澶ф紶鑽掗|涓涓潚娴锋补鐢板瓙寮熺殑濂嬫枟鍙

涓涓潚娴锋补鐢板瓙寮熺殑濂嬫枟鍙

瑙f瀽802.11n瀹夊叏鐨勪簲涓棶棰

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17:47 , 鍖楃含36搴
802.11n鍙疄鐜板瑕佹眰鐨勭Щ鍔ㄥ簲鐢ㄩ儴缃诧紝鍚屾椂瀹冧篃鏄竴涓垚鐔熺殑閲岀▼纰戯紝寰堝瀹㈡埛涔愪簬澶ц妯″湴閮ㄧ讲鏃犵嚎缃戠粶锛岀敋鑷虫潵鏇挎崲浠ュお缃戯紙Ethernet锛夈傝繖绉嶆墿寮犲ぇ澶у鍔犱簡鏃犵嚎瀹夊叏鍙婃棤绾垮畨鍏ㄦ湇鍔″涓氬姟鐨勯噸瑕佹с俈AR锛堝鍊肩粡閿鍟嗭級鍜岀郴缁熼泦鎴愬晢鍙互閫氳繃鎻愪緵鏇存湁鏁堜笖鏇村叿瑙勬ā鐨刉LAN瀹夊叏瑙e喅鏂规锛屽寘鎷熀浜庝簯鐨勬湇鍔℃潵寰堝ソ鍦板埄鐢ㄨ繖涓甯傚満闇姹傘

802.11n瀹夊叏鐨勫彲鐢ㄦ

鐢变簬WLAN浼氫簤澶烘湁闄愮殑鏈巿鏉冮璋憋紝鏃犵嚎鐢靛皠棰戯紙RF锛夊共鎵扮殑鍑忓皯瀵逛簬纭繚鍙敤鎬т互鍙婂噺灏戞嫆缁濇湇鍔′簨浠舵潵璇撮潪甯搁噸瑕併傜幇鍦紝鎴戜滑涓嶈璁轰俊鍙峰己寮遍棶棰橈紝鑰屾槸瀵绘壘浣跨敤鐜囪緝楂樼殑棰戠巼锛屼粠鑰岄伩鍏嶅叾琚畬鍏ㄥ崰鐢ㄣ傚厤璐圭殑"stumblers"锛堣绠楁満娴嬭瘯杞欢锛夊彲浠ヨ鎴戜滑鏇村姞杞绘澗鍦拌娴嬪綋鍓嶈鍗犵敤鐨刉i-Fi棰戦亾鎯呭喌锛屼絾寰堝皯鏈夊鎴风煡閬撳浣曚娇鐢≧F棰戣氨鍒嗘瀽浠傝繖灏辨彁渚涗簡璁稿鐨勫競鍦烘満閬囷紝澶уぇ甯﹀姩浜嗕緥濡侳luke AnalyzeAir銆丮etageek Wi-Spy銆佹垨Wi-Fi Sleuth绛夌Щ鍔ㄩ璋卞垎鏋愪华鐨勪娇鐢ㄣ

RF骞叉壈鏃犳椂鏃犲埢涓嶅湪鍙樺寲锛屼絾鏄紝澶у鏁颁笉甯屾湜绯荤粺鍑虹幇鍋滄満鐘跺喌鐨勫鎴蜂篃璁镐細鍊惧悜浜庤喘涔癛F棰戣氨鍒嗘瀽浠紝鐒跺悗鎵綱AR锛堝鍊肩粡閿鍟嗭級鏉ュ煿璁備絾鏄緥濡傛潵鑷狝ruba, Cisco, Meru鍙奙otorola鐨勬湁浜涙柊浜у搧锛屽凡缁忓缓绔嬩簡涓绉嶅彲閫夋嫨鐨勪氦浠樻ā寮忥細閿鍞甫鏈夐璋卞垎鏋愬姛鑳界殑鏃犵嚎AP銆備簯鏈嶅姟锛岀敋鑷冲彲浠ラ氳繃杩欎簺AP璁惧鍚戜緵搴斿晢杩愯惀鏈嶅姟鍣ㄥ仛鍑烘湁鍏砇F鐨勬姤琛紝璇稿Meru鐨 E(z)RF Spectrum Manager 鎴朇isco鐨 MSE CleanAir Technology銆

鏃犵嚎瀹夊叏鏈嶅姟锛氭帶鍒禬LAN璁块棶

鏂802.11n璁惧闆嗗悎浜嗚濡802.11a/g璁惧鈥斺擶PA2杩欑闀胯窛绂籛i-Fi璁よ瘉璁惧鐨勫畨鍏ㄥ姛鑳姐備絾鏄紝褰802.11n璁惧閰嶇疆杈冮檲鏃э紝閫夐」杈冨急(璇稿WPA-TKIP 鎴 WEP)鏃讹紝802.11n璁惧灏辨棤娉曡揪鍒拌緝楂樼殑鍚炲悙閲(>54 Mbps)銆傛澶栵紝闅忕潃鍚勪紒涓氱粍缁囬愭笎澶ц妯″湴鍦ㄧ綉缁滀腑瀹炴柦鏃犵嚎瑕嗙洊璁块棶锛屼粬浠鏈巿鏉冪殑鏃犵嚎缃戠粶浣跨敤鎯呭喌瓒婃潵瓒婃晱鎰熴傚洜姝わ紝閫氬父璁や负鍗囩骇802.11n鏄彁渚涘苟鍔犲己WLAN瀹夊叏鐨勬渶濂芥柟寮忋

瀹㈡埛鏈熸湜WPA2-PSK鍜 WPA2-802.1X鑳藉琚撼鍏LAN鍩虹鏋舵瀯銆備絾缁忛攢鍟嗗彲閫氳繃鎻愪緵浜掍负琛ュ厖鐨勮璇佸拰缃戠粶璁块棶鎺у埗浜у搧鏉ュ疄鐜板鎴风殑鏈熸湜銆備緥濡傦紝AP璁惧鍜屾帶鍒跺櫒鍙墽琛802.1X璁よ瘉锛屼絾鏄竴涓802.1X-capable RADIUS鏈嶅姟鍣ㄩ渶瑕佸畬鏁寸殑浜嬩欢鎻忚堪銆俈AR浠暱鏈熷嚭鍞甊ADIUS鏈嶅姟鍣紝璇稿Cisco鐨凙CS鎴朖uniper鐨凷BR锛屼絾鏄繙绋嬪姙鍏鍜孲MB鎴栬涓嶉渶瑕佺幇鍦篟ADIUS鏈嶅姟鍣ㄦ垨鍛樺伐鏉ュ仛鏀寔銆傝繖涓绌虹櫧甯傚満涔熻浼氱敱鍩轰簬浜戠殑802.1X璁よ瘉鏈嶅姟鏉ュ~琛ャ

缃戠粶璁块棶鎺у埗瀛樺湪鐫鏇存湁鍒╃殑鏈洪亣銆侼AC浜у搧涓802.1X鍙奟ADIUS鐩稿惢鍚堬紝澧炲姞鐨勯杩炴帴鎵弿鏈哄埗鍙‘淇漌i-Fi瀹㈡埛绔殑鍚堣鎬э紝骞惰兘澶熸嫆缁濇垨闅旂涓嶅叿鍚堣鎬х殑瀹㈡埛绔備絾鏄浜庝笉鍚岀殑瀹㈡埛绔潵璇村皢NAC鏁村悎鍒板ぇ鍨嬬綉缁滀腑涔熸湁涓嶅悓鐨勭儲鎭笺俉LAN鍗囩骇鏄疄鐜板湪涓涓畝鍗曞绔嬬殑鍦扮偣閮ㄧ讲NAC鐨勬満浼氾紝骞惰兘澶熷府鍔╁鎴峰湪浣撻獙NAC濂藉鏃舵劅鍙楁洿濂界殑鏃犵嚎璁块棶鎵╁睍浣撻獙銆

鏃犵嚎鍏ヤ镜妫娴嬪拰闃插尽

瀹㈡埛甯屾湜瀵规祦姘揂P妫娴嬶紝濡俉PA2绛夊彲浠ュ祵鍏ュ埌WLAN鍩虹璁炬柦涓備负浜嗚閬块闄┾斺斿挨鍏舵槸鍦ㄩ浂鍞涓氥佸尰鐤椾繚闄╄涓氫互鍙婇噾铻嶆湇鍔¤涓氣斺斿鎴峰彲鑳戒細鍙戠幇娴佹皳鎵弿骞朵笉鑳藉鏈夋晥鍦版娴嬪強闃绘骞挎硾鐨勫▉鑳併傝繖灏嗕负闆嗘垚鐨勬垨绗笁鏂规棤绾垮叆渚甸槻寰$郴缁 (WIPS)鐨勯攢鍞甫鏉ユ満浼氥

闆嗘垚鐨刉IPS鏇村鏄撻攢鍞紱灏嗘櫘閫氱殑AP璁惧杞崲涓轰笓鐢ㄧ殑浼犳劅鍣ㄥ彲鐢ㄦ潵鐩戞祴鏃犵嚎閫氫俊涓彲鑳藉瓨鍦ㄧ殑濞佽儊锛屽寘鎷湭鎺堟潈AP鍙婃敾鍑昏呰繘琛孌oS銆佹帰閽堟垨娓楅廤LAN銆傜涓夋柟WIPS锛堝 AirMagnet, AirTight锛変娇鐢ㄧ壒鍒剁殑浼犳劅鍣ㄦ潵妫娴嬪苟鍝嶅簲鍒嗘暎鐨勭殑鎭舵剰瀹㈡埛绔敾鍑汇傚綋浠婏紝澶у鏁颁骇鍝侀兘鏈夋墍绐佺牬锛屼妇渚嬫潵璇达紝Motorola AirDefense灏卞彲浠ラ儴缃插湪涓撶敤鐨凪otorola AP褰撲腑銆俈AR鍙兘甯屾湜閫氳繃閮ㄧ讲鑻ュ共涓猈IPS鏉ユ弧瓒充笉鍚學LAN渚涘簲鍟嗗強澶氭牱鍖栫殑瀹㈡埛闇姹傘

浠庝紶缁熶笂鏉ヨ锛孷AR宸茬粡閿鍞繃绗笁鏂筗IPS鏈嶅姟鍣ㄥ簲鐢ㄧ▼搴忓拰浼犳劅鍣紝鎴栭泦鎴愮殑WIPS杞欢锛屽畨瑁呭湪WLAN鎺у埗鍣ㄦ垨绠$悊搴旂敤绋嬪簭涓傚熀浜庝簯鐨刉IPS鏈涓哄惛寮曚汉鐨勬槸璐拱涔嬪墠鐨勮瘯鐢ㄦ垚鏈緝浣庯紝鎴栬呰瀹冩槸涓绉嶆案涔呯殑瑙e喅鏂规锛氭妸WLAN鍒掑垎涓烘暟鐧句釜灏忓瀷WLAN鏉ョ洃娴(濡傦紝闆跺敭琛屼笟)銆

802.11n瀹夊叏濞佽儊鐨勮皟鏌ヤ笌璋冩暣

鏃犺WLAN鎺у埗鍣ㄦ槸鍚︽姤鍛婃棤绾垮畨鍏ㄤ簨浠讹紝涓涓泦鎴愮殑WIPS鎴栫涓夋柟WIPS锛岄兘浼氬湪鏃犵嚎渚ф娴嬫椂琚彂鐜帮紝WLAN杩愯惀鍟嗛渶瑕佸彇璇佸伐鍏凤紙forensic tools锛夊拰涓撻棬鐨勬妧鏈潵璇勪及浜嬩欢鐨勫奖鍝嶆按骞炽俉IPS鑳藉鎻愪緵瀹炴椂鐨刉i-Fi璁惧韪抗锛屽巻鍙插畾浣嶄互鍙婅缁嗙殑浜嬩欢鏃ュ織璇存槑銆備笓鐢ㄧ殑WIPS浼犳劅鍣ㄩ氬父鍙互琚鍦ㄦ暟鎹寘鎹曡幏妯″紡涓潵璁板綍杩涜涓殑鏀诲嚮銆

鍦ㄦ煇浜涜皟鏌ヤ腑锛岀Щ鍔╓i-Fi 鏁版嵁鍖呮崟鑾峰拰鍒嗘瀽宸ュ叿閮芥槸涓嶅彲鎴栫己鐨勩備竴浜涘鎴烽兘姣旇緝涔愪簬浣跨敤鍏嶈垂鐨勶紝鎴栧紑婧愬伐鍏凤紝濡俉ireShark 鎴朅irodump-NG銆傝屽叾浠栧鎴峰垯鍊惧悜浜庤喘涔板晢鐢╓i-Fi娴侀噺鍒嗘瀽宸ュ叿锛岃繖鏍峰湪澶у瀷WLAN涓彲浠ヨ妭鐪佷笉灏戞椂闂达紝鍚屾椂杩樿兘寰楀埌鏇翠笓涓氱殑娲炲療鍔涖俈AR閫氬父浼氶攢鍞竴浜涘垎鏋愬伐鍏凤紝濡侫irMagnet Analyzer 銆乄ildPackets OmniPeek锛岀敤浜嶹LAN鏁呴殰鎺掗櫎鍜岃瘖鏂紝杩欎簺宸ュ叿鍚屾牱鍙互琚畨鍏ㄤ汉鍛樻墍鐢ㄣ傚晢涓氭満閬囧悓鏍蜂负閿鍞柊鍨嬫槗鐢ㄧ殑Wi-Fi鍒嗘瀽浠暈寮浜嗗ぇ闂紝鍥犱负杩欐牱鐨勯攢鍞柟寮忔洿鍔犵畝鍗曪紝涔熸洿鑳藉杩庡悎绗竴绾跨殑鍛樺伐浣跨敤銆

鏈鍚庯紝VAR鍜岀郴缁熼泦鎴愬晢鍙兘闇瑕佽冭檻鎻愪緵鏇翠富鍔ㄧ殑鏃犵嚎瀹夊叏鏈嶅姟鍜屼骇鍝併備緥濡傦紝VAR鍙互鎸夌収Motorola AirDefense Wireless Vulnerability Assessment 妯″潡鐨勬柟寮忔潵閿鍞甒i-Fi vulnerability assessment offerings 锛堟寜鐓ц蒋浠舵ā鍧楁垨浜戞湇鍔℃潵閿鍞級銆傜郴缁熼泦鎴愬晢涔熷彲浠ュ湪浣跨敤鏈夋晥缁撹鏃讹紝缁撳悎鍏嶈垂宸ュ叿濡 BackTrack4锛屽鎵惧叾鑷韩鐨刉i-Fi娣卞叆娴嬭瘯鏈嶅姟鏂瑰紡銆

鏃犵嚎瀹夊叏鏈嶅姟鈥斺旀案鏃犳澧

铏界劧802.11n 寮曞彂浜哤LAN鍗囩骇鍜屾墿瀹癸紝骞跺笇鏈涜兘澶熷埡婵鏃犵嚎瀹夊叏甯傚満锛屼絾鍏剁粨鏋滃苟涓嶆槸鐭湡鍐呭氨鑳藉鐪嬪埌鐨勩傚畨鍏ㄦч棶棰樺瀹㈡埛鏉ヨ骞堕潪涓娆℃у氨鑳芥案涔呰В鍐崇殑銆傚畠鏄竴涓惊搴忔笎杩涚殑杩囩▼锛屽畠闇瑕佸鏂板▉鑳佸拰婕忔礊淇濇寔鎸佷箙鐨勮鎴掋傝繖鏄疺AR鍜岀郴缁熼泦鎴愬晢涓嶆柇鐨勬敹鍏ユ潵婧愩
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