{"id":796,"date":"2016-05-11T02:29:41","date_gmt":"2016-05-11T02:29:41","guid":{"rendered":"http:\/\/www.inforsec.org\/wp\/?p=796"},"modified":"2016-05-11T02:29:41","modified_gmt":"2016-05-11T02:29:41","slug":"skee-%e9%92%88%e5%af%b9arm%e6%9e%b6%e6%9e%84%e7%9a%84%e8%bd%bb%e9%87%8f%e7%ba%a7linux%e5%86%85%e6%a0%b8%e5%ae%89%e5%85%a8%e6%89%a7%e8%a1%8c%e7%8e%af%e5%a2%83","status":"publish","type":"post","link":"http:\/\/202.112.238.40\/wp\/?p=796","title":{"rendered":"SKEE – \u9488\u5bf9ARM\u67b6\u6784\u7684\u8f7b\u91cf\u7ea7Linux\u5185\u6838\u5b89\u5168\u6267\u884c\u73af\u5883"},"content":{"rendered":"

\u4f5c\u8005\uff1a\u7533\u6587\u535a(\u7f8e\u56fd\u5317\u5361\u5dde\u7acb\u5927\u5b66\u8ba1\u7b97\u673a\u535a\u58eb\uff0c\u73b0\u4e3aSamsung Research America,Samsung Knox Linux\u5185\u6838\u7ec4\u6210\u5458)<\/p>\n

\u8fd1\u5e74\u6765\uff0c\u968f\u7740\u5b89\u5353\u8bbe\u5907\u7684\u666e\u53ca\uff0c\u9488\u5bf9\u5176\u7cfb\u7edf\u7684\u653b\u51fb\u4e5f\u6108\u53d1\u9891\u7e41\u3002\u4f5c\u4e3a\u652f\u6301\u5b89\u5353\u7cfb\u7edf\u7684\u5e95\u5c42\u7cfb\u7edf\uff0cLinux\u5185\u6838\u5907\u53d7\u9ed1\u5ba2\u5173\u6ce8\uff0c\u5982\u4f55\u653b\u7834\u5185\u6838\u83b7\u53d6\u5176root\u6743\u9650\u4e5f\u6210\u4e3a\u9ed1\u5ba2\u4eec\u4e89\u76f8\u5c1d\u8bd5\u7684\u76ee\u6807\u3002\u800c\u4e14Linux\u5185\u6838\u7531\u4e8e\u5176\u4ee3\u7801\u91cf\u5de8\u5927\uff0c\u8f6f\u4ef6\u6f0f\u6d1e\u5728\u6240\u96be\u514d[1]\u3002\u8fd9\u4e9b\u6f0f\u6d1e\u5f80\u5f80\u4f1a\u88ab\u9ed1\u5ba2\u5229\u7528\uff0c\u5f00\u53d1\u6076\u610f\u8f6f\u4ef6\uff0c\u76d7\u53d6\u7528\u6237\u4fe1\u606f[2]\u3002<\/p>\n

<\/p>\n

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\u5728\u4ee5\u524d\u7684\u7814\u7a76\u4e2d\uff0c\u5185\u6838\u5b89\u5168\u5de5\u5177\u901a\u5e38\u88ab\u653e\u7f6e\u5230\u62e5\u6709\u6bd4\u5185\u6838\u66f4\u9ad8\u6743\u9650\u7684\u7cfb\u7edf\u6784\u4ef6\u4e2d\uff0c\u4f8b\u5982Hypervisor,\u6216\u8005\u786c\u4ef6\u5b89\u5168\u7ec4\u4ef6\u4e2d\uff0c\u4f8b\u5982ARM TrustZone\uff0c\u4ece\u800c\u5c06\u5b89\u5168\u5de5\u5177\u548c\u5185\u6838\u4e2d\u6f5c\u5728\u7684\u53ef\u653b\u51fb\u7684\u6f0f\u6d1e\u9694\u79bb\u5f00\u6765\u3002\u4f46\u662f\u7531\u4e8e\u5b89\u5168\u5de5\u5177\u672c\u8eab\u7684\u4ee3\u7801\u91cf\u4ee5\u53ca\u6f5c\u5728\u7684\u8f6f\u4ef6\u6f0f\u6d1e\uff0c\u5c06\u5b89\u5168\u5de5\u5177\u653e\u7f6e\u5230\u66f4\u9ad8\u6743\u9650\u7684\u7cfb\u7edf\u6784\u4ef6\u4e0d\u4f46\u589e\u52a0\u4e86\u8fd0\u884c\u7ef4\u62a4\u7684\u6210\u672c\uff0c\u800c\u4e14\u4f1a\u589e\u52a0\u6240\u5728\u9ad8\u6743\u9650\u7684\u7cfb\u7edf\u6784\u4ef6\u7684\u4ee3\u7801\u91cf\u548c\u53ef\u653b\u51fb\u70b9\uff0c\u53cd\u800c\u4f7f\u7cfb\u7edf\u66f4\u6613\u53d7\u5230\u653b\u51fb\u3002<\/p>\n

NDSS2016\u7684\u4e00\u7bc7\u8bba\u6587:SKEE-\u9488\u5bf9ARM\u67b6\u6784\u7684\u8f7b\u91cf\u7ea7Linux\u5185\u6838\u5b89\u5168\u6267\u884c\u73af\u5883[4]\uff0c\u81f4\u529b\u4e8e\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\u3002\u8be5\u8bba\u6587\u521b\u65b0\u6027\u7684\u63d0\u51fa\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684\u5185\u6838\u5b89\u5168\u6267\u884c\u73af\u5883SKEE\uff08Secure Kernellevel Execution Environment\uff09\u3002\u8fd9\u4e2a\u5b89\u5168\u6267\u884c\u73af\u5883\u62e5\u6709\u548c\u5185\u6838\u540c\u7b49\u7684\u6743\u9650\u7ea7\u522b\uff0c\u4f46\u5374\u53ef\u4ee5\u4fdd\u8bc1\u5373\u4f7f\u5185\u6838\u88ab\u653b\u7834\uff0c\u653b\u51fb\u8005\u4f9d\u7136\u4e0d\u80fd\u7a81\u7834SKEE\u548c\u5185\u6838\u4e4b\u95f4\u7684\u9694\u79bb\uff0c\u4ece\u800c\u4fdd\u8bc1\u5176\u5185\u90e8\u6240\u653e\u7f6e\u7684\u5b89\u5168\u5de5\u5177\u7684\u5b89\u5168\u3002<\/p>\n

SKEE\u7684\u5b9e\u73b0\u57fa\u4e8e\u4e24\u5957\u5185\u5b58\u9875\u8868\uff08kernel page table\uff09-\u5185\u6838\u7684\u5185\u5b58\u9875\u8868\u4ee5\u53caSKEE\u7684\u5185\u5b58\u9875\u8868\u3002\u5728\u5185\u6838\u7684\u5185\u5b58\u9875\u8868\u4e2d\uff0c\u5185\u5b58\u9875\u8868\u672c\u8eab\uff0c\u4ee5\u53caSKEE\u7684\u4ee3\u7801\u548c\u6570\u636e\u9875\u9762\u6ca1\u6709\u88ab\u6620\u5c04\uff0c\u8fd9\u6837\u5185\u6838\u4fbf\u4e0d\u80fd\u8bbf\u95eeSKEE\uff0c\u4e5f\u65e0\u6cd5\u66f4\u65b0\u5185\u6838\u672c\u8eab\u7684\u5185\u5b58\u9875\u8868\u3002\u800cSKEE\u7684\u5185\u5b58\u9875\u8868\u5305\u542b\u6240\u6709\u5185\u5b58\u7684\u6620\u5c04\u3002\u5185\u6838\u9700\u8981\u66f4\u65b0\u5185\u5b58\u9875\u8868\u65f6\uff0c\u4f1a\u9677\u5165\uff08trap\uff09\u5230SKEE\u4e2d\uff0cSKEE\u4f1a\u68c0\u67e5\u6bcf\u4e00\u4e2a\u5185\u5b58\u9875\u8868\u66f4\u65b0\u64cd\u4f5c\uff0c\u786e\u4fdd\u5176\u4e0d\u4f1a\u7834\u574fSKEE\u548c\u5185\u6838\u4e4b\u95f4\u7684\u9694\u79bb\u3002SKEE\u53e6\u4e00\u8d21\u732e\u662f\u9488\u5bf9ARMv7\u548cARMv8\u5e73\u53f0\u7684\u5185\u6838\u548cSKEE\u5207\u6362\u903b\u8f91\u7684\u8bbe\u8ba1\u3002\u8be5\u5207\u6362\u903b\u8f91\u4fdd\u8bc1\u5207\u6362\u7684\u539f\u5b50\u6027\uff0c\u786e\u5b9a\u6027\u4ee5\u53ca\u552f\u4e00\u6027\u3002\u8fd9\u4e9b\u7684\u521b\u65b0\u8bbe\u8ba1\u4fdd\u8bc1\u5373\u4f7f\u5185\u6838\u4e2d\u5b58\u5728\u6f0f\u6d1e\u5bfc\u81f4\u5185\u6838\u88ab\u653b\u7834\uff0c\u653b\u51fb\u8005\u4f9d\u7136\u4e0d\u80fd\u7a81\u7834SKEE\u548c\u5185\u6838\u4e4b\u95f4\u7684\u9694\u79bb\uff0c\u65e0\u6cd5\u8bbf\u95eeSKEE\u5185\u90e8\u7684\u4ee3\u7801\u548c\u6570\u636e\u3002<\/p>\n

\u6b63\u662f\u7531\u4e8eSKEE\u521b\u65b0\u800c\u4e14\u5b9e\u7528\u7684\u7cfb\u7edf\u8bbe\u8ba1\uff0c\u8be5\u8bba\u6587\u83b7\u5f97NDSS2016\u6770\u51fa\u8bba\u6587\u5956\uff08Distinguished Paper Award\uff09\u3002<\/p>\n

\u4f5c\u8005\u7b80\u4ecb<\/p>\n

\u7533\u6587\u535a\uff0c\u73b0\u4e3aSamsung Research America,Knox Linux\u5185\u6838\u7ec4\u6210\u5458\uff0c\u7814\u7a76\u65b9\u5411\u4e3aLinux\u5185\u6838\u5b89\u5168\u30022015\u5e74\u4e8e\u7f8e\u56fd\u5317\u5361\u5dde\u7acb\u5927\u5b66\u83b7\u5f97\u8ba1\u7b97\u673a\u535a\u58eb\u5b66\u4f4d\uff0c\u5e08\u4eceDr.NingPeng\u548cDr.HuaiyuDai\uff0c\u4ece\u4e8b\u65e0\u7ebf\u7f51\u7edc\u5b89\u5168\u4ee5\u53ca\u64cd\u4f5c\u7cfb\u7edf\u5b89\u5168\u7814\u7a76\u3002\u672c\u79d12010\u5e74\u6bd5\u4e1a\u4e8e\u54c8\u5c14\u6ee8\u5de5\u4e1a\u5927\u5b66\uff0c\u5e08\u4ece\u5f20\u4f1f\u54f2\u8001\u5e08\uff0c\u66fe\u4ee3\u8868\u4fe1\u606f\u5b89\u5168\u56fd\u5bb6\u5de5\u7a0b\u91cd\u70b9\u5b9e\u9a8c\u5ba4\u53c2\u52a0\u9996\u5c4a\u5168\u56fd\u5927\u5b66\u751f\u4fe1\u606f\u5b89\u5168\u7ade\u8d5b\uff0c\u8363\u83b7\u4e00\u7b49\u5956\u3002<\/p>\n

\u53c2\u8003\u6587\u732e<\/p>\n

[1] Linux\u5185\u6838\u6f0f\u6d1e\u7edf\u8ba1\uff0chttp:\/\/www.cvedetails.com\/product\/47\/Linux-Linux-Kernel.html?vendor_id=33<\/a><\/u><\/p>\n

[2] Android Security Advisory, https:\/\/source.android.com\/security\/advisory\/2016-03-18.html<\/u><\/a><\/p>\n

[3] Hypervision Across Worlds: Real-time Kernel Protection from the ARM TrustZone Secure World: Ahmed M. Azab, Peng Ning, Jitesh Shah, Quan Chen, Rohan Bhutkar, Guruprasad Ganesh, Jia Ma, and Wenbo Shen, In CCS, Scottsdale, AZ, 2014<\/p>\n

[4] SKEE: A lightweight Secure Kernel-level Execution Environment for ARM: Ahmed Azab, Kirk Swidowski, Rohan Bhutkar, Jia Ma, Wenbo Shen, Ruowen Wang and Peng Ning, In NDSS, 2016<\/p>\n

[5]\u539f\u6587\u4e0b\u8f7d\u94fe\u63a5\uff1ahttp:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2016\/05\/SKEE\u4e2d\u6587\u6458\u8981.pdf<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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