Tấn công trong mạng không dây nội bộ, vấn đề và các giải pháp phòng chống
Bạn đang xem bản rút gọn của tài liệu. Xem và tải ngay bản đầy đủ của tài liệu tại đây (2.21 MB, 62 trang )
!!"#$%%&'(')*+',!
-./0.123'4,56%.7!6'8!
9:.;*#.<=>.?@A54!68
B?5)C6<!DE6-F%)1#G;
H
6
%,9I,)18!6G;(.J
KL3'.M5&!*I'N-G4G
.MNEOP6#(''@L.Q'.3N3'.M,.3@*.*
-&#('667.G2!M1J8
R;
'
'.
@I
@'
H
;S'
G
T
H
'8
@
H
#
H
G
U
.
S'
H
.
'!
G
H
H
!
H
H
@
H
'
;S'-
H
G
;
8
@
H
T
'
U
G
H
H
@
H
.
U
.G;
H
G
'
!8'UG;
+'
H
@
H
G
@
H
.
I
VG
U
H
'S'
'
H
8
G
U
'
H
I
T
I
H
T
'
#;
GW)XYW
G;
.
H
H
;S'
G;
G
S')G
H
@IV8
H
)
'
H
;
S'!
#
8888W
H
#;
'
H
!.G;
H
@
T
'#
-.
!
.
U#
'T
I
H
T
.;
G
U
G;
S'
H
-G
H
!
@
G
U
'
H
I
H
'
H
8
ZT
G
U
'
H
I#
G;
'
U
#
'
H
H
8
'.
H
-
S'
H
H
.
8RT
H
H
!
H
H
@
H
'
;S'
G
T
H
!
@
H
.
@
T
'
U
.G;
H
+#
G
H
)
8
G
'
'
'
H
8B
;S'
G
.
@
S'
T
!
8RT
H
S'
.
H
H
.
[
H
!-
H
@
H
.
\
SV:PhaHG
]
^_`aabW Page `
!"#
!
$
$
$
#
$
"#
$
"#
!"%
&
&$
!$
'
!
$
(!$
%
)
*
(
%
+$
*
,!(!
!-.
c8`8d))!e)-f88888888888888888888888888888888888888888888888888888888888888888888888888888888888`a
c8c8!888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888`c
c8g8he,@i6jf8888888888888888888888888888888888888888888888888888888888888888888`g
c8k8Wlll--#!88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888`k
c8b8mnopqBBq__dn8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888`r
c8r8sl't#-!e,'Q'+6C#Jf888888888888888888888888888888888`u
c8v8,-C)C*N)O#5N#w8888888888888888888888888888888888888888888888888`u
c8x8,L!M1es)))X#-!f8888888888888888888888888888888888888888888888888888ca
!/"
'
!!
*
0
0$
&1))
!
*
0
0
2
*
(!-
`8`8s'y88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888ck
B6B#!-O<@FI>.F:QzE{e7-%G.F
:WBf8q_-'P ;)0-&#('E6B#!-.G2|6
d@(!O#G'#G'#G2?2888888888888888888888888888888888888888888888888888888888ck
`8c8q888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888ck
SV:PhaHG
]
^_`aabW Page c
9}2qdgsq_'~_e)_'f)=-%/
O.<6G4'N 8B6!OqdO<J l'))))
@)88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888ck
`8g8'8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888ck
`8k8t•##88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888ck
`8b8Rd8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888cb
'
3
c8`8R!0JR88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888cv
!
*
0
02
*
,
*
2
"/
g8`8Rd8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888gc
g8c8xac8`+qd888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888gg
g8g8deltd-))f88888888888888888888888888888888888888888888888888888888888888888888888888888888888gb
g8k8dc88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888gr
g8b8{et#f88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888gv
g8r8Z
'
H
88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888gu
!"
($
*
+!
*
0
04+$
5
*
!678!5
`8`o
#G
H
H
8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888k`
`8c_C@*N70 88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888kc
`8g€-%msp_8888888888888888888888888888888888888888888888888888888888888888888888888888888888888kg
`8kW•‚]ƒ]„o888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888kb
5&(
9
c8`YG5`Bs]Bd88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888kr
c8cYG5cBq)B8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888kv
c8gYG5gBm-')8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888ku
c8kYG5kB'<)W-888888888888888888888888888888888888888888888888888888888888888888888888888888ba
c8bYG5bB,'Ps]Bd88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888b`
c8rYG5rB,'Pm-')8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888bk
c8vYG5vJ')),S'3m))'))'8888888888888888888br
c8xYG5xJm))d#888888888888888888888888888888888888888888888888888888888888888888888888888888br
c8uYG5uB,'Pd!@6.F:6msp_888888888888888888888888888888888888888888888bu
c8`aYG5`aB,'P#))B#88888888888888888888888888888888888888888888888888888888888888888888888888888bu
!3"
+$
SV:PhaHG
]
^_`aabW Page g
0 ))d <'N
''y
))B#
…6C,|!<6
:) --q_-- ''~/OM
2)); Y)__) WPJ;)0
0 B##l-)!
'#
oz+6C'Q'@L
:) sq_-- ''~/O-&#('
) s)@')) ](11
))) s)S')-
)'
*"CM
:0 q+)@#'
d#
oz+6C0
:)); q+--__) WPJ0
< t-#B')
B))
†@'3@
]Z‡
<)) tS'l)-
)'
*"*Q
2)); --Y)__) WPJ. #Nˆ
{#J-
) ')s_) ](16(+N
::: )'Xq##-
q#)q)
R(!‰'N.(.(=E
W‰
0)=> d#_' N26'~',
e-')l-X-)f(
!<+6C/O6
-&#('-J!Q
•!ed
) -')#)X- YIQ-(
SV:PhaHG
]
^_`aabW Page k
-# !{{
)0 )- ',-F%
#•! WJ%@
W-'))B# 3'!<'NG4
W#•! WJ.F
W))! dG;z!<7
ŠE.(
? #@# BG)=-%
) •!))) W6E'NJ
) )''X_--
-#
R(z'''~
(S'1
< n#XS'-)
'##+
*"C
0 d)#B' W676
0 d)#s#))) W62#w6-?!‰'N
)1
0:0 d-q+)@#
'd#
oz+6C0
.G2@*(
000 dlldd# oz#!M.<.<
0)+ d)-Z) ZO)‹
() m's#
p)_
s
H
'
H
'
H
@I
.
H
H
+
H
G
+
(< m-XS' Q)1'M
)0 _#d# oz.;'M
)) _)-X Y N-J-F%
+0 #Z
d#
ozŠ!O4
0 p)sd# z'3*
R'##•! WJ*
0 R'#d•! WJ*
-:0 -qS'#d Y*NG;.G;J.
-
-4< #))t-# ](1J!-)=
-%)O'M
- #))#•! WJ%@ !-
-0?-0 lXd-)) Y*('NlX
SV:PhaHG
]
^_`aabW Page b
@AB'
H
H
8888888888888888888888888888888888888888888888888888888888888888888888888888888888x
@ABWT
@
H
.
H
ld))!)888888888888888888888888888888888888888888888888888888`a
@ABŒ'
T
#
))•-qd
@
H
.
H
8888888888888888888888888888888888888888``
@AB/WT
,E. l!)8888888888888888888888888888888888888888888888888888`c
@AB,!<'•|lh!)8888888888888888888888888888888888888888888888`k
@ABb,@i6'KlWlll--#!)88888888888888888888888888888888`k
@ABW
888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888`b
@ABC
t!))d888888888888888888888888888888888888888888888888888888888888888888888888888888888`v
@AB#WP,['Q'+6C#J\888888888888888888888888888888888888888888888888888888888888`x
@AB%WP,L!M1888888888888888888888888888888888888888888888888888888888888888888888888888888`u
@AB/Y
H
H
!-8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888ca
@AB/WG
.
H
8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888c`
@AB//Œ'
T
U
U
8888888888888888888888888888888888888888888888888888888888888888888888888888888888888cc
@AB/]
H
.
H
'
H
U
-
8888888888888888888888888888888888888888888888888888888888888888888888888888888888888cg
@AB/3]
H
.
H
'
H
U
!
88888888888888888888888888888888888888888888888888888888888888888888888888888888888888ck
@AB/WPR!;
H
R888888888888888888888888888888888888888888888888888888888888888888888888888888888888888cb
@AB/Ct.
U
.G;
H
U
@;
qd888888888888888888888888888888888888888888888888888888888888888888888888888888cr
@AB/#
T
U
U
qd888888888888888888888888888888888888888888888888888888888888888888888888888cv
SV:PhaHG
]
^_`aabW Page r
@AB/%W
H
.
H
'
BR888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888cx
@AB/.Rd88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888ga
@AB/WPJ. +6Cxac8`+888888888888888888888888888888888888888888888888888888888888888888g`
@AB/Œ'
T
.
+
G
H
'
xac8`+888888888888888888888888888888888888888888888888888gc
@AB//
T
+
G
H
WB8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888gb
@AB/
H
G
88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888gb
@AB/3Y
G
8888888888888888888888888888888888888888888888888888888888888888888888888888888gv
@ABWP+6C&#))B#)msp__8888888888888888888888888888888888gu
@AB]J. Emsp__qmRqm8888888888888888888888888888888888888888888888888888888888888888888888kc
@AB/#))B#)dmsp__88888888888888888888888888888888888888888888888888888888888kg
@ABB.>s]Bd8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888kb
@AB3q)B8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888kv
@ABm)-X'###8888888888888888888888888888888888888888888888888888888888888888888888888888888ku
@ABCZMS'*,'Ps]Bd8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888bc
@AB#m)_s888888888888888888888888888888888888888888888888888888888888888888888bc
@AB%Z@6-')#888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888bg
@AB.sp))-B')V88888888888888888888888888888888888888888888888888888888bk
@AB•m))d#88888888888888888888888888888888888888888888888888888888888888888888888888888888bk
@AB))-#[#))\888888888888888888888888888888888888888888888888888888888888888888888888888888888bb
@AB/p)o'))888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888bb
@ABqd8888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888bb
@AB3ZMS'*Jm))d#88888888888888888888888888888888888888888888888888888888888888888888br
@ABB,'P))d88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888bv
@ABC#))•!Bd)\8888888888888888888888888888888888888888888888888888888bx
SV:PhaHG
]
^_`aabW Page v
!"
!
$
$
$
$
"
“Tâ
́
n công trong ma
̣
ng không dây nô
̣
i bô
̣
, vâ
́
n đê
̀
va
̀
ca
́
c gia
̉
i pha
́
p pho
̀
ng chô
́
ng ”
$
"
<!M15 J&''MQ*'N.G4'3@i-
6*!M1 dB "J8R5J!-:QO6E
?)O@EEJ!-83'!<JO-#.;*
.G4'3@i6G4.G2.6ˆQ6!)=
-%O<#O-)@#@i6z-%S'*#w8B6J!-e
'Mf)=-%)O'M+'S'N#('E6ˆGN)C@E#
!5J0@ ˆ8_O'MO<+',(.G41D6
J6D6JGN.OO<'N4M@F728s.O
J!-E 9O<@F'ND@ˆE{8
SV:PhaHG
]
^_`aabW Page x
@AB'N6|J!-
Bảo mật:
l WG4!M1!-#!!7!*I@F,EG4
-?#,8
l B
'
G
H
G;
S'
H
!
#G;
G;
.G;
H
l Z
I@
H
H
#
!
!
G;
S'
H
!
G
)'
H
;
.
@
H
.G;
H
!"
&
&$
!$
'
!
$
(!
$
)
*
(
B(#Q.Q'+',('1I`uua!&)*+',5
('&)*~J. @IQuaaWy8&*6e!.G2
1,&6)*+',f',1. '3-&#('`W@),;3')5
1. `aW@)EQ'M6J)=-%6(48
I`uuc&)*+',@L.Q'@6&)*~)=-%@IQc8koy8
W>-Q'&)*~./O1. '3-&#(';GKŽ#&
*6E})*+',!.G2@1 /8_CQM(J
. 1,&6M@F0&-/Q)1!6'-Ž.M )1"z@L.Q'
6<&'~J!-'8
SV:PhaHG
]
^_`aabW Page u
I`uuv)'Xq##-q#)q)eqqqf./'~)C.4E
'~xac8``9.G2@M5{te#))t-#f6J8
B'~xac8``}2@G;6'37('.OO@$G;6'3
7(''M0Q)1c8koy8
I`uuuqqqS')C@")''~xac8``#6'~xac8``xac8``@
e.F•&G;6'37('f8R&M@F-C'~
xac8``@./O0(!-G2 8B6M@Fxac8``@
'360Q)1c8koy',1. '3-&#('O<#5``W@)8qqq
xac8``@.G2Ji',&.>.<37('-%#G2
e''f@*N.<))65JO-8
Icaagqqq@1 )C*M#'~xac8``O<'3N
0*-/Qc8koyboyO<1. '3-&#('#.MbkW@)8
.O&)*~6-%xac8``9O<G;7G256M@F
'~xac8``@8]('~xac8``./.J.M1. `axW@)lgaaW@)8
+$
*
,!(!
!-
]!O<,J@i66)'
`8 D
A>EAFGH
IE
AF4FB=JKE
LM0N;;HO=JJN>PBNQ:NO=;RKSTTHAFU
c8 D
A>EAF>BV
*
IE
AF>JHO=JJN>PMPWJAXH1JBYLRZO[>\VB@ABL]AFU
g8 D
A>EAFPH^
*
V>B=
A=
TM_NLLHAFJJN>PU
k8 D
A>EAFPH^
*
VJBVBV
JMNA4HA4JB=4LHRR`=JJN>PU
b8 D
A>EAFFHN
*
LN
SM(!::))0U
=4NVJB=AJH>NJHSA<`SSRJJN>PMJ\A>EAFQ^V>aVbc>JBd>`]HU
C \A>EAFRdNJK^A;d>eLABfA;gAFLNAF`hTOfJ`i
x8 \A>EAFAFjJPWJAXHes#X_)!f
Các phương pháp tấn công trên có thể được phối hợp với nhau theo nhiều cách khác'
0N;;HO=JJN>PM=NO=;RKSTTHAFU
,@F. e))f#|e)-fO#j# G;6,
.;*,GŽ,('S'*8d))!!.<#J -,'M
z•./O)C(-(E!JP!!N!M15d.<
#L6O'3.JJ!-8)XX6z-%‘
7O<.G2)=-%.<'N3J!-0!*6+@i6
)=-%.FG58dG;6|!&!*65J
!.<#J-,'M!Ž#L'N.G2&S'w68
SV:PhaHG
]
^_`aabW Page `a
k
ABWT
@
H
.
H
ld))!)
BO3'z-%O!*I'N.G2))•-D&-F:]d#)
))#(td#8&!<'!M1.3''3))•--J
#+e!/Of83'z-%O<@L.G2))•-)eN/./.G2
@If'3.JJ!-&#)#K#.IN8Y,!‡
'3.JJ!-!<'.3',-‘@F,@0
!8]/++|&6. M'G!O<.INJ@i
E G4-?.O&(JJ8]!#EJG
&#.G2#J:.MG4-?!./.IN83'O<
#.O,(8
SV:PhaHG
]
^_`aabW Page ``
k
ABŒ'
T
#
))•-qd
@
H
.
H
W !O<0.'.O@/.N'+-?&%.<. NJ
E@J8B6%O<# !)XX )1Q3!‘
7.<O<!.G2qd!.INJ8
>JHO=JJN>P
]!O<,E. ef.<C( )16%J8W '
,E. O<.G2)=-%.<'N)#,.G2&-&#('O
6F)=-%.G4!M1E-(.<C(&%.76
JN7#.",'PEJQJ8Yi6!M15J!
-S'd!O<+N)';J>O<.",'P
EJ8R7-% !O<)=.".<WB--))E!-)6
|EWBX#d('O7IWBX#K(. N
)'-‘-;8-N7!@M.G2." 4-
M'G!!<G4+'8
SV:PhaHG
]
^_`aabW Page `c
k
AB/WT
,E. l!)
W )17-%.<PE!O<@$6_6.1EJ
'1. N;)0-&#('E@J8W )e!‹66G6fO
<0 #K3'#.MJE.P-(S'!M1!
-8_'!O.G2.F:dDs]Bd)!O<0*@zG)=
-%!M1E@J@J!3@M8Z<',O<#_dE
@JL!M1#E@JP./#J-%03'#>-?!*#}E@J8
1EJO<'1O.G2-)6!6E@J?5&
#(N7#@*#G;.<OzJ1;#,!6
E@J8&!<',+*G4+'-!3@M8
W !!./O.G2!M1!-JE@JLO<'N
))=-%!M1'N.M#-)!G4-?8B?5
)1%.;*!O<-‘-'N.G2&S'{*
JG4-?N7(JJ@i6,'P)8sˆP)
@i6S'|"J#(p.<)j!))•-)'.O.I
N)@i'./!.G2#&.3'!O<#.15J
E@J
/_NLLHAFMJ\A>EAFGlAF>c>BFDQAFBmAU
h# !‰'N.G2)=-%:.;*.<#•e)'-•fJ!
-E@J8G;CG&!‹6J)=-%,s_ •@)#
j).OPJ9O<@F)'-•@i6j7('mt8
&7('jO<#1wwO<#J@•.G2!#J@•
SV:PhaHG
]
^_`aabW Page `g
.G28Z !E. ,’!O<)=-% M@F
.>@(M@F#@ 67('mt)',)•8
k
AB,!<'•|lh!)
<#J@•!<',P'Q'.Q'#*+6.F.G2'$7('mt8
R(O<#@i6)=-% _'#ye67"f8BO3'
#J_'#yFG4G@J-?#JQ-?()=
-%8W 6!6#-?6z-%_'#yQ3!•6)*
~#8
Z'$’#!<-'<.G2! 䀠 JG6'3
6(126!6P-++|)=-%-/Q)1!6
J8R7-%M'-F'6(M!M.>J
G4 #5zJPQ*++|!‰8M'G'$‘'mt* ;
c8koyG@ .#ˆ)OVP-)=-%&M@F'~xac8``
J. @IQboypP)=-%&M@Fxac8``@“J.
@IQc8koy)j-‘@F‘'8
h-w+',(G4+'-3'M@F!6')j'@IQ
c8k_W5J8h 6E. G4!"@M#L#w-#
@0P.<C(.G2’P,1!|6EM@F,L3!MS'*.J
.G2:#J4)'-•J4L8
NA4HA4JB=4LHRR`=JJN>P
,!<'Wlll--##G42.O!)=-% d.<
.6L6--. @i607('mtJ;d26.M6-.O8
SV:PhaHG
]
^_`aabW Page `k
B6--. N,Od67('mt1;)j!M1.Md*J
'3-&#('O<#&-&#('J*.Md*J!OS'3+=
#w8
AB3,@i6'KlWlll--#!)
<##!M1#J.Md*JP)',6Ed*J*;
3')5d26?E)OEO8R(!M1#J5d*J.G2
+G# QEG4-?)j!3@M.G28R(.G'$
‘'!e##l@-Xl”JG@#'f?E)OEd
26)j@' #*8
]!'1,!<'Wlll--#G5*@M.G26F__s
#6#.)=-%e6F,-‘-O.G2f8_'.O!*@M.G26
Fqd!M'JO)=-%qd8ZM1')e5J%O-fDd*
J.G2.3'!<S' M@F#GdB-!'Y-83'
!,Wlll--#.G2C(:5 #cdBWB-8dQ
3dJ6#;dB-.G2)=-%G# d dB-zc
.G2)=-%.<!M1#.Md26Q.O8,'P#7#
lll--#eG40&fJ. &#d268D.O!O<
#,.G2&6F@i6)=-%6)XX6#8
SV:PhaHG
]
^_`aabW Page `b
R)'' ,
k
ABW
<1M'!<',#G4-?!<N@M.G28RPM)1
#G2!O<'.G2:%' 4!O<-'P
J6G5!@F6(8Y*NN#wed)#)'f#G;61
,.<1#J!<',8
3 (!::))0
1.Định nghĩa:
))d*J.G2-?.<*&))d.G2J 6P
1w#*G0.M(1J(O8Nó được dùng để chỉ các thiết bị hoạt
động không dây trái phép mà không quan tâm đến mục đích sử dụng của chúng.
2.Phân loại:
a)Access Point được cấu hình không hoàn chỉnh
W ))dO<@,40`M@F*J-))O(,'P8_C
."Service Set Identifier(SSIDfM#N+6CM#N/OV.3'
{,#K)j!<zC6!M1M'@F,'P)8
SV:PhaHG
]
^_`aabW Page `r
Ví dụ: J6+6C0e-'f6G4-?!-0
J6`eG+6CG!M1fO<=6'Q'+6C.M ))
d.G2+6C)j'<)6ce.G2+6CGG!M
1f8M'`))d!+6N)C2#(E 6!6-#},'P
!‹,O<= )1#G2#5'Q'+6C#@*'Q'!M1E
66!60))d#))dD1'NE6G4-?
!6@$*G4-?.G2|'N8
b)Access Point giả mạo từ các mạng WLAN lân cận
B66!6'~xac8``C. {))dO)OJ,O6
(.G2.<!M18
Ví dụ:-•)…dC. !M1.M!M11,O<+'S'O8RPN&
G4-?.G2+6CE "zO<!M1.M6))dE6"z
!6#N8W>-?6))d#N!1w'K!M1D6G4-?
&!M1.OP.<# &-&#('J*8
c)Access Point giả mạo do kẻ tấn công tạo ra
o*Jd#!<', “man in the middle” ".<8#!<',>
.z0& #G'#G2'3&cK8Z<',,JP>O<
,*#G'#G2.S'J8
m,!O!I.<J ' ,[--#\JO-@0P!<',
'Q''NC)C.M.G4'38J!-P#J,-‘@F
,!<'8>Q*J d'K3')C#C{;d7
180FHeA[Q>gJBnIop>JBHWJ`fTGlAF>c>B;NS>BqTJ\J>e>c>>\VB@AB>rN0
>BsABJBXAFIg`["))1ItN>BuOO8YG5M##JC(
!M15d*8
l B6z,#.2'4-?C!M18
l B6z# ' ,D1-F%s_d71-
N'4-?)j*!M1#J5d*8
Jxac8``)C#C{d.G2C(@0G4. E7('N83'-'
,>*C(#LLidEPOG4. 7('J;*8
<O.G2.3'.O>*đặt AP của mình gần người bị lừa hơn là AP chính thống hoặc
sử dụng kỹ thuật anten định hướng._'!J!M15d*JŽJ
. G@PG4-NM'J!M1.M d71!6P-&#('
EJ.3'.S'd*8>)j)=-%6(7.<#JN!~'EJ
!."5@_8GN>)jO.G2,*&P'1.<
.INJ718Z<',$J#-xac8``!'Q'
zCcG5&dK8d6S'*@6J83',-‘@F>
-N>O<#,.G2,*6KQ8B6K
J)=-%qd.<zCK5dGqd9O&#}"O<
!68W >O< )=-%@ 7/6.< N
SV:PhaHG
]
^_`aabW Page `v
!~'EG4-?
d)Access Point giả mạo được thiết lập bởi chính nhân viên của công ty
RP)C(#2EJ!-một số nhân viên của công ty đã tự trang bị Access Point và
kết nối chúng vào mạng có dây của công ty.s!<'•L&3@*N
J!-{PJ #}•#53@*N8&G4#J
!@O<!M1.M))d!.G2+6C.<.6L@I
.6LJ*E)C-%(1JE,
G4!6V
e) Fake Access Point
Z‹,)=-%%O!*I=6O@5.F:N#weWBf*
J__s*.<J)1))d*#N83'#+6 ,*6Q
3.3'!<-J!-EG4-?8
k
ABC"
t!))d
SV:PhaHG
]
^_`aabW Page `x
=4NVJB=AJH>NJHSA<`SSRJJN>PMJ\A>EAFQ^V>aVbc>JBd>`]HU
@AB#WP,['Q'+6C#J\
lZ‹,+6.F%',#6G4-?J•#))6!M1
E{e))d.M6!M1EOf8
lB•>c>vKNL=Q^V>aVbc>JBd>`]HJ@i6*J.F:WB
'$.7#Q#G2E))d6G4-?8
lG4-?•#))!N.G2X'Q'+6C#JP•iK-))
d=.M8
l_'!L.G2 G4-?!•-F%!-!‹,M%C(
G;C.156G4-?ˆ#J8
lG4G4-?)j!M1#J.<%$-F%G!‹,./
OM%=6O'Q'+6C#JG4-?8
C\A>EAFRdNJK^A;d>eLABfA;gAFLNAF`hTOfJ`i
O<<'#Z‹,#2-%z1.%. B_W“Bz#
O)j#,*D;-?•i#KJ9O`67.'3
83'#667!6#'#'0J64.2!‹,,
'3-&#('+–—-Ž.MPJjJ8
Q)1# G2.<@*NJ!-8Wz. '<."%
' -(E#5N#w8BO )1S'M.F)CF'.CEJ#
AYAF`opAFLcQTBcJ1IwAB]Q>rNLcQJBV1JaA;X(<1GYAFJBEAFO[;dItABBohAF
>rNNAJ=Axac8``)=-%'N6.'N*N)OeB_Wf.<
6J8B_W# QE#5WB8B_W.G2)=-%.<LL
i)j!OJ-&#('.G4'38Z<',!)=-%J
.<J#}JGO)j#2-%7'~.O8BO3'6.<!6
z*N)ON#w8B6.;*##6KJ.3'G0
SV:PhaHG
]
^_`aabW Page `u
iO K.'3J4.<(J8B6-‘,.J.G2.3'#J
K*J.<'3 6#%8W 6!6#)=-%@ J7('mt8
W 6,;##-J'<M. !<0.OO
'3.#M Ž'!<8,*6KJE K*#,J
5)O!O K.'3P)j!OK.G2'38
#\A>EAFAFjJPWJAXH MH;N;;S>HNJHSAv`SSRNJJN>PU
@AB%WP,L!M1
lZ‹,+6.F%'e•#))#)f1#!M&d56#)
lZ‹,=RH;N;;S>HNJHSAvKNL=@i6*J_'s)WB.M
d6#G;z
lB#)jN6X•iXE!M1.MDd8$4!‹,
90-)))X.Md8
l_'!./L!M1E #!‹,M%C(G;C56#
ˆ#J#6#C. L!M15d8
lZ6#)@FL!M1)jC(!M1#J5d#Nz8Z‹,M
%0-)))X.Md#
SV:PhaHG
]
^_`aabW Page ca
HT;"BO<)j,-‘Q#Ž&c!3',"s)))X#-!
sl't#-!8
Giống nhau :
R3Pz,O<iK1'PO1G .J@6cˆ
D,>>=;;0SHAJD,B#8RS'{;MK˜*6˜#
%8
Khác nhau :
™sl't#-!'Q'*d#0#JX+6C–—+6C
X#-
™s)))X#-!0-)))X#d#G0i!M
1&K./@FL8
SV:PhaHG
]
^_`aabW Page c`
!/"
'
!!
*
0
0$
&1))
!
*
0
0
2
*
(!-
SV:PhaHG
]
^_`aabW Page cc
<',z@*N1<'JPQQ)'
l B6z.<+6.FOS'3)=-%l'Q'.G2•/
@i;M+6Ce'f8
l W G;z.<',7G6-&#('!-^'Q'
.G2•/@i 'N6/Oef8
SV:PhaHG
]
^_`aabW Page cg
s'y
k
AB/"WG
.
H
Device Authorization "
B6B#!-có thể bị ngăn chặn theo địa chỉ phần cứng của họe7-%G.F:
WBf8q_-'P ;)0-&#('E6B#!-.G2|6
d@(!O#G'#G'#G2?28
Encryption "
9}2WEP, 3DES và chuẩn TLS(Transport Layer Sercurity) )=-%/O.<
6G4'N 8B6!OqdO<J per-user, per session
basic.
/VJB=AJH>NJHSA"
}2)CES'3#Ž'e@i(sử dụng 802.1x EAP-TLSf.<@*.*:O
6B#!-.G2ES'35.G2'NJ8q_)=-% msp_
)@)CES'3@i()=-%6z:)18B6z:)1O
<.J.G2DS'3zN@eBf.G2ND B@8Điều
này đã tăng tối đa sự bảo mật và giảm tối thiểu các thủ tục hành chính.
Firewall "
q_2,packet filteringport blocking firewall-C6'}d8R(,'PD
G5|6#J#G'#G2'.G2@#-)@#8
SV:PhaHG
]
^_`aabW Page ck
1.5. VPN :
q_@$ IPSec VPN server |6B#!-M#N6)))Rd
&LJ8
'
W/O#@M."-&#('.<:O6Q.G2+6N5O<*/.G2
O8Œ'6P/O#!M2#+5 !O.<JI@*NeB+f8
_C*/.G2@i6!M2B+5!O.<6J#J#+1GPgl
r8Œ'6P+L+M@16!O{#)CS'*#w!O8
gBNH`S]HLfJLx"
šWN/-ˆe))f
šWN/!1e@#!)f
B*#JN/J. @i6) '}!Oe!)fD 6
F!O@7N8B'}!O)'.O)j.G2 5-&#('e#+f.<)-&#('./.G2
SV:PhaHG
]
^_`aabW Page cb
