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Table of Contents
Airolib-ng
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This functionality will be available in a future release. It is NOT available currently.
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Description
Airolib-ng is a tool for the aircrack-ng suite to store and manage essid and password lists, compute their Pairwise Master Keys (PMKs) and use them in WPA/WPA2 cracking. The program uses the lightweight SQLite3 database as the storage mechanism which is available on most platforms. The SQLite3 database was selected taking in consideration platform availability plus management, memory and disk overhead.
WPA/WPA2 cracking involves calculating the pairwise master key, from which the private transient key (PTK) is derived. Using the PTK, we can compute the frame message identity code (MIC) for a given packet and will potentially find the MIC to be identical to the packet's thus the PTK was correct therefore the PMK was correct as well.
Calculating the PMK is very slow since it uses the pbkdf2 algorithm. Yet the PMK is always the same for a given ESSID and password combination. This allows us to pre-compute the PMK for given combinations and speed up cracking the wpa/wpa2 handshake. Tests on have shown that using this technique in aircrack-ng can check more than 30,000 passwords per second using pre-computed PMK tables.
Computing the PMK is still required, yet we can:
- Precompute it for later and/or shared use.
- Use distributed machines to generate the PMK and use their value elsewhere.
To learn more about WPA/WPA2:
- See the WPA/WPA2 Information section on the wiki links page.
To learn more about coWPAtty:
As stated above, this program requires the SQLite3 database environment. You must be running version 3.3.17 or above. You may obtain the latest version from the SQLite download page.
Usage
Usage: airolib <database> <operation> [options]
Where:
- database is name of the database file. Optionally specify the full path.
- operation specifies the action you would like taken on the database. See below for a complete list.
- options may be required depending on the operation specified
Here are the valid operations:
- init - Create a new database file and it's table layout.
- stats - Output some information about the database.
- sql {sql} - Execute the specified SQL statement.
- clean [all] - Perform steps to clean the database from old junk. The option 'all' will also reduce file size if possible and run an integrity check.
- batch - Start batch-processing all combinations of ESSIDs and passwords. This must be run prior to using the database within aircrack-ng or after you have added additional SSIDs or passwords.
- verify [all] - Verify a set of randomly chosen PMKs. If the option 'all' is given, all(!) PMKs in the database are verified and the incorrect ones are deleted.
- export cowpatty {essid} {file} - Export to a cowpatty file.
- import cowpatty {file} - Import a cowpatty file.
- import ascii {essid|passwd} {file} - Import a text flat file as a list of either ESSIDs or passwords. This file must contain one essid or password per line. Lines should be terminated with line feeds. Meaning press “enter” at the end of each line when entering the values.
Usage Examples
Here are usage examples for each operation.
Init Operation
You must be in the directory where you want the database created or specify the fully qualified path name.
Enter:
airolib-ng testdb init
Where:
- testdb is the name of the database to be created.
- init is the operation to be performed.
The system does not respond with any output. You can verify the database was created by doing a directly listing.
Status Operation
Enter:
airolib-ng testdb stats
Where:
- testdb is the name of the database to be created.
- stats is the operation to be performed.
The system responds:
statsThere are 2 ESSIDs and 232 passwords in the database. 464 out of 464 possible combinations have been computed (100%). ESSID Priority Done Harkonen 64 100.0 teddy 64 100.0
SQL Operation
The following example will give the SSID “VeryImportantESSID” maximum priority.
Enter:
airolib-ng testdb sql 'update essid set prio=(select min(prio)-1 from essid) where essid="VeryImportantESSID";'
The system responds:
update essid set prio=(select min(prio)-1 from essid) where essid="VeryImportantESSID"; Query done. 1 rows affected.
The following example will look for very important patterns in the pmk.
Enter:
airolib-ng testdb sql 'select hex(pmk) from pmk where hex(pmk) like "%DEADBEEF%"'
The system responds:
hex(pmk) BF3F122D3CE9ED6C6E7E1D7D13505E0A41EC4C5A3DEADBEEFFEFF597387AFCE3
Clean Operation
To do a basic cleaning, enter:
airolib-ng testdb clean
The system responds:
cleanDeleting invalid ESSIDs and passwords... Deleting unreferenced PMKs... Analysing index structure... Done.
To do a basic cleaning, reduce the file size if possible and run an integrity check., enter:
airolib-ng testdb clean all
The system responds:
cleanDeleting invalid ESSIDs and passwords... Deleting unreferenced PMKs... Analysing index structure... Vacuum-cleaning the database. This could take a while... Checking database integrity... integrity_check ok Query done. 2 rows affected. Done.
Batch Operation
Enter:
airolib-ng testdb batch
The system responds:
Computed 464 PMK in 10 seconds (46 PMK/s, 0 in buffer). No free ESSID found. Will try determining new ESSID in 5 minutes...
IMPORTANT: You must press control-C to terminate this program once it is finished or it will continue to run indefinitely.
Verify Operation
To verify a 1000 random PMKs, enter:
airolib-ng testdb verify
The system responds:
verifyChecking ~10.000 randomly chosen PMKs... ESSID CHECKED STATUS Harkonen 233 OK teddy 233 OK
To verify all PMKs, enter:
airolib-ng testdb verify all
The system responds:
verifyChecking all PMKs. This could take a while... ESSID PASSWORD PMK_DB CORRECT
Export cowpatty Operation
Enter:
airolib-ng testdb export cowpatty test cowexportoftest
The system responds:
exportExporting... Done.
Import cowpatty Operation
Enter:
airolib-ng testdb import cowpatty cowexportoftest
The system responds:
importReading header... Reading... Updating references... Writing...
Import ascii Operation
To import an ascii list of SSIDs, enter:
airolib-ng testdb import ascii essid ssidlist.txt
Where:
- testdb is the name of the database to be updated and this must already exist.
- import ascii is the operation to be performed.
- essid indicates it is a list of SSIDs.
- ssidlist.txt is the file name containing the SSIDs. One per line. It can optionally be fully qualified.
The system responds:
importReading... Writing... Done.
To import an ascii list of passwords, enter:
airolib-ng testdb import ascii passwd password.lst
Where:
- testdb is the name of the database to be updated and this must already exist.
- import ascii is the operation to be performed.
- passwd indicates it is a list of passwords.
- password.list is the file name. One per line. It can optionally be fully qualified.
The system responds:
importReading... Writing... read, 1814 invalid lines ignored. Done.
Aircrack-ng Usage Example
The ultimate objective is to speed up WPA/WPA2 cracking under aircrack-ng. To use the tables you have built using airolib-ng then use the “-r” option to specify the database containing the pre-calculated PMKs.
Enter:
aircrack-ng -r testdb wpa2.eapol.cap
Where:
- -r specifies that a pre-computed PMK database will be used.
- testdb is the name of the database file and may optionally be fully qualified.
- wpa2.eapol.cap is capture file containing the WPA/WPA2 handshake.
Note: All the other standard options which are applicable to WPA/WPA2 may also be used. This is a very limited example.
Usage Tips
To test the tool yourself…
- get yourself the sqlite3 library and headers
- get yourself the 1.0dev version of the aircrack-ng suite
- create a new database file with “airolib-ng testdb init”
- import some essid, e.g. “echo Harkonen | airolib-ng testdb import ascii essid -”
- import some passwords, e.g. “echo 12345678 | airolib-ng testdb import ascii passwd -”
- start the batch process (“airolib-ng testdb batch”), wait for it to run out of work, kill it
- crack your WPA/WPA2 handshake, e.g. “aircrack-ng -r testdb -e Harkonen -q wpa2.eapol.cap”
Usage Troubleshooting
Although this is not a usage troublshooting tip, it is a common problem during the compilation of the 1.0dev version. As a reminder, SQLite must be version 3.3.17 or above. This is the compile error you receive when your version of SQLite is less then the requirement:
gcc -g -W -Wall -Werror -O3 -D_FILE_OFFSET_BITS=64 -D_REVISION=`../evalrev` -I/usr/local/include -Iinclude -DHAVE_SQLITE -c -o airolib-ng.o airolib-ng.c airolib-ng.c: In function `sql_prepare': airolib-ng.c:129: warning: implicit declaration of function `sqlite3_prepare_v2' make[1]: *** [airolib-ng.o] Error 1 make[1]: Leaving directory `/root/1.0-dev/src' make: *** [all] Error 2
