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\u672c\u6587\u4f1a\u91cd\u70b9\u4ecb\u7ecd\u4e00\u4e2a\u6709\u8da3\u7684TOCTOU\u6f0f\u6d1e\u6848\u4f8b\uff08CVE-2022-25637\uff09\uff0c\u4ee5\u53ca\u5176\u4ed6\u4e00\u4e9b\u6f0f\u6d1e\u3002<\/p>\n
\u4f17\u6240\u5468\u77e5\uff0cMSI\u5f00\u53d1\u4e86\u4e00\u4e2a\u540d\u4e3aMSI Dragon Center\u7684\u4fbf\u6377\u5de5\u5177\uff0c\u5176\u76ee\u7684\u662f\u68c0\u7d22\u6709\u5173\u8ba1\u7b97\u673a\u7edf\u8ba1\u4fe1\u606f\uff08\u5373GPU\/CPU\u4f7f\u7528\u60c5\u51b5\uff09\u5e76\u63a7\u5236\u786c\u4ef6\u76f8\u5173\u8bbe\u7f6e\u3002<\/p>\n
\u4e0d\u8fc7\u4ece\u5b9e\u9645\u53cd\u9988\u6765\u770b\uff0c\u5b83\u8fd0\u884c\u5f97\u5e76\u4e0d\u597d\uff0c\u51fa\u73b0\u4e86\u8bb8\u591aUI\u95ee\u9898\u5e76\u4e14\u52a0\u8f7d\u65f6\u95f4\u6162\u3002\u6709\u7814\u7a76\u4eba\u5458\u5728\u8c03\u6574MSI\u7535\u8111\u4e0a\u98ce\u6247\u7684\u901f\u5ea6\u65f6\uff0c\u65e0\u7591\u53d1\u73b0\u4e86\u5176\u4e2d\u7684\u95ee\u9898\uff0c\u5f88\u53ef\u80fd\u662fMSI\u4f7f\u7528\u4e86\u5185\u6838\u9a71\u52a8\u7a0b\u5e8f\u3002\u672c\u6587\u7684\u4f5c\u8005\u68c0\u67e5\u8bc1\u5b9e\u4e86MSI\u4f7f\u7528\u5185\u6838\u9a71\u52a8\u7a0b\u5e8f\u6765\u6267\u884cDragon Center\u63d0\u4f9b\u7684\u4e00\u4e9b\u529f\u80fd\uff0c\u5373\u98ce\u6247\u63a7\u5236\u529f\u80fd\u662f\u901a\u8fc7WMI\u5bf9\u8c61\u6216\u4f9b\u5e94\u5546\u7279\u5b9a\u7684API(\u5982NvAPI_GPU_SetCoolerLevels)\u5b8c\u6210\u7684\uff0c\u5e76\u6ca1\u6709\u5728Dragon Center\u4ee3\u7801\u4e2d\u5b9e\u73b0\u3002\u6b64\u5916\uff0cDragon Center\u52a0\u8f7d\u4e86\u4e00\u4e2a\u540d\u4e3aWinIO\u7684\u9a71\u52a8\u7a0b\u5e8f\uff0c\u8fd9\u663e\u7136\u4e0e\u98ce\u6247\u63a7\u5236\u7684\u903b\u8f91\u65e0\u5173\u3002\u7efc\u5408\u4e0a\u8ff0\u4e8b\u4ef6\uff0c\u6211\u5f00\u59cb\u7814\u7a76WinIo\u9a71\u52a8\u7a0b\u5e8f\uff0c\u56e0\u4e3a\u5b83\u53ef\u80fd\u4f1a\u6784\u6210\u4e00\u4e2a\u6709\u8da3\u7684\u653b\u51fb\u9762\u3002<\/p>\n
WinIO\u662f\u7531www.internals.com\u5f00\u53d1\u7684\u8457\u540d\u5185\u6838\u9a71\u52a8\u7a0b\u5e8f\uff08\u8be5\u7f51\u7ad9\u5df2\u4e0d\u518d\u5728\u7ebf\uff0c\u4f46\u53ef\u4ee5\u901a\u8fc7archive.org\u8bbf\u95ee\uff09\u3002WinIO\u9a71\u52a8\u7a0b\u5e8f\u5e93\u5141\u8bb832\u4f4d\u548c64\u4f4dWindows\u7528\u6237\u6a21\u5f0f\u8fdb\u7a0b\u76f4\u63a5\u8bbf\u95eeI\/O\u7aef\u53e3\u3001MSR\u5bc4\u5b58\u5668\u548c\u7269\u7406\u5185\u5b58\uff0c\u5b83\u5df2\u88ab\u8bb8\u591a\u4f9b\u5e94\u5546\u5e7f\u6cdb\u4f7f\u7528\u3002\u7531\u4e8e\u5b83\u5177\u6709\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u56e0\u6b64\u8d23\u4efb\u91cd\u5927\uff0c\u9a71\u52a8\u7a0b\u5e8f\u5e94\u8be5\u53ea\u5141\u8bb8\u7279\u6743\u7528\u6237\u4f7f\u7528\u8fd9\u4e9b\u529f\u80fd\u3002<\/p>\n
\u7136\u800c\uff0c\u5728WinIo\u4e2d\uff0c\u60c5\u51b5\u6709\u6240\u4e0d\u540c\uff0c\u4efb\u4f55\u7528\u6237\u90fd\u53ef\u4ee5\u4e0e\u4e4b\u4ea4\u4e92\uff0c\u5305\u62ec\u6c99\u76d2\u5e94\u7528\u7a0b\u5e8f\u3002WinIo\u53ef\u4ee5\u7b80\u5355\u5730\u5728\u8bbe\u5907\u5bf9\u8c61\u4e0a\u8bbe\u7f6e\u4e00\u4e2a\u5b89\u5168\u63cf\u8ff0\u7b26\uff0c\u4ee5\u907f\u514d\u4f4e\u6743\u9650\u7528\u6237\u4e0e\u5176\u4ea4\u4e92\uff0c\u5982\u4e0b\u9762\u7684\u4ee3\u7801\u7247\u6bb5\u6240\u793a\u3002<\/p>\n
\n
\u5c06SDDL\u5e94\u7528\u4e8e\u8bbe\u5907\u5bf9\u8c61<\/p>\n
\u6211\u5728\u6211\u7684\u8bbe\u5907\u4e0a\u53d1\u73b0\u7684WinIo\u7248\u672c\u662f\u9a71\u52a8\u7a0b\u5e8f\u7684\u65e9\u671f\u7248\u672c\uff08\u6211\u4eec\u6000\u7591\u5b83\u662fWinIo 2.0\u7248\uff09\uff0c\u5373\u4f7f\u662f\u6700\u7b80\u5355\u7684\u6f0f\u6d1e\u4e5f\u6781\u6613\u5bf9\u5176\u53d1\u8d77\u653b\u51fb\uff0c\u4e00\u4e2a\u7b80\u5355\u7684DeviceIoControl\u8bf7\u6c42\u53ef\u80fd\u4f1a\u7834\u574f\u5806\u6808\u3002\u901a\u8fc7\u4f7f\u7528\u5177\u6709IOCTL\u4ee3\u78010x80102040\u7684DeviceIoControl\u53d1\u9001I\/O\u8bf7\u6c42\uff0c\u7814\u7a76\u4eba\u5458\u5f97\u5230\u4e86\u4e00\u4e2amemmove\u65b9\u6cd5\u3002<\/p>\n
\n
WinIo\u8c03\u5ea6\u51fd\u6570\uff1a\u6613\u53d7\u653b\u51fb\u7684memmove\/memcpy<\/p>\n
\u6b64memmove\u7f3a\u5c11\u4efb\u4f55\u53c2\u6570\u68c0\u67e5\u3002\u66f4\u51c6\u786e\u5730\u8bf4\uff0c\u5b83\u5c5e\u4e8e\u63a7\u5236\u957f\u5ea6\u53c2\u6570\uff0c\u8be5\u53c2\u6570\u6e90\u81eaSystemBuffer\u3002\u56e0\u6b64\uff0c\u901a\u8fc7\u6307\u5b9a\u5927\u4e8eIOPM\u672c\u5730\u53d8\u91cf\u957f\u5ea6\u7684\u957f\u5ea6\uff0c\u6211\u4eec\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u7834\u574f\u5806\u6808\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u91cd\u5199\u672c\u5730\u5806\u6808\u6570\u636e\uff0c\u8fd9\u662f\u4e00\u4e2a\u7ecf\u5178\u7684\u7f13\u51b2\u533a\u6ea2\u51fa\u573a\u666f\uff0c\u5b83\u53ef\u4ee5\u5bfc\u81f4\u91cd\u5199\u8c03\u7528\u65b9\u7684\u8fd4\u56de\u6307\u9488\uff0c\u518d\u52a0\u4e0a\u4f7f\u7528ROP\u94fe\uff0c\u6700\u7ec8\u5bfc\u81f4\u6743\u9650\u5347\u7ea7\u3002<\/p>\n
\u7136\u800c\uff0c\u5b58\u5728\u53e6\u4e00\u4e2a\u6f0f\u6d1e\uff0c\u5373\u901a\u8fc7\u7269\u7406\u5185\u5b58\u6620\u5c04\u7684\u6743\u9650\u5347\u7ea7\uff0c\u8fd9\u5141\u8bb8\u6211\u4eec\u62e5\u6709\u4e00\u4e2a\u5f3a\u5927\u7684R\/W\u539f\u8bed\u3002<\/p>\n
\n
WinIO\u4e2d\u7684\u4efb\u610f\u5185\u5b58R\/W\u51fd\u6570<\/p>\n
\u6b64\u65f6\uff0c\u4f1a\u51fa\u73b0\u4e00\u4e2a\u95ee\u9898\uff0c\u8fd9\u4e2a\u4ee3\u7801\u5e93\u662f\u5426\u53ef\u4ee5\u7528\u4e8e\u5176\u4ed6\u5730\u65b9\\\u9a71\u52a8\u7a0b\u5e8f\uff1f<\/p>\n
\u5bfb\u627e\u5176\u4ed6\u6613\u53d7\u653b\u51fb\u7684\u7a0b\u5e8f<\/strong><\/span><\/p>\n \u6211\u4eec\u5728VirusTotal\u4e2d\u7f16\u5199\u4e86\u4e00\u4e2a\u76f8\u5bf9\u7b80\u5355\u7684\u67e5\u8be2\uff0c\u5e76\u627e\u5230\u4e86114\u4e2a\u6f5c\u5728\u9a71\u52a8\u7a0b\u5e8f\u7684\u5339\u914d\u9879\uff0c\uff0c\u8fd9\u4e9b\u6f5c\u5728\u9a71\u52a8\u7a0b\u5e8f\u53ef\u80fd\u4e0e\u6211\u4eec\u7684\u8106\u5f31\u9a71\u52a8\u7a0b\u5e8f\u5171\u4eab\u76f8\u540c\u7684\u4ee3\u7801\u5e93\u3002<\/p>\n \u901a\u8fc7\u5feb\u901f\u6d4f\u89c8\u4e00\u4e9b\u9a71\u52a8\u7a0b\u5e8f\u7684\u9006\u5411\u4ee3\u7801\uff0c\u8bb8\u591a\u4f9b\u5e94\u5546\u4f3c\u4e4e\u4f7f\u7528\u4e86WinIo\u9a71\u52a8\u7a0b\u5e8f\u7684\u76f8\u540c\u6613\u53d7\u653b\u51fb\u7684\u4ee3\u7801\u5e93\u3002<\/p>\n \u5176\u4e2dRazer Synapse Service.sys\u7279\u522b\u5f15\u8d77\u4e86\u6211\u7684\u6ce8\u610f\u3002<\/p>\n \n Razer Synapse Servicesys VirusTotal\u7ed3\u679c<\/p>\n \u4e09\u4e2a\u5f02\u5e38\u7684Razer Synapse<\/strong><\/span><\/p>\n \u7814\u7a76\u4eba\u5458\u7684\u8bbe\u5907\u4e0a\u5b89\u88c5\u7684\u662fRazer Synapse\uff0cRazer Synapse(\u96f7\u86c7\u4e91\u9a71\u52a8)\u662f\u6b3e\u4e91\u7aef\u8f6f\u4ef6,\u914d\u5408Razer\u7684\u952e\u9f20\u4f7f\u7528,\u53ef\u4ee5\u628a\u6e38\u620f\u914d\u7f6e\u6587\u4ef6\u3001\u5b8f,\u5df2\u7ecf\u9f20\u6807\u7b49\u7684\u8bbe\u7f6e\u53c2\u6570\u540c\u6b65\u5230\u4e91\u7aef\u3002Razer Synapse\u52a0\u8f7d\u4e86\u4e00\u4e9b\u9a71\u52a8\u7a0b\u5e8f\uff0c\u5176\u4e2d\u4e4b\u4e00\u662fRazer Synape\u670d\u52a1\u3002sys\u2013\u5177\u6709\u4e0d\u540c\u540d\u79f0\u7684WinIo\u9a71\u52a8\u7a0b\u5e8f\u3002\u901a\u5e38\uff0c\u5f53\u52a0\u8f7dWinIo\u9a71\u52a8\u7a0b\u5e8f\u65f6\uff0c\u4e0d\u4f1a\u5bf9\u8bbe\u5907\u5bf9\u8c61\u8bbe\u7f6e\u5b89\u5168\u9650\u5236\u3002\u7136\u800c\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5b83\u6709\u4e00\u4e2a\u9650\u5236\u6027\u7684\u5b89\u5168\u63cf\u8ff0\u7b26\u3002<\/p>\n \n \u5e94\u7528\u4e8eRazer\u9a71\u52a8\u7a0b\u5e8f\u7684SDDL<\/p>\n \u6b64\u65f6\uff0c\u901a\u5e38\u5e94\u8be5\u653e\u5f03\u6b64\u9a71\u52a8\u7a0b\u5e8f\uff0c\u5373\u4f7f\u5b83\u662f\u9519\u8bef\u7684\uff0c\u56e0\u4e3a\u4e3a\u4e86\u4e0e\u6b64\u9a71\u52a8\u7a0b\u5e8f\u4ea4\u4e92\uff0c\u4f60\u9700\u8981\u5177\u6709\u9ad8\u6743\u9650\uff0c\u8fd9\u610f\u5473\u7740\u4f60\u5df2\u7ecf\u53ef\u4ee5\u6267\u884c\u7279\u6743\u64cd\u4f5c\u3002<\/p>\n \u5728Windows\u4e2d\uff0c\u5982\u679c\u4f60\u4ee5admin+\u7684\u8eab\u4efd\u5f00\u59cb\uff0c\u90a3\u4e48\u8ba9\u9a71\u52a8\u7a0b\u5e8f\u505a\u4e00\u4e9b\u5f02\u5e38\u7684\u64cd\u4f5c\u5e76\u4e0d\u4f1a\u88ab\u89c6\u4e3a\u662f\u4e0d\u5b89\u5168\u7684\u4e8b\u60c5\u3002\u7531\u4e8e\u9a71\u52a8\u7a0b\u5e8f\u6ca1\u6709\u8bbe\u7f6e\u5b89\u5168\u63cf\u8ff0\u7b26\uff0c\u6240\u4ee5\u8fd9\u4e00\u5b9a\u662f\u5728\u5176\u4ed6\u5730\u65b9\u5b8c\u6210\u7684\u3002<\/p>\n \u6839\u636eMSDN\u7684\u63cf\u8ff0\uff1a\u201c\u8bbe\u5907\u5bf9\u8c61\u7684\u5b89\u5168\u6027\u53ef\u4ee5\u7531\u653e\u7f6e\u5728INF\u6587\u4ef6\u4e2d\u6216\u4f20\u9012\u7ed9IoCreateDeviceSecure\u7684SDDL\u5b57\u7b26\u4e32\u6307\u5b9a\u3002\u201d<\/p>\n \u73b0\u5728\uff0c\u6211\u4eec\u5e94\u8be5\u4ed4\u7ec6\u5206\u6790\u4e00\u4e0bINF\u6587\u4ef6\uff0c\u4f46\u4ee4\u4eba\u60ca\u8bb6\u7684\u662f\uff0c\u5e76\u6ca1\u6709INF\u6587\u4ef6\uff01<\/p>\n \u4e0d\u5f97\u4e0d\u8bf4\u8fd9\u662f\u4e00\u4e2a\u5f88\u5947\u602a\u7684\u60c5\u51b5\uff0c\u6211\u4eec\u6000\u7591Razer Synapse Service.exe\u5c06SDDL\u8bbe\u7f6e\u4e3a\u9a71\u52a8\u7a0b\u5e8f\u521b\u5efa\u7684\u8bbe\u5907\u5bf9\u8c61\u3002\u4e3a\u6b64\uff0c\u6211\u4eec\u76d1\u63a7\u4e86Procmon\u4e2d\u7684\u7cfb\u7edf\uff0c\u5e76\u6ce8\u610f\u5230\u8be5\u7a0b\u5e8f\u8d1f\u8d23\u52a0\u8f7dRazer Synapse Service.sys\u9a71\u52a8\u7a0b\u5e8f\u3002<\/p>\n \n \u51c6\u5907\u5b89\u88c5 \u201cRazer Synapse Service.sys\u201d<\/p>\n 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