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<h1>黑客們?nèi)绾慰刂颇愕钠?/h1> <div id="xhdxrhx" class="authorTimeSource"> <span>作者：</span> <span>時間：2013-12-31</span> <span>來源：網(wǎng)絡</span> <link rel="stylesheet" type="text/css"/> <span style="float:right; width:130px;margin-right:0px; text-align:right;"> <div id="7rx9lnd" class="nav0"> <ul> <li><a href="javascript:void(0);"><img src="http://www.ex-cimer.com/event/action/images/icon_add_4.png" width="20" border="0" align="absmiddle" />加入技術(shù)交流群</a> <ul> <li style="text-align:center;"><img src="http://www.ex-cimer.com/event/company/images/code_1.jpg" width="130"><br />掃碼加入<br />和技術(shù)大咖面對面交流<br />海量資料庫查詢</li> </ul> </li> </ul> </div> </span> <span style="float:right; width:30px;margin-right:0px; text-align:right;"><a rel="nofollow">收藏</a></span> </div> <div id="hp99ppn" class="hAd4_Afinal20a_back">  <iframe id='a890e388' name='a890e388' src='https://ad.eepw.com.cn/www/delivery/afr.php?zoneid=88&cb=INSERT_RANDOM_NUMBER_HERE' frameborder='0' scrolling='no' width='660' height='60'><a 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style="font-size:14px;"><P>　　你可能在美國影集里看過這樣的情節(jié)：一位具有億萬身家的虛構(gòu)社交網(wǎng)路公司創(chuàng)辦人原本正在開車，卻突然無法操控車輛；于是車子在馬路上橫沖直撞，不停變換車道闖紅燈…</P><P>　　但那位被困在車內(nèi)的駕駛?cè)藚s毫無辦法，他對車子的控制權(quán)、特別是煞車，顯然被車子本身奪走了──也就是說，那輛車被人從遠端遙控了。然后，你看到那輛車子在螢幕上爆炸（很刺激的畫面），但身為軟體開發(fā)天才的男主角在千鈞一發(fā)中逃脫。</P><P>　　以上只是電視劇的情節(jié)，而且是科幻影集；能支援遠端遙控的車輛是一個制造驚悚畫面吸引觀眾的好題材，但在現(xiàn)實中真的有可能嗎？嗯…聽起來不可思議，但是，有。</P><P>　　美國華盛頓大學（University of Washington）與加州大學圣地牙哥分校（University of California-San Diego）的研究團隊，共同發(fā)表了一份《汽車攻擊面的綜合實驗性分析（Comprehensive Experimental Analyses of Automotive Attack Surfaces）》技術(shù)論文，提供給美國國家科學院（NAS）一個針對電子車輛控制與意外加速議題的委員會參考。</P><P>　　NAS的立場是為了協(xié)助厘清汽車產(chǎn)業(yè)界對于車載電子裝置是否可能遭受黑客攻擊的質(zhì)疑──傳統(tǒng)觀念認為，黑客若要達到攻擊目的，會需要將發(fā)動攻擊的硬體與車載電腦網(wǎng)路實際連結(jié)。因此論文作者以最新的量產(chǎn)轎車為平臺，進行了系統(tǒng)性與實證性的遠端攻擊面分析。</P><P>　　而研究人員在分析過程中發(fā)現(xiàn)，以往在現(xiàn)實世界不曾有過（像電視影集情節(jié)那樣）嚴重的汽車安全漏洞危及車輛與駕駛?cè)耍骸皞鹘y(tǒng)汽車并不支援連網(wǎng)功能，因此汽車制造商也不需要預防外來敵人可能會采取的行動。”但是他們提出警告：“我們的汽車系統(tǒng)現(xiàn)在支援廣泛的連結(jié)功能，路上行駛的數(shù)百萬車輛能直接透過手機與<a class="contentlabel" href="http://www.ex-cimer.com/news/listbylabel/label/網(wǎng)際網(wǎng)路"><em>網(wǎng)際網(wǎng)路</em></a>來對付?！?/P><P>　　<img onload="if(this.width>620)this.width=620;" onclick="window.open(this.src)" style="cursor:pointer" height=312 alt=根據(jù)NAS委托研究，汽車可能遭受攻擊的安全漏洞是存在的 src="http://editerupload.eepw.com.cn/fetch/20140414/237427_1_0.jpg" width=413 border=0></P><P>　　圖題：根據(jù)NAS委托研究，汽車可能遭受攻擊的安全漏洞是存在的</P><P>　　恩智浦半導體（NXP）汽車系統(tǒng)與應用部門工程主管Dirk Besenbruch表示，上述論文激勵該公司研究汽車安全議題。他指出，目前汽車電子裝置采用的<a class="contentlabel" href="http://www.ex-cimer.com/news/listbylabel/label/CAN總線"><em>CAN總線</em></a>是一種“良好的容錯網(wǎng)路”，但黑客們確實有許多種方法能透過<a class="contentlabel" href="http://www.ex-cimer.com/news/listbylabel/label/網(wǎng)際網(wǎng)路"><em>網(wǎng)際網(wǎng)路</em></a>對車內(nèi)的電子控制單元（<a class="contentlabel" href="http://www.ex-cimer.com/news/listbylabel/label/ECU"><em>ECU</em></a>）發(fā)動攻擊。</P><P>　　CAN 總線所提供的彈性能打造安全、具成本效益的網(wǎng)路，讓供應商為汽車添加各種透過電腦控制的系統(tǒng)（從車窗、門鎖控制，到煞車、引擎控制等安全關(guān)鍵功能）；但該種彈性也可能為新型態(tài)的黑客攻擊提供機會──例如侵入環(huán)繞所有車內(nèi)電腦控制系統(tǒng)（包括煞車、引擎控制等關(guān)鍵任務功能）的汽車內(nèi)部網(wǎng)路。</P><P>　　Besenbruch坦承，舉例來說，全程從遠端控制汽車音響音量，甚至更糟的，蓄意停止或啟動汽車引擎，是完全有可能做到的。</P><P>　　那黑客到底要如何從遠端侵入汽車網(wǎng)路？Besenbruch指出，提供車廠技術(shù)服務人員在日常車輛保養(yǎng)維護中診斷汽車狀況、以及進行<a class="contentlabel" href="http://www.ex-cimer.com/news/listbylabel/label/ECU"><em>ECU</em></a>編程的車載診斷系統(tǒng)（On-board diagnostics，OBD）就是一個管道。</P><P>　　此外黑客也可以透過將偽代碼（false code）植入MP3檔案中，來追蹤車內(nèi)的娛樂系統(tǒng)；這聽起來沒什么大不了，但一旦惡意程式進駐車用娛樂系統(tǒng)，就像是癌細胞一樣，可能通過互連的<a class="contentlabel" href="http://www.ex-cimer.com/news/listbylabel/label/CAN總線"><em>CAN總線</em></a>危及其他車用電子零件。</P><P>　　在前述的論文中還提到：“我們發(fā)現(xiàn)能通過撥打車用電話號碼，或是播放特制的聲音信號（用iPod編碼），就能取得汽車的控制權(quán)，威脅車內(nèi)嵌入的車用資通訊系統(tǒng)。”其他黑客攻擊管道還包括藍牙、Wi-Fi等各種短距離無線連結(jié)接口，遙控無鑰匙門鎖、RFID門鎖、胎壓監(jiān)測系統(tǒng)，以及手機通訊接口、GPS、衛(wèi)星 /數(shù)位收音機系統(tǒng)等。</P><P>　　當然，以透過藍牙進行攻擊的案例來說，黑客得先在靠近汽車接收器的地方布置無線發(fā)送器；接著黑客還需要了解該車輛的藍牙MAC位置，才能在遠端利用汽車的安全漏洞，感覺會是個很復雜的工作。但研究人員指出，分析結(jié)果顯示，盡管需要費比較大的功夫來布置并接近攻擊車輛，有企圖心的黑客確實能達到攻擊目的。</P><P>　　因此，在遠端透過無線連結(jié)接口控制車輛并不是很難做到；上述論文的作者們還發(fā)現(xiàn)，大部分車用藍牙裝置并不需要與使用者進行任何互動，就能完成配對。論文作者指出，無線連結(jié)頻道帶來許多安全漏洞：“讓黑客能根據(jù)需求遠端觸發(fā)行動、甚至橫跨多臺車輛同步運作或是以交互方式進行控制?！?/P><P>　　Besenbruch也同意以上看法，他表示，不同于金融應用領(lǐng)域的信用卡、個人識別碼、ATM機器，都是以在一個封閉的系統(tǒng)內(nèi)運作為前提進行設計：“汽車產(chǎn)業(yè)面臨特別嚴苛的技術(shù)挑戰(zhàn)。”</P><P>　　他進一步指出，汽車制造商致力于維護一個開放性的系統(tǒng)，因此他們就不必每次在開發(fā)新車型時，又重新打造一個新的控制系統(tǒng)；目前有部分車輛內(nèi)部已經(jīng)有超過70個控制單元，所有這些電子控制單元都是相互連結(jié)的。</P> </span>  <div class="ldd7nnv" id="coverDiv" class="article_reg" style="width:100%;overflow:hidden;display:none;z-index:10;position:absolute;left:0;background:#fff;"> <center> <img src="https://webstorage.eepw.com.cn/images/display/reg.jpg" border="0" usemap="#Map" /> <map name="Map" id="Map"> <area shape="rect" coords="133,235,319,253" target="_blank" /> <area 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