{"id":477500,"date":"2023-08-09T09:15:57","date_gmt":"2023-08-09T09:15:57","guid":{"rendered":""},"modified":"2023-09-05T11:14:50","modified_gmt":"2023-09-05T11:14:50","slug":"http-parameter-pollution","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/http-parameter-pollution\/","title":{"rendered":"\u00d4 nhi\u1ec5m th\u00f4ng s\u1ed1 HTTP"},"content":{"rendered":"

\u00d4 nhi\u1ec5m tham s\u1ed1 HTTP (HPP) l\u00e0 m\u1ed9t l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt web th\u01b0\u1eddng b\u1ecb b\u1ecf qua, ch\u1ee7 y\u1ebfu \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c \u1ee9ng d\u1ee5ng web b\u1eb1ng c\u00e1ch thao t\u00fang d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c g\u1eedi qua c\u00e1c y\u00eau c\u1ea7u HTTP. B\u00e0i vi\u1ebft n\u00e0y \u0111i s\u00e2u v\u00e0o l\u1ecbch s\u1eed, ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a HPP, c\u0169ng nh\u01b0 c\u00e1c lo\u1ea1i kh\u00e1c nhau, \u1ee9ng d\u1ee5ng ti\u1ec1m n\u0103ng c\u0169ng nh\u01b0 c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p li\u00ean quan. B\u00e0i vi\u1ebft c\u0169ng t\u00ecm hi\u1ec3u s\u1ef1 k\u1ebft n\u1ed1i gi\u1eefa HPP v\u00e0 m\u00e1y ch\u1ee7 proxy, c\u00f9ng v\u1edbi nh\u1eefng g\u00f3c nh\u00ecn trong t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng d\u1ef1a tr\u00ean web n\u00e0y.<\/p>\n

S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a \u00f4 nhi\u1ec5m tham s\u1ed1 HTTP<\/h2>\n

\u00d4 nhi\u1ec5m tham s\u1ed1 HTTP l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 m\u1ed9t l\u1ed7 h\u1ed5ng \u1ee9ng d\u1ee5ng web ri\u00eang bi\u1ec7t v\u00e0o kho\u1ea3ng \u0111\u1ea7u nh\u1eefng n\u0103m 2000, v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng c\u1ee7a c\u00f4ng ngh\u1ec7 web v\u00e0 s\u1ef1 m\u1edf r\u1ed9ng c\u1ee7a World Wide Web. Khi c\u00e1c trang web b\u1eaft \u0111\u1ea7u ph\u1ee5 thu\u1ed9c nhi\u1ec1u h\u01a1n v\u00e0o c\u00e1c y\u00eau c\u1ea7u HTTP GET v\u00e0 POST \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u, tin t\u1eb7c \u0111\u00e3 ph\u00e1t hi\u1ec7n ra ti\u1ec1m n\u0103ng khai th\u00e1c c\u00e1ch c\u00e1c y\u00eau c\u1ea7u n\u00e0y x\u1eed l\u00fd c\u00e1c tham s\u1ed1.<\/p>\n

T\u00e0i li\u1ec7u \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn HPP c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb nh\u1eefng n\u0103m 2000, nh\u01b0ng b\u1ea3n th\u00e2n thu\u1eadt ng\u1eef n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ed9ng \u0111\u1ed3ng b\u1ea3o m\u1eadt web ch\u00ednh th\u1ee9c c\u00f4ng nh\u1eadn sau khi OWASP (D\u1ef1 \u00e1n b\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web m\u1edf) ph\u00e1t h\u00e0nh m\u1ed9t b\u00e0i b\u00e1o v\u00e0o n\u0103m 2010, khi\u1ebfn l\u1ed7 h\u1ed5ng n\u00e0y tr\u1edf n\u00ean n\u1ed5i b\u1eadt. .<\/p>\n

Gi\u1ea3i n\u00e9n \u00f4 nhi\u1ec5m tham s\u1ed1 HTTP<\/h2>\n

\u00d4 nhi\u1ec5m tham s\u1ed1 HTTP l\u00e0 m\u1ed9t lo\u1ea1i l\u1ed7 h\u1ed5ng web li\u00ean quan \u0111\u1ebfn vi\u1ec7c \u0111\u01b0a c\u00e1c tham s\u1ed1 b\u1ecb thao t\u00fang v\u00e0o c\u00e1c y\u00eau c\u1ea7u HTTP. \u0110i\u1ec1u n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng cho ph\u00e9p k\u1ebb t\u1ea5n c\u00f4ng thay \u0111\u1ed5i c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u1ee9ng d\u1ee5ng web, b\u1ecf qua ki\u1ec3m tra x\u00e1c th\u1ef1c \u0111\u1ea7u v\u00e0o, truy c\u1eadp d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c h\u00ecnh th\u1ee9c t\u1ea5n c\u00f4ng d\u1ef1a tr\u00ean web kh\u00e1c.<\/p>\n

HPP x\u1ea3y ra khi m\u1ed9t \u1ee9ng d\u1ee5ng web k\u1ebft h\u1ee3p c\u00e1c tham s\u1ed1 HTTP c\u00f3 c\u00f9ng t\u00ean t\u1eeb c\u00e1c ph\u1ea7n kh\u00e1c nhau c\u1ee7a y\u00eau c\u1ea7u HTTP th\u00e0nh m\u1ed9t. B\u1eb1ng c\u00e1ch thao t\u00fang c\u00e1c tham s\u1ed1 n\u00e0y, k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t h\u00e0nh vi c\u1ee7a \u1ee9ng d\u1ee5ng theo nh\u1eefng c\u00e1ch kh\u00f4ng mong mu\u1ed1n, d\u1eabn \u0111\u1ebfn h\u00e0ng lo\u1ea1t r\u1ee7i ro b\u1ea3o m\u1eadt ti\u1ec1m \u1ea9n.<\/p>\n

C\u01a1 ch\u1ebf \u00f4 nhi\u1ec5m tham s\u1ed1 HTTP<\/h2>\n

Ho\u1ea1t \u0111\u1ed9ng b\u00ean trong c\u1ee7a HPP b\u1eaft ngu\u1ed3n t\u1eeb c\u00e1ch \u1ee9ng d\u1ee5ng web x\u1eed l\u00fd c\u00e1c y\u00eau c\u1ea7u HTTP. Trong y\u00eau c\u1ea7u HTTP, c\u00e1c tham s\u1ed1 \u0111\u01b0\u1ee3c g\u1eedi nh\u01b0 m\u1ed9t ph\u1ea7n c\u1ee7a URL trong y\u00eau c\u1ea7u GET ho\u1eb7c trong ph\u1ea7n n\u1ed9i dung c\u1ee7a y\u00eau c\u1ea7u POST. C\u00e1c tham s\u1ed1 n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh d\u1eef li\u1ec7u m\u00e0 \u1ee9ng d\u1ee5ng web s\u1ebd tr\u1ea3 v\u1ec1 ho\u1eb7c v\u1eadn h\u00e0nh.<\/p>\n

Khi m\u1ed9t y\u00eau c\u1ea7u HTTP \u0111\u01b0\u1ee3c g\u1eedi t\u1edbi m\u1ed9t \u1ee9ng d\u1ee5ng web, m\u00e1y ch\u1ee7 c\u1ee7a \u1ee9ng d\u1ee5ng s\u1ebd x\u1eed l\u00fd c\u00e1c tham s\u1ed1 c\u00f3 trong y\u00eau c\u1ea7u \u0111\u00f3. Tuy nhi\u00ean, n\u1ebfu \u1ee9ng d\u1ee5ng kh\u00f4ng x\u1eed l\u00fd ch\u00ednh x\u00e1c c\u00e1c tr\u01b0\u1eddng h\u1ee3p c\u00f3 c\u00f9ng m\u1ed9t tham s\u1ed1 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o nhi\u1ec1u l\u1ea7n, \u0111i\u1ec1u n\u00e0y s\u1ebd t\u1ea1o c\u01a1 h\u1ed9i cho m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng HPP.<\/p>\n

Trong cu\u1ed9c t\u1ea5n c\u00f4ng HPP, k\u1ebb t\u1ea5n c\u00f4ng bao g\u1ed3m c\u00f9ng m\u1ed9t tham s\u1ed1 nhi\u1ec1u l\u1ea7n trong m\u1ed9t y\u00eau c\u1ea7u HTTP, m\u1ed7i l\u1ea7n c\u00f3 c\u00e1c gi\u00e1 tr\u1ecb kh\u00e1c nhau. Sau \u0111\u00f3, m\u00e1y ch\u1ee7 \u1ee9ng d\u1ee5ng k\u1ebft h\u1ee3p c\u00e1c gi\u00e1 tr\u1ecb n\u00e0y theo c\u00e1ch kh\u00f4ng mong mu\u1ed1n c\u1ee7a nh\u00e0 ph\u00e1t tri\u1ec3n, d\u1eabn \u0111\u1ebfn c\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt ti\u1ec1m \u1ea9n.<\/p>\n

C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a \u00d4 nhi\u1ec5m tham s\u1ed1 HTTP<\/h2>\n

M\u1ed9t s\u1ed1 t\u00ednh n\u0103ng x\u00e1c \u0111\u1ecbnh gi\u00fap ph\u00e2n bi\u1ec7t \u00d4 nhi\u1ec5m tham s\u1ed1 HTTP v\u1edbi c\u00e1c l\u1ed7 h\u1ed5ng web kh\u00e1c:<\/p>\n

    \n
  1. Nh\u1eafm m\u1ee5c ti\u00eau c\u00e1c y\u00eau c\u1ea7u HTTP:<\/strong> HPP nh\u1eafm m\u1ee5c ti\u00eau c\u1ee5 th\u1ec3 c\u00e1c tham s\u1ed1 trong c\u00e1c y\u00eau c\u1ea7u HTTP GET v\u00e0 POST.<\/li>\n
  2. Thao t\u00e1c c\u00e1c tham s\u1ed1:<\/strong> C\u1ed1t l\u00f5i c\u1ee7a cu\u1ed9c t\u1ea5n c\u00f4ng HPP li\u00ean quan \u0111\u1ebfn vi\u1ec7c thao t\u00fang c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a c\u00e1c tham s\u1ed1 n\u00e0y.<\/li>\n
  3. Ph\u1ee5 thu\u1ed9c v\u00e0o h\u00e0nh vi \u1ee9ng d\u1ee5ng:<\/strong> T\u00e1c \u0111\u1ed9ng c\u1ee7a cu\u1ed9c t\u1ea5n c\u00f4ng HPP ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o c\u00e1ch \u1ee9ng d\u1ee5ng web \u0111\u01b0\u1ee3c nh\u1eafm m\u1ee5c ti\u00eau x\u1eed l\u00fd c\u00e1c tham s\u1ed1 l\u1eb7p l\u1ea1i trong y\u00eau c\u1ea7u HTTP.<\/li>\n
  4. Ti\u1ec1m n\u0103ng t\u00e1c \u0111\u1ed9ng r\u1ed9ng r\u00e3i:<\/strong> V\u00ec HPP c\u00f3 kh\u1ea3 n\u0103ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn b\u1ea5t k\u1ef3 \u1ee9ng d\u1ee5ng web n\u00e0o kh\u00f4ng x\u1eed l\u00fd \u0111\u00fang c\u00e1ch c\u00e1c tham s\u1ed1 HTTP l\u1eb7p l\u1ea1i n\u00ean kh\u1ea3 n\u0103ng t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3 l\u00e0 r\u1ea5t r\u1ed9ng.<\/li>\n
  5. Ph\u01b0\u01a1ng ph\u00e1p l\u00e9n l\u00fat:<\/strong> C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng HPP c\u00f3 th\u1ec3 kh\u00f3 b\u1ecb ph\u00e1t hi\u1ec7n v\u00ec ch\u00fang c\u00f3 th\u1ec3 gi\u1ea3 d\u1ea1ng \u0111\u1ea7u v\u00e0o h\u1ee3p ph\u00e1p c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<\/ol>\n

    C\u00e1c lo\u1ea1i \u00f4 nhi\u1ec5m tham s\u1ed1 HTTP<\/h2>\n

    C\u00f3 hai lo\u1ea1i \u00d4 nhi\u1ec5m tham s\u1ed1 HTTP ch\u00ednh d\u1ef1a tr\u00ean ph\u01b0\u01a1ng th\u1ee9c HTTP \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng:<\/p>\n

      \n
    1. HPP d\u1ef1a tr\u00ean GET:<\/strong> Ki\u1ec3u t\u1ea5n c\u00f4ng HPP n\u00e0y thao t\u00fang c\u00e1c tham s\u1ed1 trong URL c\u1ee7a y\u00eau c\u1ea7u HTTP GET.<\/li>\n
    2. HPP d\u1ef1a tr\u00ean POST:<\/strong> Ki\u1ec3u t\u1ea5n c\u00f4ng HPP n\u00e0y thao t\u00fang c\u00e1c tham s\u1ed1 trong ph\u1ea7n n\u1ed9i dung c\u1ee7a y\u00eau c\u1ea7u HTTP POST.<\/li>\n<\/ol>\n\n\n\n\n\n\n
      Ph\u01b0\u01a1ng th\u1ee9c HTTP<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\nT\u00e1c \u0111\u1ed9ng ti\u1ec1m t\u00e0ng<\/th>\n<\/tr>\n<\/thead>\n
      L\u1ea4Y<\/td>\nC\u00e1c tham s\u1ed1 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o URL v\u00e0 hi\u1ec3n th\u1ecb cho ng\u01b0\u1eddi d\u00f9ng.<\/td>\nC\u00f3 th\u1ec3 \u0111i\u1ec1u khi\u1ec3n ph\u1ea3n h\u1ed3i c\u1ee7a m\u00e1y ch\u1ee7 ho\u1eb7c h\u00e0nh vi c\u1ee7a \u1ee9ng d\u1ee5ng web<\/td>\n<\/tr>\n
      B\u01afU KI\u1ec6N<\/td>\nC\u00e1c tham s\u1ed1 \u0111\u01b0\u1ee3c bao g\u1ed3m trong ph\u1ea7n n\u1ed9i dung c\u1ee7a y\u00eau c\u1ea7u HTTP v\u00e0 b\u1ecb \u1ea9n.<\/td>\nC\u00f3 th\u1ec3 thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i c\u1ee7a m\u00e1y ch\u1ee7 v\u00e0 th\u00f4ng tin n\u00f3 l\u01b0u tr\u1eef<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Tri\u1ec3n khai \u00f4 nhi\u1ec5m tham s\u1ed1 HTTP: V\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n

      M\u1eb7c d\u00f9 c\u00f3 t\u00ednh ch\u1ea5t l\u00e9n l\u00fat nh\u01b0ng v\u1eabn c\u00f3 nhi\u1ec1u c\u00e1ch \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 gi\u1ea3m thi\u1ec3u r\u1ee7i ro do c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng HPP g\u00e2y ra. H\u1ea7u h\u1ebft \u0111\u1ec1u li\u00ean quan \u0111\u1ebfn vi\u1ec7c x\u1eed l\u00fd v\u00e0 v\u1ec7 sinh \u0111\u1ea7u v\u00e0o \u0111\u00fang c\u00e1ch, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi c\u00e1c tham s\u1ed1 HTTP:<\/p>\n

        \n
      1. X\u00e1c th\u1ef1c \u0111\u1ea7u v\u00e0o:<\/strong> C\u00e1c \u1ee9ng d\u1ee5ng web ph\u1ea3i x\u00e1c th\u1ef1c t\u1ea5t c\u1ea3 \u0111\u1ea7u v\u00e0o \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o n\u00f3 \u0111\u00e1p \u1ee9ng c\u00e1c \u0111\u1ecbnh d\u1ea1ng mong \u0111\u1ee3i.<\/li>\n
      2. V\u1ec7 sinh \u0111\u1ea7u v\u00e0o:<\/strong> T\u1ea5t c\u1ea3 \u0111\u1ea7u v\u00e0o ph\u1ea3i \u0111\u01b0\u1ee3c kh\u1eed tr\u00f9ng \u0111\u1ec3 lo\u1ea1i b\u1ecf d\u1eef li\u1ec7u c\u00f3 h\u1ea1i ti\u1ec1m \u1ea9n.<\/li>\n
      3. Tri\u1ec3n khai T\u01b0\u1eddng l\u1eeda \u1ee9ng d\u1ee5ng web (WAF):<\/strong> WAF c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 ch\u1eb7n nhi\u1ec1u n\u1ed7 l\u1ef1c HPP.<\/li>\n
      4. Ki\u1ec3m tra an ninh th\u01b0\u1eddng xuy\u00ean:<\/strong> Th\u01b0\u1eddng xuy\u00ean xem l\u1ea1i m\u00e3 v\u00e0 ti\u1ebfn h\u00e0nh ki\u1ec3m tra th\u00e2m nh\u1eadp c\u00f3 th\u1ec3 gi\u00fap x\u00e1c \u0111\u1ecbnh v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c l\u1ed7 h\u1ed5ng ti\u1ec1m \u1ea9n.<\/li>\n<\/ol>\n

        So s\u00e1nh v\u1edbi c\u00e1c l\u1ed7 h\u1ed5ng t\u01b0\u01a1ng t\u1ef1<\/h2>\n

        D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 l\u1ed7 h\u1ed5ng web c\u00f3 m\u1ed9t s\u1ed1 \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi HPP:<\/p>\n\n\n\n\n\n\n\n
        T\u00ednh d\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\nT\u01b0\u01a1ng t\u1ef1 v\u1edbi HPP<\/th>\n<\/tr>\n<\/thead>\n
        Ti\u00eam SQL<\/td>\nK\u1ebb t\u1ea5n c\u00f4ng thao t\u00fang \u0111\u1ea7u v\u00e0o \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c truy v\u1ea5n SQL t\u00f9y \u00fd tr\u00ean c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/td>\nC\u1ea3 hai \u0111\u1ec1u li\u00ean quan \u0111\u1ebfn vi\u1ec7c thao t\u00e1c \u0111\u1ea7u v\u00e0o \u0111\u1ec3 thay \u0111\u1ed5i h\u00e0nh vi c\u1ee7a \u1ee9ng d\u1ee5ng.<\/td>\n<\/tr>\n
        XSS<\/td>\nK\u1ebb t\u1ea5n c\u00f4ng ti\u00eam c\u00e1c t\u1eadp l\u1ec7nh \u0111\u1ed9c h\u1ea1i v\u00e0o c\u00e1c trang web \u0111\u01b0\u1ee3c ng\u01b0\u1eddi d\u00f9ng kh\u00e1c xem.<\/td>\nC\u1ea3 hai \u0111\u1ec1u c\u00f3 th\u1ec3 thao t\u00fang h\u00e0nh vi ph\u00eda m\u00e1y ch\u1ee7 v\u00e0 x\u00e2m ph\u1ea1m th\u00f4ng tin c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/td>\n<\/tr>\n
        CSRF<\/td>\nK\u1ebb t\u1ea5n c\u00f4ng l\u1eeba n\u1ea1n nh\u00e2n th\u1ef1c hi\u1ec7n c\u00e1c h\u00e0nh \u0111\u1ed9ng kh\u00f4ng mong mu\u1ed1n tr\u00ean \u1ee9ng d\u1ee5ng web m\u00e0 h\u1ecd \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c.<\/td>\nC\u1ea3 hai \u0111\u1ec1u khai th\u00e1c s\u1ef1 tin c\u1eady m\u00e0 m\u1ed9t trang web c\u00f3 trong tr\u00ecnh duy\u1ec7t c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Vi\u1ec5n c\u1ea3nh t\u01b0\u01a1ng lai c\u1ee7a \u00f4 nhi\u1ec5m tham s\u1ed1 HTTP<\/h2>\n

        Khi c\u00e1c \u1ee9ng d\u1ee5ng web ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n th\u00ec c\u00e1c k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 khai th\u00e1c ch\u00fang c\u0169ng s\u1ebd ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n. M\u1eb7c d\u00f9 \u00d4 nhi\u1ec5m tham s\u1ed1 HTTP \u0111\u00e3 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn t\u1eeb l\u00e2u nh\u01b0ng n\u00f3 v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c hi\u1ec3u ho\u1eb7c ki\u1ec3m tra r\u1ed9ng r\u00e3i, c\u00f3 ngh\u0129a l\u00e0 n\u00f3 c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh m\u1ed1i \u0111e d\u1ecda n\u1ed5i b\u1eadt h\u01a1n trong t\u01b0\u01a1ng lai. Ngo\u00e0i ra, khi ng\u00e0y c\u00e0ng c\u00f3 nhi\u1ec1u thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 web v\u1edbi Internet of Things, b\u1ec1 m\u1eb7t t\u1ea5n c\u00f4ng ti\u1ec1m t\u00e0ng c\u1ee7a HPP s\u1ebd m\u1edf r\u1ed9ng.<\/p>\n

        Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y c\u0169ng c\u00f3 ngh\u0129a l\u00e0 c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ed1ng l\u1ea1i HPP c\u00f3 th\u1ec3 s\u1ebd \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. Ng\u01b0\u1eddi ta ng\u00e0y c\u00e0ng t\u1eadp trung v\u00e0o c\u00e1c ph\u01b0\u01a1ng ph\u00e1p m\u00e3 h\u00f3a an to\u00e0n v\u00e0 c\u00e1c c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 ng\u0103n ch\u1eb7n nh\u1eefng l\u1ed7 h\u1ed5ng nh\u01b0 v\u1eady. Trong t\u01b0\u01a1ng lai, ch\u00fang ta c\u00f3 th\u1ec3 th\u1ea5y c\u00e1c WAF ph\u1ee9c t\u1ea1p h\u01a1n v\u00e0 c\u00e1c c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng t\u1ef1 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u00f4 nhi\u1ec5m tham s\u1ed1.<\/p>\n

        M\u00e1y ch\u1ee7 proxy v\u00e0 \u00f4 nhi\u1ec5m tham s\u1ed1 HTTP<\/h2>\n

        M\u00e1y ch\u1ee7 proxy ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t trung gian cho c\u00e1c y\u00eau c\u1ea7u t\u1eeb kh\u00e1ch h\u00e0ng \u0111ang t\u00ecm ki\u1ebfm t\u00e0i nguy\u00ean t\u1eeb c\u00e1c m\u00e1y ch\u1ee7 kh\u00e1c, c\u00f3 kh\u1ea3 n\u0103ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng HPP. H\u1ecd c\u00f3 th\u1ec3 ki\u1ec3m tra c\u00e1c y\u00eau c\u1ea7u HTTP \u0111\u1ebfn \u0111\u1ec3 t\u00ecm d\u1ea5u hi\u1ec7u c\u1ee7a HPP (nh\u01b0 c\u00e1c tham s\u1ed1 l\u1eb7p l\u1ea1i) v\u00e0 ch\u1eb7n ho\u1eb7c thay \u0111\u1ed5i c\u00e1c y\u00eau c\u1ea7u n\u00e0y \u0111\u1ec3 gi\u1ea3m thi\u1ec3u m\u1ed1i \u0111e d\u1ecda.<\/p>\n

        H\u01a1n n\u1eefa, m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t h\u00ecnh th\u1ee9c c\u00e1ch ly, b\u1ea3o v\u1ec7 m\u1ea1ng n\u1ed9i b\u1ed9 kh\u1ecfi ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi internet v\u00e0 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng HPP ti\u1ec1m \u1ea9n. Ch\u00fang c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u1ec3 ghi l\u1ea1i t\u1ea5t c\u1ea3 c\u00e1c y\u00eau c\u1ea7u HTTP \u0111\u1ebfn, cung c\u1ea5p d\u1eef li\u1ec7u c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u00e0 ph\u00e2n t\u00edch c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng HPP \u0111\u00e3 c\u1ed1 g\u1eafng.<\/p>\n

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

        \u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 \u00d4 nhi\u1ec5m tham s\u1ed1 HTTP, vui l\u00f2ng truy c\u1eadp c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n

          \n
        1. OWASP: \u00d4 nhi\u1ec5m tham s\u1ed1 HTTP<\/a><\/li>\n
        2. Acunetix: \u00d4 nhi\u1ec5m tham s\u1ed1 HTTP l\u00e0 g\u00ec<\/a><\/li>\n
        3. L\u1ed7 h\u1ed5ng \u00f4 nhi\u1ec5m tham s\u1ed1 HTTP<\/a><\/li>\n
        4. \u00d4 nhi\u1ec5m tham s\u1ed1 HTTP (HPP) \u0111\u1ec3 gi\u1ea3i tr\u00ed v\u00e0 ki\u1ebfm l\u1ee3i nhu\u1eadn<\/a><\/li>\n
        5. B\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u00f4 nhi\u1ec5m tham s\u1ed1 HTTP<\/a><\/li>\n<\/ol>","protected":false},"featured_media":477501,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-477500","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about HTTP Parameter Pollution: A Comprehensive Exploration<\/mark>","faq_items":[{"question":"What is HTTP Parameter Pollution?","answer":"

          HTTP Parameter Pollution (HPP) is a web security vulnerability that involves the injection of manipulated parameters into HTTP requests. This could potentially allow attackers to alter the way a web application functions, bypass input validation checks, access sensitive data, and carry out other forms of web-based attacks.<\/p>"},{"question":"When was HTTP Parameter Pollution first identified?","answer":"

          HTTP Parameter Pollution was first identified as a distinct web application vulnerability around the early 2000s. However, it was officially recognized by the web security community following the release of a paper by OWASP (Open Web Application Security Project) in 2010.<\/p>"},{"question":"How does an HTTP Parameter Pollution attack work?","answer":"

          In an HPP attack, the attacker includes the same parameter multiple times within an HTTP request, each time with different values. The application server then combines these values in a way that was not intended by the developers, leading to potential security vulnerabilities.<\/p>"},{"question":"What are the key features of HTTP Parameter Pollution?","answer":"

          The key features of HTTP Parameter Pollution include targeting HTTP requests, manipulation of parameters, dependency on the application behaviour, the potential for a widespread impact, and its stealthy approach.<\/p>"},{"question":"What types of HTTP Parameter Pollution exist?","answer":"

          There are two primary types of HTTP Parameter Pollution based on the HTTP method used: GET-Based HPP, which manipulates the parameters within the URL of an HTTP GET request, and POST-Based HPP, which manipulates the parameters within the body of an HTTP POST request.<\/p>"},{"question":"How can one mitigate the risks posed by HTTP Parameter Pollution attacks?","answer":"

          Most mitigation strategies involve properly handling and sanitizing input, particularly with respect to HTTP parameters. This includes validating and sanitizing input, implementing a Web Application Firewall (WAF), and conducting regular security audits.<\/p>"},{"question":"How do proxy servers guard against HTTP Parameter Pollution attacks?","answer":"

          Proxy servers can inspect incoming HTTP requests for signs of HPP (like repeated parameters) and block or alter these requests to mitigate the threat. They can also isolate internal networks from direct exposure to the internet and potential HPP attacks, and log all incoming HTTP requests for further analysis.<\/p>"},{"question":"What are the future perspectives of HTTP Parameter Pollution?","answer":"

          As web applications continue to evolve, so too will the techniques used to exploit them. However, the focus on secure coding practices and automated tools to detect and prevent such vulnerabilities is also increasing. In the future, we may see more sophisticated WAFs and similar technologies specifically designed to defend against parameter pollution attacks.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/477500","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\/477500\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/477501"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=477500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}