多选题 : 某网站登录验证逻辑:从数据库查询对应用户名和密码,存在返回值即验证通过。以下数据库SQL注入语句符合登录成功逻辑且一定成功的是:()
(A)SELECT * FROM user WHERE username = ' 1' OR '1' = '1' AND password = ''
(B)SELECT * FROM user WHERE username = '1' OR '1' = '1' # ' AND password = ''
(C)SELECT * FROM user WHERE username = '1' OR '1' = '1' AND password = '1' OR '1' = '1'
(D)SELECT * FROM user WHERE username = '1' AND password = '' OR '1' = '1'
(E)SELECT * FROM user WHERE username = '1' AND password = '1' #
参考答案
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