Hacks

sqlmap

Sqlmap ist dafür da, um Server auf mögliche SQL Injection Sicherheitslücken zu prüfen. Es kann vor Angreifer schützen falls man seine Website auf solche Lücken prüft.

Mit sqlmap kann verschiedene Server Adressen auf Lücken untersuchen und Datenbankinformationen auszulesen. Jedoch kann man da nicht irgendeine Hauptdomain nehmen und das Gefühl haben, da tut sich was.

Man braucht dazu die URL des Servers die einen Zugang ermöglichen könnte und Code eingeschleusst werden kann. Das einschleusen und die Ergebnisse liefert sqlmap dann zurück. Dies ist wesentlich leichter, als es manuell von Hand zu versuchen.

Sqlmap kan auf jedem Linux System ausgeführt oder installiert werden.

Es ist sehr einfach aufgebaut und für Anfänger gut geeignet.

sqlmap -h (für die Hilfe)

sqlmap -u URL (für eine einfache Abfrage)

Vielfach sind es die GET Parameter die manipuliert werden um die Datenbankinformationen zu erhalten

root@kali:~# sqlmap --help
        ___
       __H__
 ___ ___[)]_____ ___ ___  {1.2.11#stable}
|_ -| . [(]     | .'| . |
|___|_  [,]_|_|_|__,|  _|
      |_|V          |_|   http://sqlmap.org

Usage: python sqlmap [options]

Options:
  -h, --help            Show basic help message and exit
  -hh                   Show advanced help message and exit
  --version             Show program's version number and exit
  -v VERBOSE            Verbosity level: 0-6 (default 1)

  Target:
    At least one of these options has to be provided to define the
    target(s)

    -u URL, --url=URL   Target URL (e.g. "http://www.site.com/vuln.php?id=1")
    -g GOOGLEDORK       Process Google dork results as target URLs

  Request:
    These options can be used to specify how to connect to the target URL

    --data=DATA         Data string to be sent through POST (e.g. "id=1")
    --cookie=COOKIE     HTTP Cookie header value (e.g. "PHPSESSID=a8d127e..")
    --random-agent      Use randomly selected HTTP User-Agent header value
    --proxy=PROXY       Use a proxy to connect to the target URL
    --tor               Use Tor anonymity network
    --check-tor         Check to see if Tor is used properly

  Injection:
    These options can be used to specify which parameters to test for,
    provide custom injection payloads and optional tampering scripts

    -p TESTPARAMETER    Testable parameter(s)
    --dbms=DBMS         Force back-end DBMS to provided value

  Detection:
    These options can be used to customize the detection phase

    --level=LEVEL       Level of tests to perform (1-5, default 1)
    --risk=RISK         Risk of tests to perform (1-3, default 1)

  Techniques:
    These options can be used to tweak testing of specific SQL injection
    techniques

    --technique=TECH    SQL injection techniques to use (default "BEUSTQ")

  Enumeration:
    These options can be used to enumerate the back-end database
    management system information, structure and data contained in the
    tables. Moreover you can run your own SQL statements

    -a, --all           Retrieve everything
    -b, --banner        Retrieve DBMS banner
    --current-user      Retrieve DBMS current user
    --current-db        Retrieve DBMS current database
    --passwords         Enumerate DBMS users password hashes
    --tables            Enumerate DBMS database tables
    --columns           Enumerate DBMS database table columns
    --schema            Enumerate DBMS schema
    --dump              Dump DBMS database table entries
    --dump-all          Dump all DBMS databases tables entries
    -D DB               DBMS database to enumerate
    -T TBL              DBMS database table(s) to enumerate
    -C COL              DBMS database table column(s) to enumerate

  Operating system access:
    These options can be used to access the back-end database management
    system underlying operating system

    --os-shell          Prompt for an interactive operating system shell
    --os-pwn            Prompt for an OOB shell, Meterpreter or VNC

  General:
    These options can be used to set some general working parameters

    --batch             Never ask for user input, use the default behavior
    --flush-session     Flush session files for current target

  Miscellaneous:
    --sqlmap-shell      Prompt for an interactive sqlmap shell
    --wizard            Simple wizard interface for beginner users

sqlmap Beispiel

root@kali:~# sqlmap -u "http://192.168.1.250/?p=1&forumaction=search" --dbs
        ___
       __H__
 ___ ___[)]_____ ___ ___  {1.2.11#stable}
|_ -| . ["]     | .'| . |
|___|_  ["]_|_|_|__,|  _|
      |_|V          |_|   http://sqlmap.org

[!] legal disclaimer: Usage of sqlmap for attacking targets without prior mutual consent is illegal. It is the end user's responsibility to obey all applicable local, state and federal laws. Developers assume no liability and are not responsible for any misuse or damage caused by this program

[*] starting at 13:37:00

[13:37:00] [INFO] testing connection to the target URL
Marc Disch Blog