{"id":69725,"date":"2021-09-23T09:00:00","date_gmt":"2021-09-23T01:00:00","guid":{"rendered":"https:\/\/blog.trendmicro.com.tw\/?p=69725"},"modified":"2021-12-06T16:43:20","modified_gmt":"2021-12-06T08:43:20","slug":"%e5%88%86%e6%9e%90-pegasus-%e9%96%93%e8%ab%9c%e7%a8%8b%e5%bc%8f%e6%89%80%e7%94%a8%e7%9a%84-forcedentry-%e9%9b%b6%e9%bb%9e%e9%81%b8-iphone-%e6%bc%8f%e6%b4%9e%e6%94%bb%e6%93%8a","status":"publish","type":"post","link":"https:\/\/blog.trendmicro.com.tw\/?p=69725","title":{"rendered":"\u5206\u6790 Pegasus \u98db\u99ac\u9593\u8adc\u7a0b\u5f0f\u6240\u7528\u7684 ForcedEntry \u96f6\u9ede\u9078 iPhone \u6f0f\u6d1e\u653b\u64ca"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\"><\/h1>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Citizen Lab \u767c\u5e03\u4e86\u4e00\u9805\u6709\u95dc iPhone \u6700\u65b0\u5a01\u8105\u300cForcedEntry\u300d\u7684\u5831\u544a\u3002\u9019\u500b\u96f6\u9ede\u9078 (zero-click) \u7684\u6f0f\u6d1e\u653b\u64ca\u624b\u6cd5\u4f3c\u4e4e\u80fd\u5920\u7e5e\u904e Apple \u7684 BlastDoor \u5b89\u5168\u6a5f\u5236\uff0c\u8b93\u99ed\u5ba2\u76f4\u63a5\u5b58\u53d6\u88dd\u7f6e\u800c\u4e0d\u5047\u4f7f\u7528\u8005\u4e4b\u624b\u3002<\/p><\/blockquote>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.trendmicro.com\/content\/dam\/trendmicro\/global\/en\/research\/21\/i\/analyzing-pegasus-spywares-zero-click-iphone-exploit-forcedentry-\/ForcedEntry-main.jpg\" alt=\"\u5206\u6790 Pegasus\u9593\u8adc\u7a0b\u5f0f\u6240\u7528\u7684 ForcedEntry \u96f6\u9ede\u9078 iPhone \u6f0f\u6d1e\u653b\u64ca\"\/><figcaption>\u5206\u6790 Pegasus\u9593\u8adc\u7a0b\u5f0f\u6240\u7528\u7684 ForcedEntry \u96f6\u9ede\u9078 iPhone \u6f0f\u6d1e\u653b\u64ca<\/figcaption><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Citizen Lab \u6700\u8fd1\u767c\u5e03\u4e86\u4e00\u4efd<a rel=\"noreferrer noopener\" href=\"https:\/\/citizenlab.ca\/2021\/08\/bahrain-hacks-activists-with-nso-group-zero-click-iphone-exploits\/\" target=\"_blank\">\u5831\u544a<\/a>\uff0c\u5167\u5bb9\u8a73\u8ff0 9 \u540d\u5df4\u6797\u7684\u4eba\u6b0a\u5206\u5b50\u5982\u4f55\u906d\u5230\u7cbe\u5bc6\u7684 iPhone \u6f0f\u6d1e\u653b\u64ca\u3002\u9019\u4e9b\u4eba\u6b0a\u5206\u5b50\u64da\u7a31\u906d\u5230\u4ee5\u8272\u5217 NSO Group \u99ed\u5ba2\u516c\u53f8\u7684 Pegasus (\u98db\u99ac) \u9593\u8adc\u7a0b\u5f0f\u653b\u64ca\uff0c\u7d93\u7531\u5169\u7a2e iMessage \u96f6\u9ede\u9078 (zero-click) \u6f0f\u6d1e\u653b\u64ca\u624b\u6cd5\u99ed\u5165\u5176 iPhone\uff1a\u5176\u4e00\u662f 2020 \u5e74\u767c\u73fe\u7684 <a rel=\"noreferrer noopener\" href=\"https:\/\/citizenlab.ca\/2020\/12\/the-great-ipwn-journalists-hacked-with-suspected-nso-group-imessage-zero-click-exploit\/\" target=\"_blank\">Kismet<\/a>\uff0c\u5176\u4e8c\u662f 2021 \u5e74\u6700\u65b0\u767c\u73fe\u7684 &nbsp;<a rel=\"noreferrer noopener\" href=\"https:\/\/citizenlab.ca\/2021\/08\/bahrain-hacks-activists-with-nso-group-zero-click-iphone-exploits\/\" target=\"_blank\">ForcedEntry<\/a>\u3002\u96f6\u9ede\u9078\u653b\u64ca\u624b\u6cd5\u53ef\u8aaa\u662f\u4e00\u7a2e\u76f8\u7576\u7cbe\u5bc6\u7684\u5a01\u8105\uff0c\u56e0\u70ba\u5b83\u6709\u5225\u65bc\u4e00\u822c\u60e1\u610f\u7a0b\u5f0f\uff0c\u5b8c\u5168\u4e0d\u5047\u4f7f\u7528\u8005\u4e4b\u624b\u5c31\u80fd\u611f\u67d3\u88dd\u7f6e\u3002\u524d\u8ff0\u5169\u7a2e\u624b\u6cd5\u7576\u4e2d\uff0c\u5f8c\u8005\u53c8\u7279\u5225\u503c\u5f97\u95dc\u6ce8\uff0c\u56e0\u70ba\u5b83\u80fd\u7e5e\u904e Apple \u7684 BlastDoor \u5b89\u5168\u6a5f\u5236\uff0c\u800c\u8a72\u6a5f\u5236\u6b63\u662f\u5c08\u70ba\u9632\u7bc4\u96f6\u9ede\u9078\u653b\u64ca\u624b\u6cd5\u800c\u751f\u3002&nbsp;<\/p>\n\n\n\n<p>\u6839\u64da Citizen Lab \u7684\u5831\u544a\uff0cKismet \u653b\u64ca\u624b\u6cd5\u7684\u6d41\u884c\u671f\u9593\u662f\u5f9e 2020 \u5e74 7 \u6708\u81f3 9 \u6708\uff0c\u91dd\u5c0d\u7684\u662f\u4f7f\u7528 iOS 13.5.1 \u81f3 13.7 \u7684\u88dd\u7f6e\uff0c\u81ea\u5f9e Apple \u5728 9 \u6708\u4efd\u63a8\u51fa iOS 14 \u66f4\u65b0\u4e4b\u5f8c\u5c31\u5df2\u7d93\u5931\u6548\u3002\u63a5\u8457\u5728 2021 \u5e74 2 \u6708\uff0cNSO Group \u958b\u59cb\u63a8\u51fa\u80fd\u5920\u7e5e\u904e BlastDoor \u4fdd\u8b77\u7684\u96f6\u9ede\u9078\u6f0f\u6d1e\u653b\u64ca\u624b\u6cd5\uff0c\u4e5f\u5c31\u662f Citizen Lab \u6240\u7a31\u7684\u300cForcedEntry\u300d\u3002\u570b\u969b\u7279\u8d66\u7d44\u7e54 (Amnesty International) \u65d7\u4e0b\u7684 Amnesty Tech (\u96c6\u5408\u4e86\u5168\u7403\u6578\u4f4d\u4eba\u6b0a\u5c08\u5bb6\u8207\u8cc7\u5b89\u7814\u7a76\u4eba\u54e1) \u4e5f\u5728\u9019\u6bb5\u671f\u9593\u89c0\u5bdf\u5230 iMessage \u96f6\u9ede\u9078\u6f0f\u6d1e\u653b\u64ca\u76f8\u95dc\u7684\u6d3b\u52d5\uff0c\u4e26\u5c07\u5b83\u547d\u540d\u70ba\u300c<a href=\"https:\/\/www.amnesty.org\/en\/latest\/research\/2021\/07\/forensic-methodology-report-how-to-catch-nso-groups-pegasus\/\" target=\"_blank\" rel=\"noreferrer noopener\">Megalodon<\/a>\u300d\u3002&nbsp;<\/p>\n\n\n\n<!--more-->\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u6df1\u5165\u7814\u7a76 ForcedEntry<\/strong><\/h3>\n\n\n\n<p><br>\u6839\u64da Citizen Lab \u7684\u5831\u544a\uff0c\u7576\u53d7\u5bb3\u8005\u7684\u88dd\u7f6e\u906d\u5230 ForcedEntry \u6f0f\u6d1e\u653b\u64ca\u6642\uff0c\u88dd\u7f6e\u7684\u8a18\u9304\u6a94\u6703\u51fa\u73fe\u5169\u7a2e\u7576\u6a5f\u60c5\u6cc1\u7684\u8a18\u9304\u3002\u7b2c\u4e00\u7a2e\u662f\u5728\u547c\u53eb ImageIO \u7684\u529f\u80fd\u4f86\u6e32\u67d3 Adobe Photoshop PSD \u8cc7\u6599\u6642\u3002&nbsp;<\/p>\n\n\n\n<p>\u672c\u6587\u5206\u6790\u7684\u662f\u7b2c\u4e8c\u7a2e\u7576\u6a5f\u60c5\u6cc1 (\u8acb\u770b\u5716 1)\uff0c\u9019\u7a2e\u7576\u6a5f\u60c5\u6cc1\u662f\u767c\u751f\u5728\u547c\u53eb CoreGraphics \u7684\u51fd\u5f0f\u4f86\u89e3\u78bc PDF \u6a94\u6848\u4e2d\u4ee5 JBIG2 \u7de8\u78bc\u7684\u8cc7\u6599\u6642\u3002\u6b64\u8655\u7684\u5206\u6790\u5b8c\u5168\u662f\u6839\u64da Citizen Lab \u6240\u63d0\u4f9b\u7684\u6a23\u672c\uff0c\u6211\u5011\u5c1a\u672a\u53d6\u5f97\u5176\u4ed6\u65b0\u6a23\u672c\u3002&nbsp;<\/p>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" width=\"686\" height=\"211\" src=\"\" alt=\"Image from Citizen Lab shows a Symbolicated Type Two crash for ForcedEntry on an iPhone 12 Pro Max running iOS 14.6. The red highlights from Trend Micro Research.\">\u5716 1\uff1a\u9019\u5f35 Citizen Lab \u63d0\u4f9b\u7684\u5716\u7247\uff0c\u986f\u793a\u4e86 ForcedEntry \u6f0f\u6d1e\u653b\u64ca\u624b\u6cd5\u7b2c\u4e8c\u7a2e\u7576\u6a5f\u60c5\u6cc1\u7684\u8a18\u9304(\u6e2c\u8a66\u88dd\u7f6e\uff1aiPhone 12 Pro Max\uff0c\u4f5c\u696d\u7cfb\u7d71\uff1aiOS 14.6)\u3002\u7d05\u8272\u6846\u7dda\u662f Trend Micro Research \u6240\u505a\u7684\u6a19\u8a18\u3002<\/p>\n\n\n\n<p>\u6211\u5011\u5f9e\u9019\u4efd\u7576\u6a5f\u8a18\u9304\u6b78\u7d0d\u51fa\u4ee5\u4e0b\u4e09\u9805\u7d50\u8ad6\uff1a\u7b2c\u4e00\uff0c\u9019\u500b\u96f6\u9ede\u9078\u653b\u64ca\u662f\u5728 iMessage \u8655\u7406\u9644\u4ef6\u6a94\u6848\u6642\u767c\u751f\u3002\u7b2c\u4e8c\uff0cdyld_shared_cache \u7684 slide \u662f 0\uff0c\u9019\u8868\u793a\u6240\u6709\u7cfb\u7d71\u6a21\u7d44\u90fd\u8f09\u5165\u5230\u56fa\u5b9a\u7684\u4f4d\u5740\u4e0a\u3002\u7b2c\u4e09\uff0c\u7576\u6a5f\u9ede\u7684\u4f4d\u5740\u300c0x181d6e228\u300d\u4e26\u975e\u6f0f\u6d1e\u653b\u64ca\u7684\u7b2c\u4e00\u5730\u9ede\u3002\u4ee5\u4e0b\u8a73\u7d30\u8aaa\u660e\u9019\u4e9b\u7d50\u8ad6\u3002<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>CVE-2021-30860 \u7684\u554f\u984c\u6839\u6e90<\/strong><\/h3>\n\n\n\n<p><br>\u6b64\u6f0f\u6d1e\u51fa\u73fe\u5728\u6838\u5fc3\u7e6a\u5716\u6846\u67b6\u300cCoreGraphics.framework\u300d\u7684\u300c&nbsp;<strong>JBIG2Stream::readTextRegionSeg<\/strong>&nbsp;\u300d\u51fd\u5f0f\u5167\uff0c\u5176\u7576\u6a5f\u9ede\u7684\u4f4d\u5740\u300c&nbsp;<strong>0x181d6e228<\/strong>&nbsp;\u300d(\u4e0a\u5716\u7d05\u6846 3 \u6a19\u793a\u8655&nbsp;) \u662f\u5728\u300cJBIG2Stream::readTextRegionSeg\u300d\u51fd\u5f0f\u7684\u7b2c 161 \u884c\uff1a<\/p>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" width=\"648\" height=\"730\" src=\"\" alt=\"Screenshot of the function JBIG2Stream::readTextRegionSeg showing the crash point\">\u5716 2\uff1a\u7576\u6a5f\u9ede\u4f4d\u65bc JBIG2Stream::readTextRegionSeg \u51fd\u5f0f\u5167\u90e8\u3002<\/p>\n\n\n\n<p>\u9996\u5148\uff0c\u7a0b\u5f0f\u6703\u6839\u64da JBIG2SymbolDict \u5340\u6bb5 (segment) \u4f86\u7b97\u51fa\u300cnumSyms&nbsp;\u300d\u7684\u503c\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/marvel-b1-cdn.bc0a.com\/f00000000017219\/www.trendmicro.com\/content\/dam\/trendmicro\/global\/en\/research\/21\/i\/analyzing-pegasus-spywares-zero-click-iphone-exploit-forcedentry-\/Forced%20Entry%20Figure%201.png\" alt=\"Image from Citizen Lab shows a Symbolicated Type Two crash for ForcedEntry on an iPhone 12 Pro Max running iOS 14.6. The red highlights from Trend Micro Research.\"\/><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u300cnumSyms\u300d\u7684\u8cc7\u6599\u985e\u578b\u662f\u6b63\u6574\u6578 (unsigned int)\uff0c\u800c\u300c&nbsp;seg-&gt;getSize()&nbsp;\u300d\u51fd\u5f0f\u7684\u56de\u50b3\u503c\u4e5f\u662f\u6b63\u6574\u6578\u3002\u6240\u4ee5\uff0c\u7531\u65bc\u6574\u6578\u6703\u6ea2\u4f4d\uff0c\u6240\u4ee5 numSyms&nbsp; \u7684\u503c\u61c9\u8a72\u6703\u5c0f\u65bc\u4e00\u500b JBIG2Segment \u7684\u5927\u5c0f\uff0c\u8209\u4f8b\u4f86\u8aaa\uff1anumSyms=1=(0x80000000+0x80000001) &lt; 0x80000000\u3002<\/p>\n\n\n\n<p>\u63a5\u8457\uff0c\u7a0b\u5f0f\u6703\u914d\u7f6e\u4e00\u584a\u8a18\u61b6\u9ad4\u7de9\u885d\u5340\u300c<strong>syms<\/strong>\u300d\uff0c\u5176\u5927\u5c0f\u662f <strong>numSyms * 8<\/strong>&nbsp;\uff1a<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/marvel-b1-cdn.bc0a.com\/f00000000017219\/www.trendmicro.com\/content\/dam\/trendmicro\/global\/en\/research\/21\/i\/analyzing-pegasus-spywares-zero-click-iphone-exploit-forcedentry-\/Forced%20Entry%20D.png\" alt=\"ForcedEntry\"\/><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u6700\u5f8c\uff0c\u7a0b\u5f0f\u5728 syms \u9019\u584a\u7de9\u885d\u5340\u4e2d\u5beb\u5165\u9ede\u9663\u5716\u7684\u5167\u5bb9\uff1a<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/marvel-b1-cdn.bc0a.com\/f00000000017219\/www.trendmicro.com\/content\/dam\/trendmicro\/global\/en\/research\/21\/i\/analyzing-pegasus-spywares-zero-click-iphone-exploit-forcedentry-\/Forced%20Entry%20E.png\" alt=\"ForcedEntry\"\/><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u7531\u65bc\u8ff4\u5708\u57f7\u884c\u7684\u6b21\u6578\u53d6\u6c7a\u65bc JBIG2Segment \u7684\u5927\u5c0f\uff0c\u4f46\u56e0\u70ba\u5b83\u53ef\u80fd\u8d85\u904e\u7de9\u885d\u5340 syms \u7684\u5927\u5c0f\uff0c\u6240\u4ee5\u6703\u5c0e\u81f4\u8cc7\u6599\u5beb\u5165\u4f4d\u7f6e\u8d85\u904e\u7de9\u885d\u5340 syms \u7684\u7bc4\u570d\u3002<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Apple \u5982\u4f55\u4fee\u6b63\u6b64\u554f\u984c<\/strong>?<br><\/h3>\n\n\n\n<p><br>Apple \u5728 iOS 14.8 \u7576\u4e2d\u4fee\u6b63\u4e86\u9019\u500b\u51fd\u5f0f\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/marvel-b1-cdn.bc0a.com\/f00000000017219\/www.trendmicro.com\/content\/dam\/trendmicro\/global\/en\/research\/21\/i\/analyzing-pegasus-spywares-zero-click-iphone-exploit-forcedentry-\/Fig3-forcedentry.png\" alt=\"ForcedEntry\"\/><figcaption>\u5716 3\uff1a\u4fee\u6b63\u5f8c\u7684 JBIG2Stream::readTextRegionSeg \u51fd\u5f0f\u3002<\/figcaption><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u6211\u5011\u53ef\u4ee5\u770b\u5230\uff0cApple \u589e\u52a0\u4e86\u5169\u9805\u908a\u754c\u6aa2\u67e5 (\u5716 3 \u7d05\u6846\u6a19\u793a\u8655) \u4f86\u907f\u514d\u8cc7\u6599\u5beb\u5165\u52d5\u4f5c\u8d85\u51fa syms \u7de9\u885d\u5340\u7bc4\u570d\u3002<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Pegasus \u9593\u8adc\u7a0b\u5f0f\u7684\u6f0f\u6d1e\u653b\u64ca\u624b\u6cd5<\/strong><\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong><em>\u505c\u7528 ASLR<\/em><\/strong><\/p>\n\n\n\n<p>\u6211\u5011\u5c07 iOS 14.6 (18F72) \u4e2d\u7684 <strong>dyld_shared_cache<\/strong> \u8f09\u5165 IDA Pro \u4f86\u57f7\u884c\u975c\u614b\u5206\u6790\uff0c\u7d50\u679c\u4ee4\u4eba\u610f\u5916\u3002\u6211\u5011\u4e0d\u9700\u91cd\u65b0\u8abf\u6574\u5340\u6bb5 (segment) \u7684\u57fa\u5e95\u4f4d\u5740\u5c31\u80fd\u76f4\u63a5\u627e\u5230\u547c\u53eb\u5806\u758a (call stack) \u4e2d\u7684\u4f4d\u5740\u3002<\/p>\n\n\n\n<p>\u82e5\u6211\u5011\u5f9e\u5716 1 \u7576\u4e2d\u7d05\u6846 2 \u6a19\u793a\u7684\u4f4d\u5740\u4f86\u63a8\u7b97\u7684\u8a71\uff0cdyld_shared_cache \u7684 slide \u70ba&nbsp; 0(\u96f6)\u3002\u4f46\u4e00\u822c\u4f86\u8aaa\uff0c\u5728\u7576\u6a5f\u7684\u60c5\u6cc1\u4e0b\u9019\u4e9b\u4f4d\u5740\u61c9\u8a72\u90fd\u5728slide\u5167\u3002<\/p>\n\n\n\n<p>\u5047\u8a2d\u9019\u4efd\u7576\u6a5f\u8a18\u9304\u6c92\u6709\u88ab\u7be1\u6539\u904e\uff0c\u90a3\u9ebc\u6211\u5011\u5f97\u5230\u7684\u7d50\u8ad6\u4ee4\u4eba\u64d4\u5fc3\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0cPegasus \u5728\u6f0f\u6d1e\u653b\u64ca\u4e4b\u524d\u5c31\u5df2\u7d93\u505c\u7528\u4e86\u4f4d\u5740\u7a7a\u9593\u914d\u7f6e\u96a8\u6a5f\u5316 (Address Space Layout Randomization\uff0c\u7c21\u7a31 ASLR) \u529f\u80fd\u3002<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong><em>\u7e5e\u904e PAC \u6a5f\u5236<\/em><\/strong><\/p>\n\n\n\n<p>\u82e5\u6aa2\u8996\u547c\u53eb\u5806\u758a\u8ffd\u8e64 frame 1 \u7684 &nbsp;<strong>0x181d6e20c<\/strong>&nbsp; \u4f4d\u5740\uff0c\u6211\u5011\u53ef\u770b\u5230\u66ab\u5b58\u5668 X0 (JBIG2Stream::findSegment \u51fd\u5f0f\u56de\u50b3\u503c) \u662f\u4e00\u500b JBIG2Segment: \u7684\u5b50\u985e\u5225 (subclass)\u3002<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/marvel-b1-cdn.bc0a.com\/f00000000017219\/www.trendmicro.com\/content\/dam\/trendmicro\/global\/en\/research\/21\/i\/analyzing-pegasus-spywares-zero-click-iphone-exploit-forcedentry-\/Forced%20Entry%20F.png\" alt=\"ForcedEntry\"\/><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u5176 &nbsp;<strong>getType()&nbsp; <\/strong>\u865b\u64ec\u51fd\u5f0f\u53ef\u80fd\u88ab\u56db\u500b\u5b50\u985e\u5225\u5f37\u5236\u53d6\u4ee3 (override)\uff0c\u4f46\u4ee5\u4e0b\u7a0b\u5f0f\u78bc\u986f\u793a\uff0c\u5b83\u5011\u53ea\u662f\u50b3\u56de\u67d0\u500b\u5217\u8209\u503c (enumerate)\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/marvel-b1-cdn.bc0a.com\/f00000000017219\/www.trendmicro.com\/content\/dam\/trendmicro\/global\/en\/research\/21\/i\/analyzing-pegasus-spywares-zero-click-iphone-exploit-forcedentry-\/Forced%20Entry%20G.png\" alt=\"ForcedEntry\"\/><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u4f8b\u5982\uff0c<strong>&nbsp;JBIG2SymbolDict::getType<\/strong>&nbsp; \u53ea\u662f\u50b3\u56de<strong>&nbsp; jbig2SegSymbolDict=1\uff1a<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/marvel-b1-cdn.bc0a.com\/f00000000017219\/www.trendmicro.com\/content\/dam\/trendmicro\/global\/en\/research\/21\/i\/analyzing-pegasus-spywares-zero-click-iphone-exploit-forcedentry-\/Fig5-forcedentry.png\" alt=\"ForcedEntry\"\/><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u56e0\u6b64\uff0c<strong>frame 1 <\/strong>\u61c9\u8a72\u8981\u547c\u53eb &nbsp;<strong>seg-&gt;getType()<\/strong> \u9019\u500b\u865b\u64ec\u51fd\u5f0f\u624d\u5c0d\u3002\u4f46\u5be6\u969b\u4e0a\uff0c\u5b83\u537b\u53cd\u800c\u547c\u53eb\u7576\u524d\u7684\u51fd\u5f0f\u672c\u8eab &nbsp;<strong>(frame 0)<\/strong>\u3002&nbsp;<\/p>\n\n\n\n<p>\u9019\u986f\u793a\uff0c&nbsp;<strong>JBIG2Segment<\/strong> \u7269\u4ef6\u7684\u865b\u64ec\u51fd\u5f0f\u8868 (virtual function table) \u5df2\u7d93\u88ab\u63db\u6389\uff0c\u8868\u793a\u5b83\u7e5e\u904e\u4e86\u6307\u6a19\u9a57\u8b49\u7a0b\u5f0f\u78bc (PAC) \u5b89\u5168\u6a5f\u5236\u3002\u9019\u4e00\u9ede\u4e4b\u6240\u4ee5\u91cd\u8981\uff0c\u662f\u56e0\u70ba PAC \u5b89\u5168\u6a5f\u5236\u7684\u958b\u767c\u5c31\u662f\u70ba\u4e86&nbsp;<a href=\"https:\/\/www.vice.com\/amp\/en\/article\/pkd4kg\/apple-is-going-to-make-it-harder-to-hack-iphones-with-zero-click-attacks?__twitter_impression=true\" target=\"_blank\" rel=\"noreferrer noopener\">\u9632\u7bc4\u96f6\u9ede\u9078\u653b\u64ca<\/a>\uff0c\u800c\u9019\u4e5f\u610f\u5473\u8457\u7576\u6a5f\u9ede\u4e26\u975e\u6f0f\u6d1e\u653b\u64ca\u7684\u7b2c\u4e00\u5730\u9ede\u3002&nbsp;<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u7d50\u8ad6\u8207\u5efa\u8b70<\/strong><\/h3>\n\n\n\n<p><br>\u5c31\u653b\u64ca\u6280\u8853\u4f86\u770b\uff0cPegasus \u9593\u8adc\u7a0b\u5f0f\u5c0d iOS \u4f7f\u7528\u8005\u4f86\u8aaa\u662f\u4e00\u9805\u76f8\u7576\u7cbe\u5bc6\u7684\u5a01\u8105\u3002\u7136\u800c\uff0c\u9019\u985e\u653b\u64ca\u4f3c\u4e4e\u90fd\u91dd\u5c0d\u6975\u7279\u5b9a\u7684\u76ee\u6a19\uff0c\u800c\u975e\u4e00\u822c\u4f7f\u7528\u8005\u3002<\/p>\n\n\n\n<p>\u6709\u95dc Pegasus \u8fd1\u671f\u7684\u653b\u64ca\u8cc7\u8a0a\u90fd\u662f\u4f86\u81ea Citizen Lab \u548c Amnesty Tech \u7684\u9451\u8b58\u5206\u6790\uff0c\u6211\u5011\u5c1a\u672a\u5728\u5916\u754c\u767c\u73fe Pegasus \u7684\u653b\u64ca\u6a23\u672c\u3002\u76ee\u524d\u6211\u5011\u4ecd\u5728\u7a4d\u6975\u641c\u5c0b\u53ca\u76e3\u63a7\u9019\u9805\u5a01\u8105\uff0c\u672a\u4f86\u82e5\u6709\u66f4\u65b0\u7684\u6d88\u606f\uff0c\u6211\u5011\u5c07\u6301\u7e8c\u8ddf\u5927\u5bb6\u5206\u4eab\u3002<\/p>\n\n\n\n<p>\u57fa\u672c\u4e0a\uff0cForcedEntry \u662f\u4e00\u500b\u76f8\u7576\u666e\u901a\u7684\u6a94\u6848\u683c\u5f0f\u89e3\u6790\u6f0f\u6d1e\u3002\u9019\u8ddf\u6211\u5011\u5148\u524d\u767c\u73fe\u7684 <a href=\"https:\/\/www.zerodayinitiative.com\/advisories\/ZDI-20-1238\/\" target=\"_blank\" rel=\"noreferrer noopener\">CVE-2020-9883<\/a> \u985e\u4f3c\uff0c\u90fd\u80fd\u505a\u5230 Pegasus \u6b64\u8655\u6240\u505a\u7684\u4e8b\u3002\u7136\u800c ForcedEntry \u6700\u503c\u5f97\u6ce8\u610f\u7684\u662f\u6211\u5011\u81f3\u4eca\u9084\u4e0d\u66c9\u5f97\u5b83\u662f\u5982\u4f55\u7e5e\u904e&nbsp; PAC \u4e26\u95dc\u9589 ASLR\u3002<\/p>\n\n\n\n<p>\u76ee\u524d\uff0c\u6211\u5011\u5f37\u70c8\u5efa\u8b70\u60a8&nbsp;<a href=\"https:\/\/support.apple.com\/en-us\/HT212807\" target=\"_blank\" rel=\"noreferrer noopener\">\u5c07\u88dd\u7f6e\u66f4\u65b0\u5230 iOS 14.8<\/a>\u3002\u5c31\u5982\u524d\u9762\u6240\u8aaa\uff0c\u4e00\u822c\u7684 iOS \u4f7f\u7528\u8005\u4e26\u975e Pegasus\u9593\u8adc\u7a0b\u5f0f\u7784\u6e96\u7684\u76ee\u6a19\u3002\u6b64\u5916\uff0c\u4f7f\u7528\u8005\u4e5f\u53ef\u63a1\u53d6\u4e00\u4e9b\u7c21\u55ae\u7684\u6b65\u9a5f\u4f86\u52a0\u4ee5\u9632\u7bc4\uff0c\u4f8b\u5982\uff0c\u4f7f\u7528\u8005\u53ef\u5728 iMessages \u4e2d\u5c01\u9396\u4e0d\u660e\u7684\u5bc4\u4ef6\u4eba\u3002\u9084\u6709\u4e00\u7a2e\u66f4\u6fc0\u70c8\u7684\u624b\u6bb5\u5c31\u662f\uff1a\u5728\u88dd\u7f6e\u8a2d\u5b9a\u4e2d\u76f4\u63a5\u505c\u7528 iMessage \u529f\u80fd\u3002<\/p>\n\n\n\n<p>\u539f\u6587\u51fa\u8655\uff1a<a href=\"https:\/\/www.trendmicro.com\/en_us\/research\/21\/i\/analyzing-pegasus-spywares-zero-click-iphone-exploit-forcedentry.html\">\u5206\u6790 Pegasus (\u98db\u99ac) \u9593\u8adc\u7a0b\u5f0f\u6240\u7528\u7684 ForcedEntry \u96f6\u9ede\u9078 iPhone \u6f0f\u6d1e\u653b\u64ca\u624b\u6cd5<\/a> \u4f5c\u8005\uff1aMickey Jin<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Citizen Lab \u767c\u5e03\u4e86\u4e00\u9805\u6709\u95dc iPhone \u6700\u65b0\u5a01\u8105\u300cForcedEntry\u300d\u7684\u5831\u544a\u3002\u9019\u500b\u96f6\u9ede\u9078 ( [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"","_twitter_share_type":"","_linkedin_share_type":"","_pinterest_share_type":"","_linkedin_share_type_page":"","_instagram_share_type":"","_medium_share_type":"","_threads_share_type":"","_google_business_share_type":"","_selected_social_profile":[],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":false,"datetime":null,"platforms":[],"status":"template_only","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[3942,391,2428,1588,15,3654,156,4618,1944],"tags":[2307,2289,2292],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/69725"}],"collection":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=69725"}],"version-history":[{"count":2,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/69725\/revisions"}],"predecessor-version":[{"id":70737,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/69725\/revisions\/70737"}],"wp:attachment":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=69725"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=69725"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=69725"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}