{"id":476850,"date":"2023-08-09T09:04:34","date_gmt":"2023-08-09T09:04:34","guid":{"rendered":""},"modified":"2023-09-05T11:13:35","modified_gmt":"2023-09-05T11:13:35","slug":"disassociation-attack","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/disassociation-attack\/","title":{"rendered":"T\u1ea5n c\u00f4ng ph\u00e2n ly"},"content":{"rendered":"<p>Trong th\u1ebf gi\u1edbi m\u1ea1ng v\u00e0 an ninh m\u1ea1ng, c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng c\u1ee7a cu\u1ed9c tr\u00f2 chuy\u1ec7n, \u0111\u1eb7c bi\u1ec7t l\u00e0 li\u00ean quan \u0111\u1ebfn an ninh m\u1ea1ng kh\u00f4ng d\u00e2y. B\u00e0i vi\u1ebft n\u00e0y nh\u1eb1m cung c\u1ea5p s\u1ef1 hi\u1ec3u bi\u1ebft to\u00e0n di\u1ec7n v\u1ec1 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly, bao g\u1ed3m ngu\u1ed3n g\u1ed1c, ho\u1ea1t \u0111\u1ed9ng, t\u00ednh n\u0103ng, lo\u1ea1i, c\u00e1ch s\u1eed d\u1ee5ng, v\u1ea5n \u0111\u1ec1, gi\u1ea3i ph\u00e1p, so s\u00e1nh, t\u00e1c \u0111\u1ed9ng trong t\u01b0\u01a1ng lai v\u00e0 m\u1ed1i quan h\u1ec7 c\u1ee7a ch\u00fang v\u1edbi m\u00e1y ch\u1ee7 proxy.<\/p>\n<h2>Ngu\u1ed3n g\u1ed1c v\u00e0 s\u1ef1 \u0111\u1ec1 c\u1eadp \u0111\u1ea7u ti\u00ean v\u1ec1 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly<\/h2>\n<p>Kh\u00e1i ni\u1ec7m t\u1ea5n c\u00f4ng ph\u00e2n ly b\u1eaft ngu\u1ed3n t\u1eeb s\u1ef1 ra \u0111\u1eddi c\u1ee7a m\u1ea1ng kh\u00f4ng d\u00e2y. V\u00e0o \u0111\u1ea7u nh\u1eefng n\u0103m 2000, khi c\u00f4ng ngh\u1ec7 Wi-Fi tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn h\u01a1n, vi\u1ec7c kh\u00e1m ph\u00e1 c\u00e1c l\u1ed7 h\u1ed5ng ti\u1ec1m \u1ea9n c\u1ee7a n\u00f3 c\u0169ng t\u0103ng theo. C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly l\u00e0 m\u1ed9t trong nh\u1eefng m\u1ed1i \u0111e d\u1ecda b\u1ea3o m\u1eadt \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh.<\/p>\n<p>Nh\u1eefng cu\u1ed9c t\u1ea5n c\u00f4ng n\u00e0y ban \u0111\u1ea7u \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp \u0111\u1ebfn trong c\u00e1c b\u00e0i b\u00e1o h\u1ecdc thu\u1eadt v\u00e0 c\u00f4ng nghi\u1ec7p \u0111\u1ec1 c\u1eadp \u0111\u1ebfn v\u1ea5n \u0111\u1ec1 b\u1ea3o m\u1eadt Wi-Fi. M\u1ed9t \u0111\u1ec1 c\u1eadp s\u1edbm \u0111\u00e1ng ch\u00fa \u00fd l\u00e0 trong b\u00e0i b\u00e1o n\u0103m 2003 \u201cNh\u1eefng \u0111i\u1ec3m y\u1ebfu trong thu\u1eadt to\u00e1n l\u1eadp k\u1ebf ho\u1ea1ch ch\u00ednh c\u1ee7a RC4\u201d c\u1ee7a Scott Fluhrer, Itsik Mantin v\u00e0 Adi Shamir. C\u00f4ng tr\u00ecnh n\u00e0y tr\u00ecnh b\u00e0y chi ti\u1ebft m\u1ed9t s\u1ed1 m\u1ed1i \u0111e d\u1ecda ti\u1ec1m \u1ea9n \u0111\u1ed1i v\u1edbi m\u1ea1ng kh\u00f4ng d\u00e2y, bao g\u1ed3m c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly v\u00e0 \u0111\u1eb7t n\u1ec1n t\u1ea3ng cho c\u00e1c chi\u1ebfn l\u01b0\u1ee3c nghi\u00ean c\u1ee9u v\u00e0 gi\u1ea3m thi\u1ec3u trong t\u01b0\u01a1ng lai trong l\u0129nh v\u1ef1c n\u00e0y.<\/p>\n<h2>Ph\u00e2n t\u00edch c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly: C\u00e1i nh\u00ecn c\u1eadn c\u1ea3nh h\u01a1n<\/h2>\n<p>T\u1ea5n c\u00f4ng ph\u00e2n ly l\u00e0 m\u1ed9t lo\u1ea1i t\u1ea5n c\u00f4ng T\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 (DoS) \u0111\u1eb7c bi\u1ec7t nh\u1eafm m\u1ee5c ti\u00eau v\u00e0o c\u00e1c m\u1ea1ng kh\u00f4ng d\u00e2y, ch\u1eb3ng h\u1ea1n nh\u01b0 Wi-Fi. M\u1ee5c ti\u00eau ch\u00ednh c\u1ee7a n\u00f3 l\u00e0 l\u00e0m gi\u00e1n \u0111o\u1ea1n k\u1ebft n\u1ed1i m\u1ea1ng gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng d\u00e2y v\u00e0 \u0111i\u1ec3m truy c\u1eadp (AP) c\u1ee7a ch\u00fang, t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 c\u1ee7a m\u1ea1ng \u0111\u1ed1i v\u1edbi c\u00e1c thi\u1ebft b\u1ecb \u0111\u00f3 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<p>Cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch g\u1eedi c\u00e1c khung ph\u00e2n t\u00e1ch trong m\u1ea1ng. C\u00e1c khung n\u00e0y l\u00e0 c\u00e1c khung qu\u1ea3n l\u00fd l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a ti\u00eau chu\u1ea9n Wi-Fi 802.11 v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 qu\u1ea3n l\u00fd c\u00e1c k\u1ebft n\u1ed1i v\u00e0 ng\u1eaft k\u1ebft n\u1ed1i gi\u1eefa thi\u1ebft b\u1ecb v\u00e0 \u0111i\u1ec3m truy c\u1eadp. Tuy nhi\u00ean, chu\u1ea9n 802.11 kh\u00f4ng y\u00eau c\u1ea7u c\u00e1c khung n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c ho\u1eb7c m\u00e3 h\u00f3a. Do \u0111\u00f3, k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 gi\u1ea3 m\u1ea1o c\u00e1c khung n\u00e0y, l\u1eeba thi\u1ebft b\u1ecb v\u00e0 AP ng\u1eaft k\u1ebft n\u1ed1i.<\/p>\n<h2>C\u1ea5u tr\u00fac c\u1ee7a c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly<\/h2>\n<p>C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch khai th\u00e1c c\u00e1c giao th\u1ee9c truy\u1ec1n th\u00f4ng trong m\u1ea1ng kh\u00f4ng d\u00e2y. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng ph\u00e2n t\u00edch c\u01a1 b\u1ea3n v\u1ec1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly:<\/p>\n<ol>\n<li>K\u1ebb t\u1ea5n c\u00f4ng x\u00e1c \u0111\u1ecbnh \u0111\u1ecba ch\u1ec9 MAC (Ki\u1ec3m so\u00e1t truy c\u1eadp ph\u01b0\u01a1ng ti\u1ec7n) c\u1ee7a thi\u1ebft b\u1ecb m\u1ee5c ti\u00eau v\u00e0 \u0111i\u1ec3m truy c\u1eadp.<\/li>\n<li>K\u1ebb t\u1ea5n c\u00f4ng t\u1ea1o ra m\u1ed9t khung ph\u00e2n ly. Khung n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 m\u00f4 ph\u1ecfng khung qu\u1ea3n l\u00fd h\u1ee3p ph\u00e1p v\u00e0 bao g\u1ed3m \u0111\u1ecba ch\u1ec9 MAC c\u1ee7a thi\u1ebft b\u1ecb \u0111\u00edch v\u00e0 AP.<\/li>\n<li>K\u1ebb t\u1ea5n c\u00f4ng g\u1eedi khung ph\u00e2n ly v\u00e0o m\u1ea1ng. V\u00ec c\u00e1c khung n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c ho\u1eb7c m\u00e3 h\u00f3a n\u00ean AP v\u00e0 thi\u1ebft b\u1ecb ch\u1ea5p nh\u1eadn khung l\u00e0 h\u1ee3p l\u1ec7 v\u00e0 ch\u1ea5m d\u1ee9t k\u1ebft n\u1ed1i c\u1ee7a ch\u00fang.<\/li>\n<li>Thi\u1ebft b\u1ecb v\u00e0 AP c\u1ed1 g\u1eafng thi\u1ebft l\u1eadp l\u1ea1i k\u1ebft n\u1ed1i c\u1ee7a ch\u00fang, nh\u01b0ng k\u1ebb t\u1ea5n c\u00f4ng v\u1eabn ti\u1ebfp t\u1ee5c g\u1eedi c\u00e1c khung ph\u00e2n t\u00e1ch, ng\u0103n ch\u1eb7n vi\u1ec7c k\u1ebft n\u1ed1i l\u1ea1i v\u00e0 g\u00e2y ra t\u00ecnh tr\u1ea1ng DoS m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/li>\n<\/ol>\n<h2>C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a t\u1ea5n c\u00f4ng ph\u00e2n ly<\/h2>\n<p>M\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m x\u00e1c \u0111\u1ecbnh c\u1ee7a c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>Nh\u1eafm m\u1ee5c ti\u00eau:<\/strong> C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly th\u01b0\u1eddng nh\u1eafm v\u00e0o c\u00e1c thi\u1ebft b\u1ecb ho\u1eb7c \u0111i\u1ec3m truy c\u1eadp c\u1ee5 th\u1ec3 trong m\u1ea1ng kh\u00f4ng d\u00e2y.<\/li>\n<li><strong>Gi\u1ea3 m\u1ea1o:<\/strong> Cu\u1ed9c t\u1ea5n c\u00f4ng li\u00ean quan \u0111\u1ebfn vi\u1ec7c m\u1ea1o danh l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng h\u1ee3p ph\u00e1p, l\u1eeba c\u00e1c thi\u1ebft b\u1ecb ng\u1eaft k\u1ebft n\u1ed1i kh\u1ecfi AP c\u1ee7a ch\u00fang.<\/li>\n<li><strong>Kh\u00f4ng \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c v\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a:<\/strong> V\u00ec c\u00e1c khung ph\u00e2n ly kh\u00f4ng b\u1eaft bu\u1ed9c ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c ho\u1eb7c m\u00e3 h\u00f3a n\u00ean k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 g\u1eedi ch\u00fang t\u01b0\u01a1ng \u0111\u1ed1i d\u1ec5 d\u00e0ng.<\/li>\n<li><strong>G\u00e2y r\u1ed1i:<\/strong> M\u1ee5c ti\u00eau ch\u00ednh c\u1ee7a cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly l\u00e0 l\u00e0m gi\u00e1n \u0111o\u1ea1n truy c\u1eadp m\u1ea1ng, g\u00e2y ra t\u00ecnh tr\u1ea1ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5.<\/li>\n<\/ul>\n<h2>C\u00e1c lo\u1ea1i t\u1ea5n c\u00f4ng ph\u00e2n ly<\/h2>\n<p>C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n th\u00e0nh hai lo\u1ea1i:<\/p>\n<ol>\n<li>\n<p><strong>T\u1ea5n c\u00f4ng ph\u00e2n ly c\u00f3 m\u1ee5c ti\u00eau:<\/strong> Trong lo\u1ea1i n\u00e0y, k\u1ebb t\u1ea5n c\u00f4ng nh\u1eafm m\u1ee5c ti\u00eau v\u00e0o m\u1ed9t thi\u1ebft b\u1ecb c\u1ee5 th\u1ec3 ho\u1eb7c m\u1ed9t b\u1ed9 thi\u1ebft b\u1ecb v\u00e0 g\u1eedi c\u00e1c khung ph\u00e2n t\u00e1ch gi\u1ea3 m\u1ea1o \u0111\u1ec3 ng\u1eaft k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb n\u00e0y kh\u1ecfi AP c\u1ee7a ch\u00fang.<\/p>\n<\/li>\n<li>\n<p><strong>T\u1ea5n c\u00f4ng ph\u00e2n ly ph\u00e1t s\u00f3ng:<\/strong> Trong ki\u1ec3u n\u00e0y, k\u1ebb t\u1ea5n c\u00f4ng ph\u00e1t c\u00e1c khung ph\u00e2n ly tr\u00ean to\u00e0n b\u1ed9 m\u1ea1ng. \u0110i\u1ec1u n\u00e0y khi\u1ebfn t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb trong ph\u1ea1m vi m\u1ea1ng b\u1ecb ng\u1eaft k\u1ebft n\u1ed1i kh\u1ecfi AP c\u1ee7a ch\u00fang, d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng DoS tr\u00ean to\u00e0n m\u1ea1ng.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00f4ng d\u1ee5ng, v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p c\u1ee7a c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly<\/h2>\n<p>C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi m\u1ee5c \u0111\u00edch x\u1ea5u, g\u00e2y gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5. Tuy nhi\u00ean, ch\u00fang c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho m\u1ee5c \u0111\u00edch th\u1eed nghi\u1ec7m th\u00e2m nh\u1eadp ho\u1eb7c t\u1ea5n c\u00f4ng c\u00f3 \u0111\u1ea1o \u0111\u1ee9c nh\u1eb1m x\u00e1c \u0111\u1ecbnh v\u00e0 kh\u1eafc ph\u1ee5c c\u00e1c l\u1ed7 h\u1ed5ng trong m\u1ea1ng kh\u00f4ng d\u00e2y.<\/p>\n<p>C\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn t\u1ea5n c\u00f4ng ph\u00e2n ly ch\u1ee7 y\u1ebfu li\u00ean quan \u0111\u1ebfn gi\u00e1n \u0111o\u1ea1n m\u1ea1ng, m\u1ea5t d\u1ecbch v\u1ee5 v\u00e0 kh\u1ea3 n\u0103ng m\u1ea5t ho\u1eb7c h\u1ecfng d\u1eef li\u1ec7u.<\/p>\n<p>C\u00e1c gi\u1ea3i ph\u00e1p bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>Chu\u1ea9n 802.11w:<\/strong> B\u1ea3n s\u1eeda \u0111\u1ed5i giao th\u1ee9c n\u00e0y cung c\u1ea5p s\u1ef1 b\u1ea3o v\u1ec7 cho c\u00e1c khung qu\u1ea3n l\u00fd, bao g\u1ed3m c\u1ea3 c\u00e1c khung ph\u00e2n ly.<\/li>\n<li><strong>L\u1ecdc \u0111\u1ecba ch\u1ec9 MAC:<\/strong> \u0110i\u1ec1u n\u00e0y gi\u00fap h\u1ea1n ch\u1ebf quy\u1ec1n truy c\u1eadp m\u1ea1ng ch\u1ec9 v\u00e0o c\u00e1c thi\u1ebft b\u1ecb \u0111\u00e3 bi\u1ebft, \u0111\u00e1ng tin c\u1eady, m\u1eb7c d\u00f9 n\u00f3 kh\u00f4ng cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 ho\u00e0n h\u1ea3o v\u00ec \u0111\u1ecba ch\u1ec9 MAC c\u00f3 th\u1ec3 b\u1ecb gi\u1ea3 m\u1ea1o.<\/li>\n<li><strong>H\u1ec7 th\u1ed1ng ng\u0103n ch\u1eb7n x\u00e2m nh\u1eadp kh\u00f4ng d\u00e2y (WIPS):<\/strong> C\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng nh\u01b0 v\u1eady trong th\u1eddi gian th\u1ef1c.<\/li>\n<\/ul>\n<h2>So s\u00e1nh v\u1edbi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u01b0\u01a1ng t\u1ef1<\/h2>\n<table>\n<thead>\n<tr>\n<th>Ki\u1ec3u t\u1ea5n c\u00f4ng<\/th>\n<th>\u0110\u1eb7c \u0111i\u1ec3m ch\u00ednh<\/th>\n<th>So s\u00e1nh v\u1edbi cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>T\u1ea5n c\u00f4ng x\u00e1c th\u1ef1c<\/td>\n<td>T\u01b0\u01a1ng t\u1ef1 nh\u01b0 t\u1ea5n c\u00f4ng ph\u00e2n ly, khai th\u00e1c chu\u1ea9n Wi-Fi 802.11, nh\u1eafm v\u00e0o c\u00e1c thi\u1ebft b\u1ecb c\u1ee5 th\u1ec3 ho\u1eb7c ph\u00e1t s\u00f3ng tr\u00ean to\u00e0n m\u1ea1ng<\/td>\n<td>R\u1ea5t gi\u1ed1ng v\u1edbi t\u1ea5n c\u00f4ng ph\u00e2n ly, v\u1edbi \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh l\u00e0 lo\u1ea1i khung qu\u1ea3n l\u00fd \u0111\u01b0\u1ee3c g\u1eedi (khung x\u00e1c th\u1ef1c v\u00e0 khung ph\u00e2n ly)<\/td>\n<\/tr>\n<tr>\n<td>T\u1ea5n c\u00f4ng g\u00e2y nhi\u1ec5u<\/td>\n<td>Nh\u1eb1m m\u1ee5c \u0111\u00edch l\u00e0m gi\u00e1n \u0111o\u1ea1n m\u1ea1ng b\u1eb1ng c\u00e1ch g\u00e2y nhi\u1ec5u t\u00edn hi\u1ec7u, c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u1ea1ng c\u00f3 d\u00e2y v\u00e0 kh\u00f4ng d\u00e2y<\/td>\n<td>Ph\u1ea1m vi r\u1ed9ng h\u01a1n so v\u1edbi t\u1ea5n c\u00f4ng ph\u00e2n ly, c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 gi\u00e1n \u0111o\u1ea1n tr\u00ean di\u1ec7n r\u1ed9ng h\u01a1n nh\u01b0ng \u0111\u00f2i h\u1ecfi nhi\u1ec1u t\u00e0i nguy\u00ean h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai<\/h2>\n<p>S\u1ef1 gia t\u0103ng c\u1ee7a c\u00e1c ti\u00eau chu\u1ea9n m\u00e3 h\u00f3a ti\u00ean ti\u1ebfn v\u00e0 m\u1ea1nh m\u1ebd, ch\u1eb3ng h\u1ea1n nh\u01b0 WPA3, c\u0169ng nh\u01b0 c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt m\u1ea1ng t\u1ed1t h\u01a1n s\u1ebd khi\u1ebfn vi\u1ec7c th\u1ef1c hi\u1ec7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n. C\u00e1c c\u00f4ng ngh\u1ec7 nh\u01b0 H\u1ecdc m\u00e1y v\u00e0 Tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c ki\u1ec3u l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp b\u1ea5t th\u01b0\u1eddng v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c m\u1ed1i \u0111e d\u1ecda ti\u1ec1m \u1ea9n trong th\u1eddi gian th\u1ef1c.<\/p>\n<h2>M\u00e1y ch\u1ee7 proxy v\u00e0 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n t\u00e1ch<\/h2>\n<p>C\u00e1c m\u00e1y ch\u1ee7 proxy ch\u1ee7 y\u1ebfu ho\u1ea1t \u0111\u1ed9ng trong l\u0129nh v\u1ef1c l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp internet v\u00e0 vai tr\u00f2 ch\u00ednh c\u1ee7a ch\u00fang kh\u00f4ng li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn vi\u1ec7c b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly v\u1ed1n t\u1eadp trung v\u00e0o c\u00e1c l\u1edbp v\u1eadt l\u00fd v\u00e0 li\u00ean k\u1ebft c\u1ee7a truy\u1ec1n th\u00f4ng m\u1ea1ng. Tuy nhi\u00ean, ch\u00fang \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong an ninh m\u1ea1ng t\u1ed5ng th\u1ec3.<\/p>\n<p>M\u00e1y ch\u1ee7 proxy an to\u00e0n c\u00f3 th\u1ec3 gi\u00fap che gi\u1ea5u \u0111\u1ecba ch\u1ec9 IP c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng, t\u1eeb \u0111\u00f3 b\u1ed5 sung th\u00eam m\u1ed9t l\u1edbp \u1ea9n danh v\u00e0 b\u1ea3o m\u1eadt. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 mang l\u1ea1i c\u00e1c l\u1ee3i \u00edch nh\u01b0 ki\u1ec3m so\u00e1t v\u00e0 gi\u00e1m s\u00e1t l\u01b0u l\u01b0\u1ee3ng, c\u00f3 th\u1ec3 gi\u00e1n ti\u1ebfp h\u1ed7 tr\u1ee3 x\u00e1c \u0111\u1ecbnh c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng ng\u1edd trong m\u1ea1ng.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly, h\u00e3y xem x\u00e9t c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.ieee802.org\/11\/\" target=\"_new\" rel=\"noopener nofollow\">Ti\u00eau chu\u1ea9n IEEE 802.11<\/a><\/li>\n<li><a href=\"https:\/\/link.springer.com\/chapter\/10.1007\/3-540-45537-X_1\" target=\"_new\" rel=\"noopener nofollow\">\u0110i\u1ec3m y\u1ebfu trong thu\u1eadt to\u00e1n l\u1eadp l\u1ecbch kh\u00f3a c\u1ee7a RC4<\/a><\/li>\n<li><a href=\"https:\/\/www.wi-fi.org\/discover-wi-fi\/security\" target=\"_new\" rel=\"noopener nofollow\">\u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt WPA3<\/a><\/li>\n<li><a href=\"https:\/\/resources.infosecinstitute.com\/topic\/802-11-attacks\/\" target=\"_new\" rel=\"noopener nofollow\">Hi\u1ec3u c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u00e2n ly<\/a><\/li>\n<\/ul>","protected":false},"featured_media":476851,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476850","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Disassociation Attack: An In-Depth Look<\/mark>","faq_items":[{"question":"What is a Disassociation Attack?","answer":"<p>A disassociation attack is a type of Denial of Service (DoS) attack that specifically targets wireless networks, such as Wi-Fi. The primary goal of this attack is to disrupt the network connection between wireless devices and their access point (AP), effectively denying the network's service to these devices.<\/p>"},{"question":"When were Disassociation Attacks first mentioned?","answer":"<p>Disassociation attacks were first mentioned in the early 2000s, around the time when Wi-Fi technology was becoming prevalent. They were initially referenced in academic and industry papers that addressed Wi-Fi security issues.<\/p>"},{"question":"How does a Disassociation Attack work?","answer":"<p>A disassociation attack works by sending disassociation frames into the network. Since the 802.11 Wi-Fi standard does not require these frames to be authenticated or encrypted, an attacker can spoof these frames, tricking the device and AP into disconnecting.<\/p>"},{"question":"What are the key features of Disassociation Attacks?","answer":"<p>Key features of disassociation attacks include being targeted, involving spoofing, unauthenticated and unencrypted frames, and being disruptive by nature, as their primary goal is to disrupt network access.<\/p>"},{"question":"What types of Disassociation Attacks exist?","answer":"<p>Disassociation attacks can broadly be classified into two types: Targeted Disassociation Attacks, where the attacker targets a specific device or a set of devices, and Broadcast Disassociation Attacks, where the attacker broadcasts disassociation frames over the entire network.<\/p>"},{"question":"What are the problems and solutions related to Disassociation Attacks?","answer":"<p>Problems related to disassociation attacks primarily involve network disruption, loss of service, and potential data loss or corruption. Solutions include implementing the 802.11w standard, MAC Address Filtering, and deploying Wireless Intrusion Prevention Systems (WIPS).<\/p>"},{"question":"How do Disassociation Attacks compare with similar attacks?","answer":"<p>Disassociation Attacks are similar to Deauthentication Attacks, with the main difference being the type of management frame sent. They are narrower in scope compared to Jamming Attacks, which can cause more widespread disruption but require more resources.<\/p>"},{"question":"What are the future perspectives and technologies related to Disassociation Attacks?","answer":"<p>The future will see advanced and robust encryption standards, like WPA3, making executing disassociation attacks more challenging. Technologies like Machine Learning and Artificial Intelligence can also be used to detect abnormal traffic patterns and mitigate potential threats in real-time.<\/p>"},{"question":"How are proxy servers associated with Disassociation Attacks?","answer":"<p>Proxy servers primarily operate in the realm of internet traffic, and their main role is not directly linked to defending against disassociation attacks. However, they play a vital role in overall network security, helping mask the IP address of network devices, adding an extra layer of anonymity and security.<\/p>"},{"question":"Where can I find more information about Disassociation Attacks?","answer":"<p>For more information, you can refer to resources like the IEEE 802.11 Standard, the paper \"Weaknesses in the Key Scheduling Algorithm of RC4\", the WPA3 Specification, and various online resources that provide information on understanding disassociation attacks.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476850","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476850\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/476851"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=476850"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}