{"id":479635,"date":"2023-08-09T10:42:55","date_gmt":"2023-08-09T10:42:55","guid":{"rendered":""},"modified":"2023-09-05T11:19:16","modified_gmt":"2023-09-05T11:19:16","slug":"web-cache-poisoning","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/web-cache-poisoning\/","title":{"rendered":"Ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web"},"content":{"rendered":"<p>Ng\u1ed9 \u0111\u1ed9c b\u1ed9 nh\u1edb \u0111\u1ec7m web l\u00e0 m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng m\u1ea1ng tinh vi nh\u1eb1m khai th\u00e1c c\u00e1c l\u1ed7 h\u1ed5ng trong h\u1ec7 th\u1ed1ng b\u1ed9 nh\u1edb \u0111\u1ec7m web \u0111\u1ec3 \u0111\u01b0a n\u1ed9i dung \u0111\u1ed9c h\u1ea1i v\u00e0o c\u00e1c ph\u1ea3n h\u1ed3i \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb \u0111\u1ec7m, d\u1eabn \u0111\u1ebfn vi\u1ec7c ph\u00e2n ph\u1ed1i n\u1ed9i dung c\u00f3 h\u1ea1i cho nh\u1eefng ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng nghi ng\u1edd. K\u1ef9 thu\u1eadt n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng, ch\u1eb3ng h\u1ea1n nh\u01b0 ph\u00e1t t\u00e1n ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i, \u0111\u00e1nh c\u1eafp th\u00f4ng tin nh\u1ea1y c\u1ea3m ho\u1eb7c th\u1eadm ch\u00ed g\u00e2y gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5. V\u1edbi t\u01b0 c\u00e1ch l\u00e0 nh\u00e0 cung c\u1ea5p m\u00e1y ch\u1ee7 proxy, OneProxy nh\u1eadn th\u1ea5y t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c gi\u00e1o d\u1ee5c ng\u01b0\u1eddi d\u00f9ng v\u1ec1 m\u1ed1i \u0111e d\u1ecda n\u00e0y \u0111\u1ec3 gi\u00fap h\u1ecd lu\u00f4n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 trong b\u1ed1i c\u1ea3nh k\u1ef9 thu\u1eadt s\u1ed1 ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n.<\/p>\n<h2>L\u1ecbch s\u1eed v\u1ec1 ngu\u1ed3n g\u1ed1c c\u1ee7a ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web v\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn n\u00f3<\/h2>\n<p>K\u1ef9 thu\u1eadt \u0111\u1ea7u \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u trong m\u1ed9t b\u00e0i nghi\u00ean c\u1ee9u c\u00f3 ti\u00eau \u0111\u1ec1 \u201cT\u1ea5n c\u00f4ng c\u1eeda s\u1ed5 tr\u01b0\u1ee3t\u201d \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y t\u1ea1i H\u1ed9i ngh\u1ecb M\u0169 \u0111en Ch\u00e2u \u00c2u n\u0103m 2008 b\u1edfi Carlos Bueno v\u00e0 Jeremiah Grossman. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ee9ng minh c\u00e1ch h\u1ecd c\u00f3 th\u1ec3 khai th\u00e1c b\u1ed9 \u0111\u1ec7m web \u0111\u1ec3 cung c\u1ea5p n\u1ed9i dung \u0111\u1ed9c h\u1ea1i cho ng\u01b0\u1eddi d\u00f9ng m\u00e0 kh\u00f4ng c\u1ea7n t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp v\u1edbi m\u00e1y ch\u1ee7 m\u1ee5c ti\u00eau. K\u1ec3 t\u1eeb \u0111\u00f3, c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u1ea7u \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web \u0111\u00e3 ph\u00e1t tri\u1ec3n, ng\u00e0y c\u00e0ng tinh vi v\u00e0 ph\u1ed5 bi\u1ebfn h\u01a1n trong b\u1ed1i c\u1ea3nh c\u00e1c m\u1ed1i \u0111e d\u1ecda m\u1ea1ng.<\/p>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web. M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1 Ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web<\/h2>\n<p>Ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web li\u00ean quan \u0111\u1ebfn vi\u1ec7c thao t\u00fang b\u1ed9 \u0111\u1ec7m web \u0111\u1ec3 l\u01b0u tr\u1eef v\u00e0 ph\u00e2n ph\u00e1t n\u1ed9i dung \u0111\u1ed9c h\u1ea1i thay v\u00ec ph\u1ea3n h\u1ed3i h\u1ee3p ph\u00e1p. N\u00f3 th\u01b0\u1eddng khai th\u00e1c lu\u1ed3ng y\u00eau c\u1ea7u v\u00e0 ph\u1ea3n h\u1ed3i HTTP, l\u1ee3i d\u1ee5ng nhi\u1ec1u l\u1ed7 h\u1ed5ng kh\u00e1c nhau \u0111\u1ec3 s\u1eeda \u0111\u1ed5i c\u00e1c m\u1ee5c trong b\u1ed9 \u0111\u1ec7m. Cu\u1ed9c t\u1ea5n c\u00f4ng n\u00e0y d\u1ef1a tr\u00ean th\u1ef1c t\u1ebf l\u00e0 b\u1ed9 \u0111\u1ec7m web l\u01b0u tr\u1eef c\u00e1c b\u1ea3n sao c\u1ee7a n\u1ed9i dung \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u th\u01b0\u1eddng xuy\u00ean, gi\u1ea3m t\u1ea3i m\u00e1y ch\u1ee7 v\u00e0 c\u1ea3i thi\u1ec7n th\u1eddi gian t\u1ea3i trang web.<\/p>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a v\u1ee5 ng\u1ed9 \u0111\u1ed9c b\u1ed9 nh\u1edb \u0111\u1ec7m Web. C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a vi\u1ec7c \u0111\u1ea7u \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web<\/h2>\n<p>C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u1ea7u \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web th\u01b0\u1eddng th\u1ef1c hi\u1ec7n theo c\u00e1c b\u01b0\u1edbc sau:<\/p>\n<ol>\n<li>\n<p><strong>Y\u00eau c\u1ea7u bu\u00f4n l\u1eadu<\/strong>: K\u1ebb t\u1ea5n c\u00f4ng g\u1eedi c\u00e1c y\u00eau c\u1ea7u HTTP \u0111\u01b0\u1ee3c t\u1ea1o ra \u0111\u1eb7c bi\u1ec7t \u0111\u1ebfn m\u00e1y ch\u1ee7 m\u1ee5c ti\u00eau, thao t\u00fang c\u00e1c ti\u00eau \u0111\u1ec1 y\u00eau c\u1ea7u v\u00e0 khai th\u00e1c c\u00e1c bi\u1ebfn th\u1ec3 trong c\u00e1ch h\u1ec7 th\u1ed1ng m\u1eb7t tr\u01b0\u1edbc v\u00e0 m\u1eb7t sau di\u1ec5n gi\u1ea3i c\u00e1c ti\u00eau \u0111\u1ec1 n\u00e0y.<\/p>\n<\/li>\n<li>\n<p><strong>\u0110\u1ea7u \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m<\/strong>: B\u1eb1ng c\u00e1ch khai th\u00e1c s\u1ef1 kh\u00f4ng nh\u1ea5t qu\u00e1n trong vi\u1ec7c t\u1ea1o kh\u00f3a b\u1ed9 \u0111\u1ec7m, k\u1ebb t\u1ea5n c\u00f4ng l\u1eeba h\u1ec7 th\u1ed1ng b\u1ed9 \u0111\u1ec7m l\u01b0u tr\u1eef n\u1ed9i dung \u0111\u1ed9c h\u1ea1i c\u00f9ng v\u1edbi c\u00e1c ph\u1ea3n h\u1ed3i h\u1ee3p ph\u00e1p.<\/p>\n<\/li>\n<li>\n<p><strong>Cung c\u1ea5p n\u1ed9i dung \u0111\u1ed9c h\u1ea1i<\/strong>: Khi nh\u1eefng ng\u01b0\u1eddi d\u00f9ng ti\u1ebfp theo y\u00eau c\u1ea7u c\u00f9ng m\u1ed9t n\u1ed9i dung, ph\u1ea3n h\u1ed3i \u0111\u1ed9c h\u1ea1i s\u1ebd \u0111\u01b0\u1ee3c cung c\u1ea5p t\u1eeb b\u1ed9 \u0111\u1ec7m, l\u00e2y nhi\u1ec5m ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i v\u00e0o tr\u00ecnh duy\u1ec7t c\u1ee7a ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c th\u1ef1c hi\u1ec7n c\u00e1c h\u00e0nh \u0111\u1ed9ng \u0111\u1ed9c h\u1ea1i kh\u00e1c.<\/p>\n<\/li>\n<\/ol>\n<h2>Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a ng\u1ed9 \u0111\u1ed9c b\u1ed9 nh\u1edb \u0111\u1ec7m Web<\/h2>\n<p>C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a ng\u1ed9 \u0111\u1ed9c b\u1ed9 nh\u1edb \u0111\u1ec7m Web bao g\u1ed3m:<\/p>\n<ul>\n<li>\n<p><strong>C\u01a1 ch\u1ebf b\u1ed9 nh\u1edb \u0111\u1ec7m<\/strong>: Ng\u1ed9 \u0111\u1ed9c b\u1ed9 nh\u1edb \u0111\u1ec7m web khai th\u00e1c c\u00e1ch c\u01a1 ch\u1ebf b\u1ed9 nh\u1edb \u0111\u1ec7m l\u01b0u tr\u1eef v\u00e0 truy xu\u1ea5t n\u1ed9i dung \u0111\u1ec3 ph\u00e2n ph\u1ed1i c\u00e1c t\u1ea3i tr\u1ecdng \u0111\u1ed9c h\u1ea1i.<\/p>\n<\/li>\n<li>\n<p><strong>Thao t\u00e1c ti\u00eau \u0111\u1ec1<\/strong>: Nh\u1eefng k\u1ebb t\u1ea5n c\u00f4ng kh\u00e9o l\u00e9o thao t\u00fang c\u00e1c ti\u00eau \u0111\u1ec1 \u0111\u1ec3 \u0111\u00e1nh l\u1eeba b\u1ed9 nh\u1edb \u0111\u1ec7m v\u00e0 h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7 web, d\u1eabn \u0111\u1ebfn c\u00e1c m\u1ee5c nh\u1eadp b\u1ed9 \u0111\u1ec7m b\u1ecb nhi\u1ec5m \u0111\u1ed9c.<\/p>\n<\/li>\n<li>\n<p><strong>T\u1ea5n c\u00f4ng b\u00ed m\u1eadt<\/strong>: Ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web c\u00f3 th\u1ec3 kh\u00f3 ph\u00e1t hi\u1ec7n v\u00ec n\u1ed9i dung \u0111\u1ed9c h\u1ea1i v\u1eabn \u1ea9n trong b\u1ed9 \u0111\u1ec7m v\u00e0 ch\u1ec9 hi\u1ec3n th\u1ecb khi ng\u01b0\u1eddi d\u00f9ng c\u1ee5 th\u1ec3 y\u00eau c\u1ea7u.<\/p>\n<\/li>\n<\/ul>\n<h2>C\u00e1c lo\u1ea1i ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web<\/h2>\n<p>C\u00f3 nhi\u1ec1u k\u1ef9 thu\u1eadt v\u00e0 c\u00e1ch ti\u1ebfp c\u1eadn kh\u00e1c nhau \u0111\u1ec3 ti\u1ebfn h\u00e0nh c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u1ea7u \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 danh s\u00e1ch c\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn:<\/p>\n<table>\n<thead>\n<tr>\n<th>Ki\u1ec3u<\/th>\n<th>S\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Bu\u00f4n l\u1eadu y\u00eau c\u1ea7u HTTP<\/strong><\/td>\n<td>Khai th\u00e1c s\u1ef1 kh\u00e1c bi\u1ec7t trong vi\u1ec7c gi\u1ea3i th\u00edch c\u00e1c ti\u00eau \u0111\u1ec1 c\u1ee7a m\u00e1y ch\u1ee7 ngo\u1ea1i vi v\u00e0 ph\u1ee5 tr\u1ee3.<\/td>\n<\/tr>\n<tr>\n<td><strong>Thao t\u00e1c kh\u00f3a b\u1ed9 \u0111\u1ec7m<\/strong><\/td>\n<td>S\u1eeda \u0111\u1ed5i quy tr\u00ecnh t\u1ea1o kh\u00f3a b\u1ed9 \u0111\u1ec7m \u0111\u1ec3 bao g\u1ed3m n\u1ed9i dung \u0111\u1ed9c h\u1ea1i.<\/td>\n<\/tr>\n<tr>\n<td><strong>\u00d4 nhi\u1ec5m th\u00f4ng s\u1ed1<\/strong><\/td>\n<td>\u0110\u01b0a c\u00e1c tham s\u1ed1 \u0111\u1ed9c h\u1ea1i v\u00e0o URL \u0111\u1ec3 l\u00e0m h\u1ecfng c\u00e1c ph\u1ea3n h\u1ed3i \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb \u0111\u1ec7m.<\/td>\n<\/tr>\n<tr>\n<td><strong>Ti\u00eam ESI<\/strong><\/td>\n<td>Khai th\u00e1c Edge Side Bao g\u1ed3m (ESI) \u0111\u1ec3 \u0111\u01b0a m\u00e3 \u0111\u1ed9c v\u00e0o c\u00e1c trang \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb \u0111\u1ec7m.<\/td>\n<\/tr>\n<tr>\n<td><strong>Gi\u1ea3 m\u1ea1o n\u1ed9i dung<\/strong><\/td>\n<td>Gi\u1ea3 m\u1ea1o n\u1ed9i dung \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb \u0111\u1ec7m \u0111\u1ec3 cung c\u1ea5p d\u1eef li\u1ec7u \u0111\u1ed9c h\u1ea1i \u0111\u01b0\u1ee3c ng\u1ee5y trang d\u01b0\u1edbi d\u1ea1ng th\u00f4ng tin h\u1ee3p ph\u00e1p.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng Ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng<\/h2>\n<h3>Khai th\u00e1c:<\/h3>\n<p>Ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1eadn d\u1ee5ng \u0111\u1ec3:<\/p>\n<ul>\n<li>Ph\u00e1t t\u00e1n ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i ho\u1eb7c t\u1eadp l\u1ec7nh \u0111\u1ed9c h\u1ea1i t\u1edbi nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<li>\u0102n c\u1eafp th\u00f4ng tin nh\u1ea1y c\u1ea3m, ch\u1eb3ng h\u1ea1n nh\u01b0 th\u00f4ng tin \u0111\u0103ng nh\u1eadp ho\u1eb7c d\u1eef li\u1ec7u t\u00e0i ch\u00ednh.<\/li>\n<li>Ti\u1ebfn h\u00e0nh c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o v\u00e0 chuy\u1ec3n h\u01b0\u1edbng ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn c\u00e1c trang web gi\u1ea3 m\u1ea1o.<\/li>\n<li>Th\u1ef1c hi\u1ec7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 (DoS) b\u1eb1ng c\u00e1ch \u0111\u1ea7u \u0111\u1ed9c c\u00e1c trang l\u1ed7i ho\u1eb7c n\u1ed9i dung n\u1eb7ng v\u1ec1 t\u00e0i nguy\u00ean.<\/li>\n<\/ul>\n<h3>Nh\u1eefng th\u00e1ch th\u1ee9c v\u00e0 gi\u1ea3i ph\u00e1p:<\/h3>\n<ul>\n<li><strong>Kh\u00f3 ph\u00e1t hi\u1ec7n<\/strong>: C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u1ea7u \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web c\u00f3 th\u1ec3 kh\u00f3 ph\u00e1t hi\u1ec7n do t\u00ednh ch\u1ea5t b\u00ed m\u1eadt c\u1ee7a ch\u00fang. Vi\u1ec7c tri\u1ec3n khai c\u00e1c c\u01a1 ch\u1ebf gi\u00e1m s\u00e1t v\u00e0 ghi nh\u1eadt k\u00fd m\u1ea1nh m\u1ebd c\u00f3 th\u1ec3 gi\u00fap x\u00e1c \u0111\u1ecbnh h\u00e0nh vi b\u1ed9 nh\u1edb \u0111\u1ec7m \u0111\u00e1ng ng\u1edd.<\/li>\n<li><strong>V\u1ec7 sinh ti\u00eau \u0111\u1ec1<\/strong>: M\u00e1y ch\u1ee7 web ph\u1ea3i v\u1ec7 sinh c\u00e1c ti\u00eau \u0111\u1ec1 \u0111\u1ebfn v\u00e0 tr\u00e1nh s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa h\u1ec7 th\u1ed1ng giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng v\u00e0 h\u1ec7 th\u1ed1ng ph\u1ee5 tr\u1ee3.<\/li>\n<li><strong>Ch\u00ednh s\u00e1ch b\u1ed9 nh\u1edb \u0111\u1ec7m an to\u00e0n<\/strong>: Vi\u1ec7c tri\u1ec3n khai c\u00e1c ti\u00eau \u0111\u1ec1 ki\u1ec3m so\u00e1t b\u1ed9 nh\u1edb \u0111\u1ec7m an to\u00e0n c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c n\u1ed7 l\u1ef1c \u0111\u1ea7u \u0111\u1ed9c.<\/li>\n<li><strong>Ki\u1ec3m to\u00e1n th\u01b0\u1eddng xuy\u00ean<\/strong>: Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 c\u1ea5u h\u00ecnh b\u1ed9 nh\u1edb \u0111\u1ec7m v\u00e0 giao th\u1ee9c b\u1ea3o m\u1eadt c\u00f3 th\u1ec3 gi\u00fap x\u00e1c \u0111\u1ecbnh v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c l\u1ed7 h\u1ed5ng ti\u1ec1m \u1ea9n.<\/li>\n<\/ul>\n<h2>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh kh\u00e1c v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1 d\u01b0\u1edbi d\u1ea1ng b\u1ea3ng v\u00e0 danh s\u00e1ch<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u0111\u1eb7c tr\u01b0ng<\/th>\n<th>Ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web<\/th>\n<th>T\u1eadp l\u1ec7nh ch\u00e9o trang (XSS)<\/th>\n<th>Ti\u00eam SQL<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Ki\u1ec3u t\u1ea5n c\u00f4ng<\/strong><\/td>\n<td>Thao t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng b\u1ed9 nh\u1edb \u0111\u1ec7m<\/td>\n<td>Ti\u00eam c\u00e1c t\u1eadp l\u1ec7nh \u0111\u1ed9c h\u1ea1i<\/td>\n<td>Khai th\u00e1c l\u1ed7 h\u1ed5ng SQL<\/td>\n<\/tr>\n<tr>\n<td><strong>S\u1ef1 va ch\u1ea1m<\/strong><\/td>\n<td>Cung c\u1ea5p n\u1ed9i dung \u0111\u1ed9c h\u1ea1i<\/td>\n<td>T\u1ea5n c\u00f4ng d\u1ef1a tr\u00ean tr\u00ecnh duy\u1ec7t<\/td>\n<td>Thao t\u00e1c d\u1eef li\u1ec7u c\u01a1 s\u1edf d\u1eef li\u1ec7u<\/td>\n<\/tr>\n<tr>\n<td><strong>M\u1ee5c ti\u00eau<\/strong><\/td>\n<td>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng b\u1ed9 nh\u1edb \u0111\u1ec7m web<\/td>\n<td>\u1ee8ng d\u1ee5ng web v\u00e0 ng\u01b0\u1eddi d\u00f9ng<\/td>\n<td>C\u01a1 s\u1edf d\u1eef li\u1ec7u \u1ee9ng d\u1ee5ng web<\/td>\n<\/tr>\n<tr>\n<td><strong>ph\u01b0\u01a1ng th\u1ee9c v\u1eadn chuy\u1ec3n<\/strong><\/td>\n<td>Th\u00f4ng qua truy xu\u1ea5t b\u1ed9 \u0111\u1ec7m<\/td>\n<td>\u0110\u01b0\u1ee3c nh\u00fang trong c\u00e1c trang web<\/td>\n<td>\u0110\u01b0\u1ee3c \u0111\u01b0a v\u00e0o th\u00f4ng qua c\u00e1c tr\u01b0\u1eddng \u0111\u1ea7u v\u00e0o<\/td>\n<\/tr>\n<tr>\n<td><strong>Chi\u1ebfn l\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u<\/strong><\/td>\n<td>Ch\u00ednh s\u00e1ch b\u1ed9 nh\u1edb \u0111\u1ec7m ph\u00f9 h\u1ee3p<\/td>\n<td>X\u00e1c th\u1ef1c \u0111\u1ea7u v\u00e0o v\u00e0 v\u1ec7 sinh<\/td>\n<td>B\u00e1o c\u00e1o v\u00e0 b\u1ed9 l\u1ecdc \u0111\u00e3 chu\u1ea9n b\u1ecb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn ng\u1ed9 \u0111\u1ed9c b\u1ed9 nh\u1edb \u0111\u1ec7m Web<\/h2>\n<p>Khi c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n, m\u1ee9c \u0111\u1ed9 tinh vi c\u1ee7a c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u1ea7u \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web c\u0169ng t\u0103ng theo. \u0110\u1ec3 ch\u1ed1ng l\u1ea1i nh\u1eefng m\u1ed1i \u0111e d\u1ecda n\u00e0y, vi\u1ec7c li\u00ean t\u1ee5c nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c c\u01a1 ch\u1ebf b\u1ed9 nh\u1edb \u0111\u1ec7m web ti\u00ean ti\u1ebfn, c\u00e1c giao th\u1ee9c b\u1ea3o m\u1eadt v\u00e0 k\u1ef9 thu\u1eadt ph\u00e1t hi\u1ec7n s\u1ebd r\u1ea5t quan tr\u1ecdng. Ngo\u00e0i ra, vi\u1ec7c \u00e1p d\u1ee5ng tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o v\u00e0 thu\u1eadt to\u00e1n h\u1ecdc m\u00e1y \u0111\u1ec3 ph\u00e1t hi\u1ec7n h\u00e0nh vi b\u1ed9 \u0111\u1ec7m b\u1ea5t th\u01b0\u1eddng c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng gi\u1ea3m thi\u1ec3u m\u1ed1i \u0111e d\u1ecda.<\/p>\n<h2>C\u00e1ch m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean quan \u0111\u1ebfn vi\u1ec7c \u0111\u1ea7u \u0111\u1ed9c b\u1ed9 nh\u1edb \u0111\u1ec7m Web<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 v\u00f4 t\u00ecnh l\u00e0m tr\u1ea7m tr\u1ecdng th\u00eam nguy c\u01a1 ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web. Ch\u00fang \u0111\u00f3ng vai tr\u00f2 trung gian gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u00e1y ch\u1ee7 web, c\u00f3 kh\u1ea3 n\u0103ng l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m c\u00e1c ph\u1ea3n h\u1ed3i t\u1eeb ph\u00eda h\u1ecd. N\u1ebfu m\u00e1y ch\u1ee7 proxy kh\u00f4ng x\u00e1c th\u1ef1c v\u00e0 v\u1ec7 sinh \u0111\u00fang c\u00e1ch c\u00e1c ti\u00eau \u0111\u1ec1 \u0111\u1ebfn, n\u00f3 c\u00f3 th\u1ec3 l\u01b0u v\u00e0o b\u1ed9 \u0111\u1ec7m c\u00e1c ph\u1ea3n h\u1ed3i b\u1ecb nhi\u1ec5m \u0111\u1ed9c, d\u1eabn \u0111\u1ebfn vi\u1ec7c ph\u00e1t t\u00e1n n\u1ed9i dung \u0111\u1ed9c h\u1ea1i cho nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng. L\u00e0 nh\u00e0 cung c\u1ea5p m\u00e1y ch\u1ee7 proxy uy t\u00edn, OneProxy \u01b0u ti\u00ean c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt, bao g\u1ed3m x\u00e1c th\u1ef1c ti\u00eau \u0111\u1ec1, \u0111\u1ec3 gi\u1ea3m thi\u1ec3u nh\u1eefng r\u1ee7i ro \u0111\u00f3.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 vi\u1ec7c \u0111\u1ea7u \u0111\u1ed9c b\u1ed9 nh\u1edb \u0111\u1ec7m Web, h\u00e3y xem x\u00e9t vi\u1ec7c kh\u00e1m ph\u00e1 c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n<ol>\n<li>Ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web OWASP: <a href=\"https:\/\/owasp.org\/www-project-web-cache-poisoning\/\" target=\"_new\" rel=\"noopener nofollow\">https:\/\/owasp.org\/www-project-web-cache-poisoning\/<\/a><\/li>\n<li>Cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o b\u1ed9 \u0111\u1ec7m web: <a href=\"https:\/\/portswigger.net\/research\/practical-web-cache-poisoning\" target=\"_new\" rel=\"noopener nofollow\">https:\/\/portswigger.net\/research\/practical-web-cache-poisoning<\/a><\/li>\n<li>Ng\u1ed9 \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web - M\u1ed9t v\u1ea5n \u0111\u1ec1 b\u1ea3o m\u1eadt web ph\u1ed5 bi\u1ebfn: <a href=\"https:\/\/www.cloudflare.com\/en-in\/learning\/security\/threats\/web-cache-poisoning\/\" target=\"_new\" rel=\"noopener nofollow\">https:\/\/www.cloudflare.com\/en-in\/learning\/security\/threats\/web-cache-poisoning\/<\/a><\/li>\n<\/ol>\n<p>L\u00e0 nh\u00e0 cung c\u1ea5p m\u00e1y ch\u1ee7 proxy h\u00e0ng \u0111\u1ea7u, OneProxy v\u1eabn cam k\u1ebft th\u00f4ng b\u00e1o cho ng\u01b0\u1eddi d\u00f9ng v\u1ec1 c\u00e1c m\u1ed1i \u0111e d\u1ecda ti\u1ec1m \u1ea9n nh\u01b0 \u0111\u1ea7u \u0111\u1ed9c b\u1ed9 \u0111\u1ec7m web v\u00e0 cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt m\u1ea1nh m\u1ebd \u0111\u1ec3 b\u1ea3o v\u1ec7 tr\u1ea3i nghi\u1ec7m tr\u1ef1c tuy\u1ebfn c\u1ee7a h\u1ecd. H\u00e3y c\u1ea3nh gi\u00e1c, lu\u00f4n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7!<\/p>","protected":false},"featured_media":479636,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-479635","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Web Cache Poisoning: Understanding the Threat and Mitigation Strategies<\/mark>","faq_items":[{"question":"What is Web cache poisoning?","answer":"<p>Web cache poisoning is a sophisticated cyber attack that manipulates web caching systems to deliver malicious content to unsuspecting users. Attackers exploit vulnerabilities in the HTTP request and response flow to inject harmful payloads into cached responses, posing serious risks to website visitors and the integrity of online services.<\/p>"},{"question":"How did Web cache poisoning originate?","answer":"<p>Web cache poisoning techniques were first discussed in a research paper titled \"Sliding Window Attacks\" at the Black Hat Europe Conference in 2008. Since then, the threat has evolved, becoming a prominent and challenging issue in the cybersecurity landscape.<\/p>"},{"question":"How does Web cache poisoning work?","answer":"<p>Web cache poisoning involves a multi-step process. Attackers send manipulated HTTP requests, exploiting inconsistencies between front-end and back-end systems. By tampering with cache key generation, they trick caching mechanisms into storing poisoned content. When other users request the same content, the cache serves the malicious payload, infecting their browsers or causing other harmful actions.<\/p>"},{"question":"What are the key features of Web cache poisoning?","answer":"<p>Key features of Web cache poisoning include its reliance on caching mechanisms, header manipulation, and its covert nature, making it challenging to detect.<\/p>"},{"question":"What types of Web cache poisoning exist?","answer":"<p>There are several types of Web cache poisoning attacks:<\/p><ol><li>HTTP Request Smuggling: Exploits differences in header interpretation to deceive servers.<\/li><li>Cache Key Manipulation: Alters cache key generation to store malicious content.<\/li><li>Parameter Pollution: Injects malicious parameters into URLs to taint cached responses.<\/li><li>ESI Injection: Exploits Edge Side Includes to inject harmful code into cached pages.<\/li><li>Content Spoofing: Tampering cached content to deliver malicious data disguised as legitimate information.<\/li><\/ol>"},{"question":"How can Web cache poisoning be used, and what are the problems and solutions?","answer":"<p>Web cache poisoning can be utilized to spread malware, steal sensitive data, conduct phishing attacks, or even perform DoS attacks. Detecting these attacks can be challenging, but implementing secure caching policies, header sanitization, and regular audits can mitigate the risks.<\/p>"},{"question":"How does Web cache poisoning compare to other threats like XSS and SQL injection?","answer":"<p>Web cache poisoning differs from Cross-Site Scripting (XSS) and SQL Injection in its attack type, target, delivery method, and mitigation strategy. Each threat exploits different vulnerabilities and poses unique risks to web applications and users.<\/p>"},{"question":"What are the perspectives and future technologies related to Web cache poisoning?","answer":"<p>As technology evolves, web cache poisoning attacks may become more sophisticated. Research and development of advanced caching mechanisms, security protocols, and detection techniques will play a crucial role in countering these threats, along with leveraging AI and machine learning for detection.<\/p>"},{"question":"How can proxy servers be associated with Web cache poisoning?","answer":"<p>Proxy servers can inadvertently contribute to Web cache poisoning risks if not properly configured. As intermediaries between users and web servers, they can cache poisoned responses and deliver malicious content to multiple users. To prevent this, reputable proxy server providers like OneProxy implement robust security measures, such as header validation, to minimize risks.<\/p>"},{"question":"Where can I find more information about Web cache poisoning?","answer":"<p>For further information on Web cache poisoning and related security measures, check out the following links:<\/p><ol><li>OWASP Web Cache Poisoning: <a href=\"https:\/\/owasp.org\/www-project-web-cache-poisoning\/\" target=\"_new\">https:\/\/owasp.org\/www-project-web-cache-poisoning\/<\/a><\/li><li>The Web Cache Deception Attack: <a href=\"https:\/\/portswigger.net\/research\/practical-web-cache-poisoning\" target=\"_new\">https:\/\/portswigger.net\/research\/practical-web-cache-poisoning<\/a><\/li><li>Web Cache Poisoning - A Common Web Security Issue: <a href=\"https:\/\/www.cloudflare.com\/en-in\/learning\/security\/threats\/web-cache-poisoning\/\" target=\"_new\">https:\/\/www.cloudflare.com\/en-in\/learning\/security\/threats\/web-cache-poisoning\/<\/a><\/li><\/ol><p>Stay informed and protected with our comprehensive article and expert insights at OneProxy!<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/479635","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\/479635\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/479636"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=479635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}