sql注入SQL注入的相关内容

文章 2023-07-03 来自：开发者社区

天天听SQL注入，SQL注入到底是怎么注入的？

天天说SQL注入，写程序的时候要如何如何避免SQL注入，有多少人根本都不知道SQL注入是怎么注入的？下面是SQL注入的一个简单实现步骤首先我自己简单写了一个有SQL注入漏洞的接口用来测试第一步：判断接口是否存在数据库注入漏洞使用and 1=1，使条件成立，看接口是不是还可以正常返回数据使用and 1=2，使条件不成立，看接口是不是不返回数据了，或者报错上面两个步骤达到预期结果，就说明这个接口存....

文章 2022-01-16 来自：开发者社区

SQL注入(SQL注入(SQLi)攻击)攻击-联合注入

页面有显示位时 , 可用联合注入本次以 SQLi 第一关为案例第一步,判断注入类型参数中添加单引号 ' , 如果报错,说明后端没有过滤参数 , 即存在注入?id=1'从数据库的报错中我们可得知 , 最外边的一对单引号是错误提示自带的,我们不用管我们输入的1 , 两边的一对单引号 , 是SQL拼接参数时使用的而1 右边的单引号 , 是我们自己输入的也就是说 , 后台SQL中拼接参数时 , 使用....

文章 2022-01-16 来自：开发者社区

SQL注入(SQL注入(SQLi)攻击)攻击-注入点

SQL注入被称为漏洞之王 , 是最常用的漏洞之一 , 其中PHP在这方面的贡献最大SQL注入原理用户在参数中插入恶意的SQL语句 , 破坏原有的SQL语法结构 , 从而执行攻击者的操作SQL注入点注入点可分为两大类: 数字型和字符型其中字符型又可以细分为单引号字符型 , 双引号字符型 , 单/双引号+括号的字符型数字型注入SQL语句拼接参数时 , 直接拼接参数本身 , 格式如下SELEC....

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更新时间 2024-05-01 04:13:42

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