{"id":476809,"date":"2023-08-09T07:36:15","date_gmt":"2023-08-09T07:36:15","guid":{"rendered":""},"modified":"2023-09-05T11:13:28","modified_gmt":"2023-09-05T11:13:28","slug":"dictionary-attack","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/dictionary-attack\/","title":{"rendered":"T\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n"},"content":{"rendered":"

T\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n l\u00e0 m\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u01b0\u1ee3c t\u1ed9i ph\u1ea1m m\u1ea1ng s\u1eed d\u1ee5ng \u0111\u1ec3 truy c\u1eadp tr\u00e1i ph\u00e9p v\u00e0o h\u1ec7 th\u1ed1ng v\u00e0 d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch b\u1ebb kh\u00f3a m\u1eadt kh\u1ea9u. Ch\u00fang li\u00ean quan \u0111\u1ebfn vi\u1ec7c nh\u1eadp m\u1ed9t c\u00e1ch c\u00f3 h\u1ec7 th\u1ed1ng t\u1ea5t c\u1ea3 c\u00e1c t\u1eeb trong t\u1eeb \u0111i\u1ec3n v\u00e0o t\u00e0i kho\u1ea3n ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c nh\u1eafm m\u1ee5c ti\u00eau nh\u1eb1m t\u00ecm ra m\u1eadt kh\u1ea9u.<\/p>\n

L\u1ecbch s\u1eed v\u00e0 ngu\u1ed3n g\u1ed1c c\u1ee7a cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n<\/h2>\n

L\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n \u0111\u01b0\u1ee3c ghi l\u1ea1i l\u00e0 v\u00e0o \u0111\u1ea7u nh\u1eefng n\u0103m 1980, kho\u1ea3ng th\u1eddi gian m\u00e1y t\u00ednh c\u00e1 nh\u00e2n \u0111ang ph\u00e1t tri\u1ec3n. V\u1edbi s\u1ef1 ra \u0111\u1eddi c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh y\u00eau c\u1ea7u m\u1eadt kh\u1ea9u \u0111\u1ec3 truy c\u1eadp, \u00fd t\u01b0\u1edfng s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn d\u1ef1a tr\u00ean t\u1eeb \u0111i\u1ec3n \u0111\u1ec3 \u0111o\u00e1n m\u1eadt kh\u1ea9u l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p tr\u1ef1c quan cho nh\u1eefng k\u1ebb t\u1ea5n c\u00f4ng ti\u1ec1m n\u0103ng. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y n\u1ed5i ti\u1ebfng do t\u00ednh hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3 \u0111\u1ed1i v\u1edbi nh\u1eefng m\u1eadt kh\u1ea9u \u0111\u01b0\u1ee3c ch\u1ecdn k\u00e9m, th\u01b0\u1eddng bao g\u1ed3m c\u00e1c t\u1eeb ph\u1ed5 bi\u1ebfn ho\u1eb7c c\u00e1c bi\u1ebfn th\u1ec3 \u0111\u01a1n gi\u1ea3n c\u1ee7a ch\u00fang.<\/p>\n

Gi\u1ea3i th\u00edch chi ti\u1ebft v\u1ec1 cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n<\/h2>\n

T\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n, v\u1ec1 c\u01a1 b\u1ea3n nh\u1ea5t, l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 vi ph\u1ea1m t\u00ednh b\u1ea3o m\u1eadt m\u00e1y t\u00ednh c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1eb1ng m\u1eadt kh\u1ea9u b\u1eb1ng c\u00e1ch \u0111o\u00e1n m\u1eadt kh\u1ea9u m\u1ed9t c\u00e1ch c\u00f3 ph\u01b0\u01a1ng ph\u00e1p. K\u1ebb t\u1ea5n c\u00f4ng s\u1eed d\u1ee5ng danh s\u00e1ch c\u00e1c t\u1eeb \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc trong t\u1eeb \u0111i\u1ec3n, c\u00f3 th\u1ec3 bao g\u1ed3m t\u1eeb t\u1eeb \u0111i\u1ec3n ti\u1ebfng Anh ti\u00eau chu\u1ea9n \u0111\u1ebfn c\u00e1c danh s\u00e1ch ph\u1ee9c t\u1ea1p v\u00e0 chuy\u00ean bi\u1ec7t h\u01a1n bao g\u1ed3m c\u00e1c m\u1eadt kh\u1ea9u, c\u1ee5m t\u1eeb ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e1c c\u00e1ch \u0111o\u00e1n c\u00f3 th\u1ec3 kh\u00e1c.<\/p>\n

K\u1ebb t\u1ea5n c\u00f4ng t\u1ef1 \u0111\u1ed9ng h\u00f3a quy tr\u00ecnh b\u1eb1ng ph\u1ea7n m\u1ec1m nh\u1eadp t\u1eebng t\u1eeb m\u1ed9t v\u00e0o l\u1eddi nh\u1eafc \u0111\u0103ng nh\u1eadp c\u1ee7a h\u1ec7 th\u1ed1ng. N\u1ebfu m\u1eadt kh\u1ea9u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng l\u00e0 m\u1ed9t ph\u1ea7n trong t\u1eeb \u0111i\u1ec3n c\u1ee7a k\u1ebb t\u1ea5n c\u00f4ng th\u00ec cu\u1ed9c t\u1ea5n c\u00f4ng cu\u1ed1i c\u00f9ng s\u1ebd th\u00e0nh c\u00f4ng. Nh\u1eefng cu\u1ed9c t\u1ea5n c\u00f4ng n\u00e0y \u0111\u1eb7c bi\u1ec7t hi\u1ec7u qu\u1ea3 \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng kh\u00f4ng gi\u1edbi h\u1ea1n s\u1ed1 l\u1ea7n \u0111\u0103ng nh\u1eadp.<\/p>\n

C\u01a1 ch\u1ebf b\u00ean trong c\u1ee7a cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n<\/h2>\n

M\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c k\u1ebb t\u1ea5n c\u00f4ng l\u1ea5y \u0111\u01b0\u1ee3c b\u1ea3n sao t\u1ec7p t\u00e0i kho\u1ea3n ng\u01b0\u1eddi d\u00f9ng c\u1ee7a h\u1ec7 th\u1ed1ng, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 't\u1ec7p b\u00f3ng'. T\u1ec7p b\u00f3ng ch\u1ee9a c\u00e1c phi\u00ean b\u1ea3n b\u0103m c\u1ee7a m\u1eadt kh\u1ea9u ng\u01b0\u1eddi d\u00f9ng. Sau \u0111\u00f3, k\u1ebb t\u1ea5n c\u00f4ng t\u1ea1o ra m\u1ed9t 't\u1eeb \u0111i\u1ec3n' c\u00e1c phi\u00ean b\u1ea3n b\u0103m c\u1ee7a m\u1eadt kh\u1ea9u ti\u1ec1m n\u0103ng v\u00e0 so s\u00e1nh ch\u00fang v\u1edbi m\u1eadt kh\u1ea9u \u0111\u01b0\u1ee3c b\u0103m trong t\u1ec7p b\u00f3ng. N\u1ebfu t\u00ecm th\u1ea5y k\u1ebft qu\u1ea3 tr\u00f9ng kh\u1edbp th\u00ec m\u1eadt kh\u1ea9u \u0111\u00e3 b\u1ecb b\u1ebb kh\u00f3a m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n

S\u1ef1 th\u00e0nh c\u00f4ng c\u1ee7a m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n ph\u1ea7n l\u1edbn ph\u1ee5 thu\u1ed9c v\u00e0o quy m\u00f4 v\u00e0 t\u00ednh to\u00e0n di\u1ec7n c\u1ee7a t\u1eeb \u0111i\u1ec3n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u0169ng nh\u01b0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a m\u1eadt kh\u1ea9u \u0111\u01b0\u1ee3c nh\u1eafm m\u1ee5c ti\u00eau. M\u1eadt kh\u1ea9u c\u00e0ng \u0111\u01a1n gi\u1ea3n v\u00e0 ph\u1ed5 bi\u1ebfn th\u00ec c\u00e0ng c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng b\u1ecb b\u1ebb kh\u00f3a b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y.<\/p>\n

C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n<\/h2>\n
    \n
  1. T\u1ed1c \u0111\u1ed9:<\/strong> C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n nhanh h\u01a1n nhi\u1ec1u so v\u1edbi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng v\u0169 phu, ch\u00fang th\u1eed m\u1ecdi c\u00e1ch k\u1ebft h\u1ee3p k\u00fd t\u1ef1 c\u00f3 th\u1ec3 c\u00f3, b\u1edfi v\u00ec ch\u00fang ch\u1ec9 th\u1eed c\u00e1c kh\u1ea3 n\u0103ng c\u00f3 th\u1ec3 x\u1ea3y ra.<\/li>\n
  2. Hi\u1ec7u qu\u1ea3:<\/strong> H\u1ecd l\u1ee3i d\u1ee5ng th\u1ef1c t\u1ebf l\u00e0 nhi\u1ec1u ng\u01b0\u1eddi s\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u th\u00f4ng d\u1ee5ng, d\u1ec5 nh\u1edb.<\/li>\n
  3. H\u1ea1n ch\u1ebf:<\/strong> Hi\u1ec7u qu\u1ea3 c\u1ee7a ch\u00fang gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed1i v\u1edbi c\u00e1c m\u1eadt kh\u1ea9u ph\u1ee9c t\u1ea1p, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng m\u1eadt kh\u1ea9u s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p ch\u1eef c\u00e1i, s\u1ed1 v\u00e0 k\u00fd t\u1ef1 \u0111\u1eb7c bi\u1ec7t.<\/li>\n<\/ol>\n

    C\u00e1c ki\u1ec3u t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n<\/h2>\n

    Ch\u1ee7 y\u1ebfu c\u00f3 hai lo\u1ea1i t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n:<\/p>\n

      \n
    1. T\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n ti\u00eau chu\u1ea9n:<\/strong> \u0110i\u1ec1u n\u00e0y s\u1eed d\u1ee5ng m\u1ed9t t\u1ec7p danh s\u00e1ch t\u1eeb \u0111\u01a1n gi\u1ea3n ch\u1ee9a danh s\u00e1ch c\u00e1c t\u1eeb s\u1ebd \u0111\u01b0\u1ee3c th\u1eed \u0111\u1ed1i v\u1edbi tr\u01b0\u1eddng m\u1eadt kh\u1ea9u.<\/li>\n
    2. T\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n lai:<\/strong> \u0110\u00e2y l\u00e0 ki\u1ec3u t\u1ea5n c\u00f4ng n\u00e2ng cao h\u01a1n trong \u0111\u00f3 t\u1ec7p danh s\u00e1ch t\u1eeb \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi t\u1ec7p quy t\u1eafc. T\u1ec7p quy t\u1eafc x\u00e1c \u0111\u1ecbnh m\u1ed9t b\u1ed9 quy t\u1eafc \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o c\u00e1c d\u1ef1 \u0111o\u00e1n b\u1ed5 sung d\u1ef1a tr\u00ean c\u00e1c t\u1eeb trong danh s\u00e1ch t\u1eeb.<\/li>\n<\/ol>\n

      S\u1eed d\u1ee5ng c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n v\u00e0 c\u00e1c th\u00e1ch th\u1ee9c li\u00ean quan<\/h2>\n

      C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 b\u1ebb kh\u00f3a m\u1eadt kh\u1ea9u nh\u1eb1m truy c\u1eadp tr\u00e1i ph\u00e9p v\u00e0o h\u1ec7 th\u1ed1ng. Ch\u00fang \u0111\u1eb7t ra th\u00e1ch th\u1ee9c \u0111\u00e1ng k\u1ec3 \u0111\u1ed1i v\u1edbi b\u1ea3o m\u1eadt th\u00f4ng tin, \u0111\u1eb7c bi\u1ec7t trong tr\u01b0\u1eddng h\u1ee3p ng\u01b0\u1eddi d\u00f9ng c\u1ee7a t\u1ed5 ch\u1ee9c s\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u y\u1ebfu ho\u1eb7c ph\u1ed5 bi\u1ebfn.<\/p>\n

      M\u1ed9t trong nh\u1eefng gi\u1ea3i ph\u00e1p ch\u00ednh cho v\u1ea5n \u0111\u1ec1 n\u00e0y l\u00e0 th\u1ef1c hi\u1ec7n kh\u00f3a t\u00e0i kho\u1ea3n ho\u1eb7c tr\u00ec ho\u00e3n sau m\u1ed9t s\u1ed1 l\u1ea7n th\u1eed th\u1ea5t b\u1ea1i nh\u1ea5t \u0111\u1ecbnh. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m t\u1ed1c \u0111\u1ed9 k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 c\u1ed1 g\u1eafng \u0111o\u00e1n m\u1eadt kh\u1ea9u. Tuy nhi\u00ean, gi\u1ea3i ph\u00e1p n\u00e0y c\u0169ng c\u00f3 th\u1ec3 t\u1ea1o ra vect\u01a1 t\u1ea5n c\u00f4ng T\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 (DoS) ti\u1ec1m \u1ea9n n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd c\u1ea9n th\u1eadn.<\/p>\n

      M\u1ed9t gi\u1ea3i ph\u00e1p kh\u00e1c l\u00e0 s\u1eed d\u1ee5ng c\u00e1c quy t\u1eafc v\u1ec1 \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a m\u1eadt kh\u1ea9u, bu\u1ed9c ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i t\u1ea1o m\u1eadt kh\u1ea9u m\u00e0 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n \u00edt c\u00f3 kh\u1ea3 n\u0103ng \u0111o\u00e1n \u0111\u01b0\u1ee3c h\u01a1n. Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y \u0111\u00f4i khi c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c ng\u01b0\u1eddi d\u00f9ng t\u1ea1o v\u00e0 s\u1eed d\u1ee5ng l\u1ea1i nh\u1eefng m\u1eadt kh\u1ea9u ph\u1ee9c t\u1ea1p, kh\u00f3 nh\u1edb, ti\u1ec1m \u1ea9n nguy c\u01a1 b\u1ea3o m\u1eadt.<\/p>\n

      T\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n v\u00e0 c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n

      D\u01b0\u1edbi \u0111\u00e2y l\u00e0 so s\u00e1nh cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n v\u1edbi c\u00e1c ph\u01b0\u01a1ng th\u1ee9c t\u1ea5n c\u00f4ng t\u01b0\u01a1ng t\u1ef1 kh\u00e1c:<\/p>\n\n\n\n\n\n\n\n
      Ph\u01b0\u01a1ng th\u1ee9c t\u1ea5n c\u00f4ng<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\nSo s\u00e1nh<\/th>\n<\/tr>\n<\/thead>\n
      T\u1ea5n c\u00f4ng v\u0169 phu<\/td>\nC\u1ed1 g\u1eafng k\u1ebft h\u1ee3p m\u1ecdi k\u00fd t\u1ef1 c\u00f3 th\u1ec3 cho \u0111\u1ebfn khi t\u00ecm th\u1ea5y m\u1eadt kh\u1ea9u ch\u00ednh x\u00e1c<\/td>\nCh\u1eadm h\u01a1n nh\u01b0ng to\u00e0n di\u1ec7n h\u01a1n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n.<\/td>\n<\/tr>\n
      T\u1ea5n c\u00f4ng b\u00e0n c\u1ea7u v\u1ed3ng<\/td>\nS\u1eed d\u1ee5ng c\u00e1c b\u1ea3ng \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n tr\u01b0\u1edbc \u0111\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c c\u00e1c h\u00e0m b\u0103m m\u1eadt m\u00e3 nh\u1eb1m b\u1ebb kh\u00f3a b\u0103m m\u1eadt kh\u1ea9u<\/td>\nNhanh h\u01a1n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng b\u1ea1o l\u1ef1c nh\u01b0ng y\u00eau c\u1ea7u dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef \u0111\u00e1ng k\u1ec3 cho c\u00e1c b\u1ea3ng.<\/td>\n<\/tr>\n
      Nh\u1ed3i th\u00f4ng tin x\u00e1c th\u1ef1c<\/td>\nS\u1eed d\u1ee5ng th\u00f4ng tin \u0111\u0103ng nh\u1eadp b\u1ecb \u0111\u00e1nh c\u1eafp ho\u1eb7c b\u1ecb r\u00f2 r\u1ec9 \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c quy\u1ec1n truy c\u1eadp tr\u00e1i ph\u00e9p<\/td>\nV\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt, \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t h\u00ecnh th\u1ee9c b\u1ebb kh\u00f3a m\u1eadt kh\u1ea9u m\u00e0 l\u00e0 m\u1ed9t ki\u1ec3u t\u1ea5n c\u00f4ng l\u1ee3i d\u1ee5ng d\u1eef li\u1ec7u b\u1ecb vi ph\u1ea1m tr\u01b0\u1edbc \u0111\u00f3.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai<\/h2>\n

      Khi c\u00e1c m\u1ed1i \u0111e d\u1ecda tr\u00ean m\u1ea1ng ph\u00e1t tri\u1ec3n th\u00ec c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ch\u1ed1ng l\u1ea1i ch\u00fang c\u0169ng t\u0103ng theo. M\u1ed9t xu h\u01b0\u1edbng m\u1edbi n\u1ed5i trong cu\u1ed9c chi\u1ebfn ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n l\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y h\u1ecdc \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n v\u00e0 ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng nh\u01b0 v\u1eady. V\u00ed d\u1ee5: b\u1eb1ng c\u00e1ch nghi\u00ean c\u1ee9u c\u00e1c m\u1eabu h\u00e0nh vi c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, thu\u1eadt to\u00e1n c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c d\u1ea5u hi\u1ec7u c\u1ee7a m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n tr\u01b0\u1edbc khi n\u00f3 th\u00e0nh c\u00f4ng v\u00e0 th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng ph\u00f2ng ng\u1eeba.<\/p>\n

      M\u1ed9t c\u00f4ng ngh\u1ec7 \u0111ang ph\u00e1t tri\u1ec3n kh\u00e1c l\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng d\u1eef li\u1ec7u sinh tr\u1eafc h\u1ecdc \u0111\u1ec3 x\u00e1c th\u1ef1c, nh\u01b0 nh\u1eadn d\u1ea1ng v\u00e2n tay ho\u1eb7c khu\u00f4n m\u1eb7t, c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 nguy c\u01a1 b\u1ecb t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n v\u00ec ch\u00fang kh\u00f4ng d\u1ef1a v\u00e0o m\u1eadt kh\u1ea9u.<\/p>\n

      M\u00e1y ch\u1ee7 proxy v\u00e0 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n<\/h2>\n

      M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 gi\u00fap b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n. M\u1ed9t c\u00e1ch l\u00e0 l\u00e0m x\u00e1o tr\u1ed9n \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y ch\u1ee7 ho\u1eb7c h\u1ec7 th\u1ed1ng \u0111ang \u0111\u01b0\u1ee3c nh\u1eafm m\u1ee5c ti\u00eau. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 gi\u00fap ng\u0103n ch\u1eb7n k\u1ebb t\u1ea5n c\u00f4ng \u0111\u1ecbnh v\u1ecb v\u00e0 t\u1ea5n c\u00f4ng tr\u1ef1c ti\u1ebfp v\u00e0o h\u1ec7 th\u1ed1ng.<\/p>\n

      H\u01a1n n\u1eefa, m\u1ed9t s\u1ed1 m\u00e1y ch\u1ee7 proxy nh\u1ea5t \u0111\u1ecbnh cung c\u1ea5p c\u00e1c t\u00ednh n\u0103ng b\u1ea3o m\u1eadt b\u1ed5 sung nh\u01b0 gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9, c\u00f3 th\u1ec3 l\u00e0m ch\u1eadm ho\u1eb7c ch\u1eb7n c\u00e1c l\u1ea7n \u0111\u0103ng nh\u1eadp l\u1eb7p l\u1ea1i, ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n

      Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n

      \u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p \u0111\u1ed1i ph\u00f3, b\u1ea1n c\u00f3 th\u1ec3 truy c\u1eadp c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n

        \n
      1. H\u01b0\u1edbng d\u1eabn OWASP v\u1ec1 l\u01b0u tr\u1eef m\u1eadt kh\u1ea9u<\/a><\/li>\n
      2. Ph\u00f2ng \u0111\u1ecdc InfoSec c\u1ee7a Vi\u1ec7n SANS: B\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng m\u1eadt kh\u1ea9u<\/a><\/li>\n
      3. RFC 2617 \u2013 X\u00e1c th\u1ef1c HTTP<\/a><\/li>\n<\/ol>\n

        H\u00e3y nh\u1edb r\u1eb1ng, ch\u00eca kh\u00f3a \u0111\u1ec3 tr\u00e1nh tr\u1edf th\u00e0nh n\u1ea1n nh\u00e2n c\u1ee7a cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb \u0111i\u1ec3n l\u00e0 duy tr\u00ec m\u1eadt kh\u1ea9u t\u1ed1t, bao g\u1ed3m s\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u ph\u1ee9c t\u1ea1p, duy nh\u1ea5t v\u00e0 s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng ngh\u1ec7 b\u1ea3o v\u1ec7 c\u00f3 s\u1eb5n nh\u01b0 m\u00e1y ch\u1ee7 proxy an to\u00e0n v\u00e0 x\u00e1c th\u1ef1c \u0111a y\u1ebfu t\u1ed1.<\/p>","protected":false},"featured_media":468214,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476809","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Dictionary Attack: An Overview<\/mark>","faq_items":[{"question":"What is a dictionary attack?","answer":"

        A dictionary attack is a method used by cyber criminals to crack passwords and gain unauthorized access to systems. It involves systematically entering all the words from a predefined list or 'dictionary' against a targeted user account or system in an attempt to uncover the password.<\/p>"},{"question":"When was the dictionary attack first mentioned?","answer":"

        The first recorded mention of the dictionary attack dates back to the early 1980s, around the time when personal computing began to emerge.<\/p>"},{"question":"How does a dictionary attack work?","answer":"

        A dictionary attack starts with an attacker obtaining a copy of the system\u2019s user account file or 'shadow file' that contains hashed versions of the user\u2019s passwords. The attacker then generates a \u2018dictionary\u2019 of hashed versions of potential passwords and compares these against the hashed passwords in the shadow file. If a match is found, the password has been effectively cracked.<\/p>"},{"question":"What are the key features of a dictionary attack?","answer":"

        The key features of a dictionary attack include its speed and efficiency, as it only attempts to crack passwords using likely possibilities. However, it's less effective against complex passwords that use a mix of letters, numbers, and special characters.<\/p>"},{"question":"What types of dictionary attacks exist?","answer":"

        There are mainly two types of dictionary attacks: standard dictionary attacks that use a simple wordlist file, and hybrid dictionary attacks that combine a wordlist file with a rules file to generate additional guesses based on the words in the wordlist.<\/p>"},{"question":"What are some solutions to problems associated with dictionary attacks?","answer":"

        Implementing account lockouts or delays after a certain number of failed attempts and using password complexity rules are some solutions. However, account lockouts can potentially create a Denial-of-Service (DoS) attack vector, and password complexity rules can lead to users creating hard-to-remember passwords, both of which pose their own challenges.<\/p>"},{"question":"How do dictionary attacks compare with other similar terms?","answer":"

        Dictionary attacks are faster than brute-force attacks but less comprehensive. Rainbow table attacks, which use precomputed tables to reverse cryptographic hash functions for cracking password hashes, are faster than brute-force attacks but require significant storage. Credential stuffing uses stolen or leaked credentials to gain unauthorized access.<\/p>"},{"question":"What are the future perspectives and technologies related to dictionary attacks?","answer":"

        Machine learning and the use of biometric data for authentication are emerging trends in the fight against dictionary attacks. Machine learning can predict and prevent attacks by studying user behavior patterns, while biometric authentication reduces the reliance on passwords.<\/p>"},{"question":"How can proxy servers be associated with dictionary attacks?","answer":"

        Proxy servers can help protect against dictionary attacks by obfuscating the IP address of the targeted system, making it harder for attackers to locate and directly attack the system. Certain proxy servers also offer security features such as rate limiting, which can slow down or block repeated login attempts.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476809","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\/476809\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/468214"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=476809"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}