c\u8bb8\u591a\u5de5\u5177\u4e5f\u4f1a\u8ba4\u4e3a\u8fd9\u4e00\u7528\u4f8b\u662finteresting test case\u5e76\u4fdd\u5b58\u5230\u672c\u5730seed pool\u4e2d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bb8\u591a\u6587\u7ae0\u81f4\u529b\u4e8e\u5f00\u53d1\u66f4\u9ad8\u6548\u7684\u6a21\u7cca\u6d4b\u8bd5\u5de5\u5177\uff0c\u5982CCS 2016\u7684AFL-Fast\u548cNDSS 2017\u7684VUzzer\u7740\u529b\u4e8e\u63d0\u9ad8\u6a21\u7cca\u6d4b\u8bd5\u7684\u6267\u884c\u8def\u5f84\u8986\u76d6\u7387\u5e76\u63a2\u7d22\u8f83\u5c11\u53d7\u5230\u6d4b\u8bd5\u7684\u4f4e\u9891\u6267\u884c\u8def\u5f84\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u73b0\u5b58\u7684\u5de5\u5177\u5927\u591a\u4f7f\u7528\u5747\u4e00\u5206\u5e03\u4f5c\u4e3a\u53d8\u5f02\u64cd\u4f5c\u7684\u8c03\u5ea6\u7b56\u7565\uff0c\u7531\u4e8e\u5de5\u5177\u901a\u8fc7\u9009\u62e9\u53d8\u5f02\u64cd\u4f5c\u6765\u751f\u6210\u89e6\u53d1\u5f02\u5e38\u884c\u4e3a\u7684\u6d4b\u8bd5\u7528\u4f8b\uff0c\u90a3\u4e48\uff0c\u4f7f\u7528\u5747\u4e00\u5206\u5e03\u6765\u9009\u62e9\u53d8\u5f02\u64cd\u4f5c\u662f\u5426\u4e3a\u5408\u7406\u7684\u8c03\u5ea6\u7b56\u7565\u5462\uff1f<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"664\" height=\"189\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2020\/04\/15881710331-1.png\" alt=\"\" class=\"wp-image-3952\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881710331-1.png 664w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881710331-1-300x85.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881710331-1-150x43.png 150w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881710331-1-250x71.png 250w\" sizes=\"auto, (max-width: 664px) 100vw, 664px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u6a21\u7cca\u6d4b\u8bd5\u5de5\u5177AFL\u4e3a\u4f8b\uff0c\u5b83\u5b9e\u73b0\u4e8611\u7c7b\u4e0d\u540c\u7684\u53d8\u5f02\u64cd\u4f5c\uff0c\u5176\u4e2d16\u4e2a\u64cd\u4f5c\u4f7f\u7528\u9891\u7387\u6700\u9ad8\u3002\u5982\u56fe\u662fAFL\u7684\u53d8\u5f02\u8c03\u5ea6\u8fc7\u7a0b\uff0c\u7b2c\u4e00\u6b21\u8fdb\u884c\u53d8\u5f02\u7684\u79cd\u5b50\u6587\u4ef6\u9996\u5148\u8981\u8fdb\u5165deterministic stage\uff0c\u5728\u8fd9\u4e00\u9636\u6bb5\u6bcf\u4e2a\u53d8\u5f02\u64cd\u4f5c\u4f1a\u5bf9\u79cd\u5b50\u6587\u4ef6\u7684\u6bcf\u4e2abyte\u6216\u8005bit\u8fdb\u884c\u53d8\u5f02\uff0c\u4ee5\u6b64\u751f\u6210\u5e9e\u5927\u6570\u91cf\u7684\u6d4b\u8bd5\u7528\u4f8b\u6765\u6d4b\u8bd5\u76ee\u6807\u7a0b\u5e8f\u3002\u5728\u7ed3\u675f\u4e86deterministic stage\u540e\uff0c\u8fdb\u5165havoc stage\uff0cAFL\u4ece\u53d8\u5f02\u64cd\u4f5c\u4e2d\u968f\u673a\u9009Ro\u4e2a\u5bf9\u79cd\u5b50\u6587\u4ef6\u8fdb\u884c\u53d8\u5f02\uff0c\u5e76\u4f7f\u7528\u53d8\u5f02\u540e\u7684\u6d4b\u8bd5\u7528\u4f8b\u6765\u6d4b\u8bd5\u7a0b\u5e8f\u3002\u7b2c\u4e09\u4e2a\u9636\u6bb5\u662fsplicing stage\uff0c\u8fdb\u5165\u8fd9\u4e00\u9636\u6bb5\u7684\u5224\u65ad\u6761\u4ef6\u5f88\u82db\u523b\uff0c\u5982\u679cAFL\u53d8\u5f02\u4e86seed pool\u4e2d\u7684\u6240\u6709\u79cd\u5b50\u6587\u4ef6\uff0c\u5f97\u5230\u7684\u6d4b\u8bd5\u7528\u4f8b\u4ecd\u7136\u6ca1\u6709\u53d1\u73b0\u65b0\u7684interesting test cases\uff0cAFL\u624d\u4f1a\u6267\u884c\u8fd9\u4e00\u9636\u6bb5\uff0csplicing stage\u53ea\u6267\u884c\u4e00\u4e2a\u53d8\u5f02\u64cd\u4f5c\uff1a\u968f\u673a\u9009\u53d6\u53e6\u4e00\u4e2a\u79cd\u5b50\u6587\u4ef6\uff0c\u5c06\u5b83\u548c\u5f53\u524d\u6587\u4ef6\u7684\u90e8\u5206\u5185\u5bb9\u62fc\u63a5\u5728\u4e00\u8d77\uff0c\u7136\u540e\u91cd\u65b0\u8fdb\u5165havoc stage\u8fdb\u884c\u53d8\u5f02\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u6790\u5f97\u51fadeterministic stage\u548chavoc stage\u4f7f\u7528\u7684\u6700\u591a\uff0csplicing stage\u7531\u4e8e\u5224\u65ad\u6761\u4ef6\u5f88\u5c11\u7528\u5230\u3002\u800c\u4e14\uff0cAFL\u5728havoc stage\u4e2d\u4f7f\u7528\u5747\u4e00\u5206\u5e03\u9009\u62e9\u53d8\u5f02\u64cd\u4f5c\u3002\u4f46\u4e0d\u540c\u53d8\u5f02\u64cd\u4f5c\u53d1\u73b0interesting test cases\u7684\u6548\u7387\u662f\u4e00\u6837\u7684\u5417\uff1f<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"607\" height=\"202\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2020\/04\/15881710671.png\" alt=\"\" class=\"wp-image-3953\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881710671.png 607w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881710671-300x100.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881710671-150x50.png 150w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881710671-250x83.png 250w\" sizes=\"auto, (max-width: 607px) 100vw, 607px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u8fdb\u884c\u5b9e\u9a8c\u6765\u6c42\u8bc1\u8fd9\u4e00\u95ee\u9898\u3002\u5de6\u56fe\u4e3a12\u4e2a\u53d8\u5f02\u64cd\u4f5c\u53d1\u73b0interesting test cases\u7684\u6bd4\u4f8b\uff0c\u5728\u540c\u4e00\u76ee\u6807\u7a0b\u5e8f\u4e0a\uff0c\u4e0d\u540c\u7684\u53d8\u5f02\u64cd\u4f5c\u53d1\u73b0interesting test cases\u7684\u5360\u6bd4\u4e0d\u540c\u3002\u800c\u4e14\uff0c\u540c\u4e00\u4e2a\u53d8\u5f02\u64cd\u4f5c\u5728\u4e0d\u540c\u76ee\u6807\u7a0b\u5e8f\u4e0a\u7684\u5360\u6bd4\u4e5f\u4e0d\u540c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53f3\u56fe\u4e3aAFL\u5728\u6d4b\u8bd5avconv\u65f6\u6bcf\u4e2a\u53d8\u5f02\u64cd\u4f5c\u7684\u6267\u884c\u6b21\u6570\u3002\u53ef\u77e5\uff0c\u4ea7\u751f\u4e86\u8bb8\u591ainteresting test cases\u7684bitflip\u6267\u884c\u6b21\u6570\u8f83\u5c11\uff0c\u540e\u9762\u8f83\u4e3a\u4f4e\u6548\u7684\u64cd\u4f5c\u6267\u884c\u6b21\u6570\u5374\u8f83\u591a\u3002\u6545AFL\u82b1\u8d39\u4e86\u5927\u91cf\u65f6\u95f4\u6765\u6267\u884c\u4f4e\u6548\u7684\u53d8\u5f02\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u6b21\uff0c\u6211\u4eec\u63a2\u7a76AFL\u5728\u4e09\u4e2a\u9636\u6bb5\u82b1\u8d39\u7684\u65f6\u95f4\u4ee5\u53ca\u53d1\u73b0\u7684interesting test cases\u5360\u6bd4\u3002\u53ef\u4ee5\u89c2\u5bdf\u5230\uff0csplicing stage\u51e0\u4e4e\u6ca1\u6709\u5360\u7528\u65f6\u95f4\uff0c\u591a\u6570\u60c5\u51b5\u4e0b\uff0cdeterministic stage\u5360\u7528\u4e86\u5927\u91cf\u65f6\u95f4\uff0c\u53d1\u73b0\u7684\u5374\u6ca1\u6709\u5360\u5230\u76f8\u5e94\u7684\u6bd4\u4f8b\u3002\u6240\u4ee5\uff0cAFL\u6295\u5165\u4e86\u5927\u91cf\u7684\u65f6\u95f4\u5728deterministic stage\uff0c\u4f46\u56de\u62a5\u4e0d\u503c\u5f97\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7efc\u4e0a\uff0c\u4e0d\u540c\u53d8\u5f02\u64cd\u4f5c\u5728\u540c\u4e00\u6d4b\u8bd5\u7a0b\u5e8f\u4e0a\u6316\u6398interesting test cases\u7684\u6548\u679c\u4e0d\u540c\uff0c\u540c\u4e00\u64cd\u4f5c\u5728\u4e0d\u540c\u7a0b\u5e8f\u4e0a\u7684\u6548\u679c\u4e0d\u540c\u3002AFL\u82b1\u8d39\u4e86\u8bb8\u591a\u65f6\u95f4\u5728\u4f4e\u6548\u7684\u53d8\u5f02\u64cd\u4f5c\uff0c\u4e14\u82b1\u8d39\u5927\u91cf\u65f6\u95f4\u5728deterministic stage\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u663e\u7136\uff0c\u5de5\u5177\u5e94\u8be5\u82b1\u8d39\u66f4\u591a\u7684\u65f6\u95f4\u6765\u6267\u884c\u9ad8\u6548\u7684\u53d8\u5f02\u64cd\u4f5c\uff0c\u9700\u8981\u4e00\u4e2a\u66f4\u597d\u7684\u8c03\u5ea6\u7b56\u7565\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2.\u8c03\u5ea6\u7b56\u7565MOPT<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9996\u5148\u786e\u8ba4\u5b9e\u73b0MOPT\u7684stage\u9636\u6bb5\u3002\u7531\u4e8edeterministic stage\u7684\u53d8\u5f02\u662f\u56fa\u5b9a\u7684\uff0c\u800csplicing stage\u53ea\u6709\u4e00\u4e2a\u53d8\u5f02\u64cd\u4f5c\uff0c\u5360\u65f6\u6781\u77ed\uff0c\u6545\u6211\u4eec\u5b9e\u73b0MOPT\u7684\u9636\u6bb5\u662fhavoc stage\u3002\u57fa\u4e8e\u7c92\u5b50\u7fa4\u7b97\u6cd5\uff0c\u8bbe\u8ba1\u4e86\u5982\u4e0b\u8c03\u5ea6\u7b56\u7565\u3002MOPT\u6709\u590d\u6570\u4e2a\u7c92\u5b50\u7fa4\uff0c\u6bcf\u4e2a\u7c92\u5b50\u7fa4\u4e2d\u6709\u7740\u8ddf\u53d8\u5f02\u64cd\u4f5c\u76f8\u540c\u4e2a\u6570\u7684\u7c92\u5b50\uff0c\u6bcf\u4e2a\u7c92\u5b50\u6240\u5728\u4f4d\u7f6eXnow\u4e3a\u5bf9\u5e94\u53d8\u5f02\u64cd\u4f5c\u7684\u9009\u62e9\u6982\u7387\u3002\u7c92\u5b50\u6839\u636e\u7c92\u5b50\u7fa4\u7b97\u6cd5\u5728\u6982\u7387\u7a7a\u95f4\u4e2d\u6e38\u8d70\uff0c\u5e76\u6574\u5408\u6210\u6240\u6709\u53d8\u5f02\u64cd\u4f5c\u7684\u9009\u62e9\u6982\u7387\u5206\u5e03\u3002\u6240\u4ee5\u6bcf\u4e2a\u7c92\u5b50\u7fa4\u662f\u4e00\u4e2a\u9009\u62e9\u6982\u7387\u5206\u5e03\uff0c\u6545MOPT\u6709\u590d\u6570\u4e2a\u6982\u7387\u5206\u5e03\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">MOPT\u7684\u5177\u4f53\u6846\u67b6\u5982\u56fe\uff0c\u5927\u4f53\u5206\u4e3a\u56db\u4e2a\u6a21\u5757\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"566\" height=\"365\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2020\/04\/15881710851.png\" alt=\"\" class=\"wp-image-3954\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881710851.png 566w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881710851-300x193.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881710851-150x97.png 150w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881710851-233x150.png 233w\" sizes=\"auto, (max-width: 566px) 100vw, 566px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u9996\u5148\u662fPSO initialization module\uff0c\u4e3a\u6240\u6709\u7c92\u5b50\u7fa4\u8d4b\u4e88\u521d\u503c\uff0c\u53ea\u5728\u6a21\u7cca\u6d4b\u8bd5\u8fc7\u7a0b\u5f00\u59cb\u7684\u65f6\u5019\u6267\u884c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u968f\u540e\u662fpilot fuzzing module\uff0c\u5728\u8fd9\u4e00\u6a21\u5757\u4e2d\uff0cMOPT\u5c06\u6d4b\u8bd5\u6bcf\u4e00\u4e2a\u7c92\u5b50\u7fa4\u7684\u6982\u7387\u5206\u5e03\u3002MOPT\u5c06\u4f7f\u7528\u4e00\u4e2a\u6982\u7387\u5206\u5e03\u751f\u6210\u56fa\u5b9a\u4e2a\u6570\u7684\u6d4b\u8bd5\u7528\u4f8b\u6765\u6d4b\u8bd5\u7a0b\u5e8f\uff0c\u63a2\u7a76\u8fd9\u4e9b\u6982\u7387\u5206\u5e03\u7684\u6548\u7387\u3002\u5728\u6bcf\u4e00\u6982\u7387\u5206\u5e03\u7684\u4f5c\u7528\u4e0b\uff0cMOPT\u4f1a\u8bb0\u5f55\u6bcf\u4e2a\u7c92\u5b50\u5bf9\u5e94\u7684\u53d8\u5f02\u64cd\u4f5c\u53d1\u73b0interesting test cases\u7684\u6b21\u6570\u548c\u6267\u884c\u7684\u6b21\u6570\uff0c\u8fd9\u4e24\u4e2a\u6570\u503c\u7528\u4ee5\u6c42\u89e3\u8be5\u7c92\u5b50\u7684local best\u3002\u5e76\u4e14\u8bb0\u5f55\u8be5\u7c92\u5b50\u7fa4\u672c\u6b21\u8fed\u4ee3\u8fc7\u7a0b\u4e2d\u53d1\u73b0\u7684interesting test cases\u7684\u6570\u91cf\uff0c\u7528\u4ee5\u6c42\u89e3\u672c\u6b21\u8fed\u4ee3\u4e2d\u8be5\u7c92\u5b50\u7fa4\u7684\u6548\u7387\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u6bcf\u4e2a\u7c92\u5b50\u7fa4\u90fd\u5b8c\u6210\u4e0a\u8ff0\u64cd\u4f5c\u4e4b\u540e\uff0cpilot fuzzing module\u7ed3\u675f\uff0cMOPT\u8fdb\u5165core fuzzing module\u3002MOPT\u6839\u636e\u672c\u6b21\u8fed\u4ee3\u4e2d\u6bcf\u4e2a\u7c92\u5b50\u7fa4\u7684interesting test cases\u6316\u6398\u6548\u7387\uff0c\u9009\u7528\u6548\u7387\u6700\u9ad8\u7684\u7c92\u5b50\u7fa4\u7684\u6982\u7387\u5206\u5e03\u8fdb\u884c\u6f0f\u6d1e\u6316\u6398\uff0c\u5e76\u6267\u884c\u56fa\u5b9a\u6b21\u6570\u540e\u7ed3\u675f\u3002\u6b64\u65f6MOPT\u7edf\u8ba1\u6bcf\u4e2a\u53d8\u5f02\u64cd\u4f5c\u7684\u6267\u884c\u603b\u6b21\u6570\u4e0e\u53d1\u73b0\u7684interesting test cases\u7684\u603b\u4e2a\u6570\uff0c\u7528\u4ee5\u6c42\u5f97global best\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u7ed3\u675fcore fuzzing module\u540e\uff0cMOPT\u8fdb\u5165PSO updating module\uff0c\u5e76\u6839\u636eglobal best\u548c\u6bcf\u4e2a\u7c92\u5b50\u7684local best\u503c\uff0c\u5bf9\u6bcf\u4e2a\u7c92\u5b50\u7684\u4f4d\u7f6e\uff08\u5373\u5bf9\u5e94\u53d8\u5f02\u64cd\u4f5c\u7684\u9009\u62e9\u6982\u7387\uff09Xnow\u8fdb\u884c\u66f4\u65b0\uff0c\u968f\u540e\u5bf9\u6bcf\u4e2a\u7c92\u5b50\u7fa4\u7684\u7c92\u5b50\u4f4d\u7f6e\u5f52\u4e00\u5316\uff0c\u5f97\u5230\u603b\u548c\u4e3a1.0\u7684\u6982\u7387\u5206\u5e03\u3002\u6700\u540e\u8fdb\u5165pilot fuzzing module\u6267\u884c\u4e0b\u4e00\u8f6e\u8fed\u4ee3\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7531\u4e8eAFL\u5728deterministic stage\u82b1\u8d39\u7684\u65f6\u95f4\u6781\u591a\uff0c\u4f46\u5b9e\u73b0\u7684MOPT\u4f4d\u4e8ehavoc stage\uff0c\u663e\u7136deterministic stage\u4f1a\u5f71\u54cdMOPT\u7684\u8fed\u4ee3\u901f\u7387\uff0c\u8fdb\u800c\u5f71\u54cdMOPT\u7684\u6548\u679c\u3002\u4e8e\u662f\u6211\u4eec\u8bbe\u8ba1\u4e86pacemaker fuzzing mode\uff1a\u5982\u679cAFL\u5728\u957f\u65f6\u95f4To\u4e2d\u6ca1\u6709\u53d1\u73b0\u65b0\u7684interesting test cases\uff0cMOPT\u5c31\u4f1a\u5728\u540e\u7eed\u53d8\u5f02\u4e2d\u8df3\u8fc7deterministic stage\uff0c\u53ea\u6267\u884chavoc\u548csplicing stage\u3002\u6211\u4eec\u8bbe\u8ba1\u4e86\u4e24\u79cd\uff0c\u4e00\u79cd\u662f\u7981\u6b62deterministic stage\u540e\u4e0d\u518d\u542f\u7528\u7684-ever\u7248\u672c\uff0c\u4e00\u79cd\u662f\u53d1\u73b0\u4e86\u8db3\u591f\u6570\u91cf\u7684interesting test cases\u65f6\uff0c\u4f1a\u91cd\u65b0\u542f\u7528deterministic stage\u7684-tmp\u7248\u672c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3.\u5b9e\u9a8c\u4e0e\u5206\u6790<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fdb\u5165evaluation\u90e8\u5206\uff0c\u9996\u5148\u4ecb\u7ecd\u7684\u662f\u6d4b\u8bd5\u5bf9\u8c61\uff0c\u6211\u4eec\u4ece\u4ee5\u5f80\u8bba\u6587\u4e2d\u9009\u53d6\u4e86\u901a\u5e38\u4f7f\u7528\u7684\u4e00\u4e9b\u76ee\u6807\u7a0b\u5e8f\u4f5c\u4e3a\u6d4b\u8bd5\u5bf9\u8c61\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9e\u9a8c\u7ed3\u679c\u5982\u56fe\u6240\u793a\uff0cMOPT-AFL-tmp\u548c-ever\u53d1\u73b0\u7684crash\u6570\u91cf\u4e3aAFL\u7684\u56db\u500d\uff0c\u4e24\u8005\u4e5f\u53d1\u73b0\u4e86\u6bd4AFL\u591a\u4e00\u500d\u7684\u7a0b\u5e8f\u8def\u5f84\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"666\" height=\"479\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2020\/04\/15881711041.png\" alt=\"\" class=\"wp-image-3955\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711041.png 666w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711041-300x216.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711041-150x108.png 150w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711041-209x150.png 209w\" sizes=\"auto, (max-width: 666px) 100vw, 666px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u968f\u540e\u6211\u4eec\u4f7f\u7528address sanitizer\u5bf9crash\u7b5b\u9009\uff0c\u5f97\u5230unique bugs\uff0c\u5bf9\u6bd4\u5df2\u516c\u5f00\u7684CVE\uff0c\u5c06\u672a\u53d1\u73b0\u7684bugs\u63d0\u4ea4\u7ed9\u5382\u5546\u5e76\u7533\u8bf7CVE\uff0c\u6700\u540e\u603b\u7ed3\u5f97\u5230\u4e0a\u8868\u5185\u5bb9\u3002\u5176\u4e2d\uff0cAFL\u53d1\u73b0\u4e8620\u4e2a\u65b0\u7684CVE\u548c7\u4e2a\u5df2\u516c\u5f00\u7684CVE\u3002\u800cMOPT-AFL-tmp\u53d1\u73b0\u4e8658\u4e2a\u65b0\u7684CVE\u548c14\u4e2a\u5df2\u516c\u5f00\u7684CVE\u3002MOPT-AFL-ever\u53d1\u73b0\u7684CVE\u603b\u6570\u4e5f\u8fbe\u5230\u4e86AFL\u7684\u4e24\u500d\u3002\u6240\u4ee5\uff0cMOPT-AFL\u7684\u6f0f\u6d1e\u6316\u6398\u6548\u7387\u5f88\u9ad8\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"564\" height=\"317\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2020\/04\/15881711231-1.png\" alt=\"\" class=\"wp-image-3957\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711231-1.png 564w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711231-1-300x169.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711231-1-150x84.png 150w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711231-1-250x141.png 250w\" sizes=\"auto, (max-width: 564px) 100vw, 564px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5b9e\u9a8c\u8fc7\u7a0b\u4e2d\u6211\u4eec\u8bb0\u5f55\u4e863\u4e2afuzzers\u7684crash\u4e2a\u6570\u4e0e\u65f6\u95f4\u7684\u5173\u7cfb\uff0c\u53ef\u4ee5\u770b\u5230MOPT-AFL\u53d1\u73b0crash\u7684\u901f\u7387\u663e\u8457\u5feb\u4e8eAFL\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"573\" height=\"242\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2020\/04\/15881711381.png\" alt=\"\" class=\"wp-image-3958\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711381.png 573w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711381-300x127.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711381-150x63.png 150w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711381-250x106.png 250w\" sizes=\"auto, (max-width: 573px) 100vw, 573px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u73b0\u5b58fuzzers\u4f7f\u7528\u5747\u4e00\u5206\u5e03\u6765\u9009\u62e9\u53d8\u5f02\u64cd\u4f5c\uff0c\u4e8e\u662f\u6211\u4eec\u5728AFL-Fast\u548cVUzzer\u4e0a\u5b9e\u73b0\u4e86MOPT\u8c03\u5ea6\u7b56\u7565\u6765\u6d4b\u8bd5\u517c\u5bb9\u6027\u3002\u7531\u5b9e\u9a8c\u7ed3\u679c\u53ef\u77e5\uff0cMOPT\u53ef\u4ee5\u63d0\u9ad8AFL-Fast\u548cVUzzer\u7684\u6f0f\u6d1e\u6316\u6398\u8868\u73b0\u3002<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u968f\u540e\u6211\u4eec\u5728LAVA-M\u6570\u636e\u96c6\u4e0a\u6d4b\u8bd5\u4e8610\u79cdfuzzers\u7ec4\u5408\uff0c\u5e76\u53d1\u73b0\u4e86\u4e00\u4e9b\u6709\u8da3\u7684\u7ed3\u679c\u3002\u9996\u5148MOPT\u53ef\u4ee5\u63d0\u9ad8fuzzers\u7684\u8868\u73b0\uff1b\u5176\u6b21\u5728\u4e0eAngora\u548cQSYM\u7684\u5b9e\u9a8c\u4e2d\uff0cMOPT\u663e\u8457\u63d0\u9ad8\u4e86\u6f0f\u6d1e\u4e2a\u6570\uff0c\u8bf4\u660eMOPT\u548c\u7b26\u53f7\u6267\u884c\u6280\u672f\uff08\u6216\u8fd1\u4f3c\u7684\u6280\u672f\uff09\u662f\u4e92\u8865\u7684\uff0c\u4e00\u540c\u4f7f\u7528\u53ef\u4ee5\u53d1\u73b0\u6700\u591a\u6570\u91cf\u7684\u6f0f\u6d1e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540e\u7eed\u8fdb\u884c\u7edf\u8ba1\u5b66\u6027\u8d28\u7684\u5b9e\u9a8c\u3002\u6211\u4eec\u9009\u53d6MOPT-AFL-ever\uff0cAFL\uff0cAnogra\u548cVUzzer\u5728\u4e94\u4e2a\u76ee\u6807\u7a0b\u5e8f\u4e0a\u8fdb\u884c\u6d4b\u8bd5\uff08\u5206\u522b\u4f7f\u7528\u4e09\u79cd\u4e0d\u540c\u7684\u521d\u59cb\u79cd\u5b50\u96c6\uff09\uff0c\u6bcf\u6b21\u6d4b\u8bd5\u6301\u7eed240\u5c0f\u65f6\uff0c\u91cd\u590d30\u6b21\uff0c\u8bc4\u4ef7\u6807\u51c6\u662f\u53d1\u73b0\u7684crash\u548cbug\u7684\u6570\u91cf\uff0c\u5e76\u4e14\u7528p value\u5206\u6790\u4e24\u4e2afuzzers\u7684\u8868\u73b0\u662f\u5426\u6709\u663e\u8457\u5dee\u522b\uff0cp\u503c\u5f88\u5c0f\u8bf4\u660e\u5b58\u5728\u663e\u8457\u5dee\u522b\uff0c\u53cd\u4e4b\u65e0\u663e\u8457\u5dee\u522b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9996\u5148\u662fcrash\u7684\u7edf\u8ba1\u5206\u6790\u7ed3\u679c\uff0c\u53ef\u4ee5\u770b\u5230\u5927\u90e8\u5206\u6d4b\u8bd5\u7528\u4f8b\u4e2d\uff0cMOPT-AFL-ever\u663e\u8457\u591a\u4e8e\u5176\u5b83fuzzers\u3002\u4ece\u7bb1\u578b\u56fe\u770b\u51fa\uff0c\u5f88\u591a\u5b9e\u9a8c\u4e2dMOPT-AFL-ever\u7684\u6700\u5c0f\u503c\u90fd\u5927\u4e8e\u5176\u5b83fuzzers\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u968f\u540e\u662fbug\u7684\u7edf\u8ba1\u5206\u6790\u7ed3\u679c\uff0c\u53ef\u4ee5\u770b\u51faMOPT-AFL-ever\u53d1\u73b0\u7684bug\u591a\u4e8e\u5176\u5b83fuzzers\uff0cp value\u4e5f\u8bc1\u5b9e\u4e24\u4e2a\u5206\u5e03\u662f\u5dee\u8ddd\u663e\u8457\u7684\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"652\" height=\"267\" src=\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2020\/04\/15881711561.png\" alt=\"\" class=\"wp-image-3959\" srcset=\"http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711561.png 652w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711561-300x123.png 300w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711561-150x61.png 150w, http:\/\/202.112.238.40\/wp\/wp-content\/uploads\/2020\/04\/15881711561-250x102.png 250w\" sizes=\"auto, (max-width: 652px) 100vw, 652px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u6790MOPT\u4e3b\u8981\u6846\u67b6\u548cpacemaker fuzzing mode\u5bf9\u6f0f\u6d1e\u6316\u6398\u7684\u5f71\u54cd\uff0c\u5b9e\u73b0\u4e86\u4e0d\u4f7f\u7528pacemaker fuzzing mode\u7684MOPT-AFL-off\uff0c\u548c\u53ea\u5b9e\u73b0pacemaker fuzzing mode\u7684AFL-ever\u8fdb\u884c\u6d4b\u8bd5\u3002\u4ece\u5b9e\u9a8c\u7ed3\u679c\u53ef\u4ee5\u5f97\u51fa\uff0c\u4e24\u4e2a\u90e8\u5206\u90fd\u80fd\u63d0\u9ad8AFL\u6548\u7387\uff0c\u7ed3\u5408\u5728\u4e00\u8d77\u63d0\u9ad8\u7684\u6700\u591a\u3002<\/p>\n\n\n\n<p 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class=\"wp-block-paragraph\">\u5bf9MOPT\u5f15\u5165\u7684\u8ba1\u7b97\u6d88\u8017\u8fdb\u884c\u5206\u6790\uff0c\u6211\u4eec\u4f7f\u7528fuzzer\u7684\u6267\u884c\u901f\u7387\u6765\u5206\u6790MOPT\u662f\u5426\u5bf9fuzzing\u8fc7\u7a0b\u9020\u6210\u8ba1\u7b97\u8d1f\u62c5\u3002\u7ed3\u679c\u8bc1\u5b9e\uff0c\u5927\u90e8\u5206\u6848\u4f8b\u4e2d\uff0cMOPT\u51e0\u4e4e\u6ca1\u6709\u5f71\u54cd\u6267\u884c\u6548\u7387\uff0c\u90e8\u5206\u60c5\u51b5\u4e0b\u6267\u884c\u901f\u7387\u5feb\u4e8eAFL\u3002\u5728mp3gain\u5b9e\u9a8c\u4e2d\uff0c\u867d\u7136MOPT-AFL\u6bd4AFL\u7684\u6267\u884c\u901f\u7387\u6162\uff0c\u4f46\u662f\u4ecd\u53d1\u73b0\u4e86\u66f4\u591a\u7684crash\u548cbug\u3002<\/p>\n\n\n\n<p 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class=\"wp-block-paragraph\">\u5415\u6668\u9633\uff0c\u6d59\u6c5f\u5927\u5b66\u76f4\u535a\u4e09\u5e74\u7ea7\u751f\uff0c\u7814\u7a76\u65b9\u5411\uff1a\u6f0f\u6d1e\u6316\u6398\uff0c\u6a21\u7cca\u6d4b\u8bd5\uff0c\u795e\u7ecf\u7f51\u7edc\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6a21\u7cca\u6d4b\u8bd5\u5de5\u5177\u4f1a\u7ef4\u62a4\u4e00\u4e2aseed pool\uff0c\u6bcf\u6b21\u5de5\u5177\u4eceseed 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pool\u4e2d\u3002 <a class=\"continue-reading-link\" href=\"http:\/\/202.112.238.40\/wp\/?p=3950\"> Continue reading <span class=\"meta-nav\">&rarr; <\/span><\/a><\/p>\n","protected":false},"author":7,"featured_media":3954,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-3950","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research"],"_links":{"self":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/3950","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3950"}],"version-history":[{"count":1,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/3950\/revisions"}],"predecessor-version":[{"id":3960,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/3950\/revisions\/3960"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/media\/3954"}],"wp:attachment":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3950"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3950"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3950"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}