Skip to main content

Programatically configure Security Policies

Alsalam alikom wa ra7mat Allah wa barakatoh

Recently, we have ran into a problem when we had to modify Install Shield script to programatically configure some security policies while being installed. We thought this information may come in handy for some of you. However, I know not much people will be interested in such a detailed problem...

Our deliverables will be:
- a .inf file a security template file that contains the proposed configurations
- a .sdb file (Security DataBase) this is able to inspect the client policies and modify/configure it.
- a .rul file (Install Shield Script) that is able to install such configurations

Let's start one by one,
  1. Open Start Menu -> Run -> MMC and hit enter
  2. File menu -> Add/Remove Snap-in
  3. Press Add and choose "Security Configuration and Analysis" then hit Add
  4. Choose "Security Templates" and hit Add... then Ok to close the main dialog
  5. Expand Security Templates and Add a new template as in the picture

  6. Choose a name (Tmpl Trial for example) and description then hit okay
  7. Now expand the newly created template, and configure it as you wish.

  8. Right click on the template, save as and choose any place you want to save it in (by default a file will have been created for you)
  9. Right click on the Security Configuration and Analysis, choose Open Database
  10. Type a name for the data base you want to create, let's call it Tmpl Trial DB
  11. It will ask you to pick a template for it, choose the .inf file you have saved earlier (in step 8).
  12. bingo, just close the mmc and don't save the Console1 if it asked you to :)

If you didn't change the default paths, you will find those files in My DocumentsSecurity
Now we've created the .inf and .sdb files... the only remaining task is to write the script that will apply the configurations

For those not familier with IShield script, what we basically want to do is to execute this command:

C:WindowsSystem32secedit.exe /configure /db "C:....Tmpl Trial DB.sdb"

There are a couple of things we don't know about,
  1. The path of the Windows Directory... you can replace that part with WINDIR macro
  2. The path of the .sdb file, you can make sure it's being copied to the installation directory, and then you can use INSTALLDIR macro

So, here is a sample script:
szApplication = WINDIR ^ "system32\secedit.exe";
szParameters = "/configure /db "" + INSTALLDIR + "Tmpl Trial DB.sdb"";
LaunchApp(szApplication, szParameters);

N.B. Of course to run the installer we need a user who has privileges to configure the security policy.

That's all...

Happy coding :)

Alsalam alikom wa ra7mat Allah wa barakatoh

Comments

  1. you were tagged by me to say 8 facts no one knows about you and tag another 8 of your friends

    ReplyDelete

Post a Comment

Popular posts from this blog

Exploiting Double Free Vulnerabilities...

Alsalam alikom wa ra7mat Allah wa barakatoh



Huh!! that's what I said when I first saw that title... but let me explain...


Double Free means that you try to free a pointer two times (which is logically can't work).
Actually windows SP2 and later (even Vista) this can be done (in somehow) and can actually corrupt the heap (Vista will shout at your face if u did) and that can make you able to use and browse the heap as you want..

Facts to know about how Windows frees your pointers:
- There is something called Lookaside buffer (fast access, small size) and another thing is FreeList(slower access, the whole memory).
- Chunk is an object of the DataStructure that holds mainly 2 things: pointer to where the next free Chunk is and pointer to the previous free one (think about it like a node in a linked list)
- The first 4 bytes of the Chunk is the BLink (BackLink) and the second 4 bytes is the FLink
- delete ptr1;
delete ptr2;
Windows takes your Chunk (for ptr1) and puts it in the Lookaside s…

Windows7 adds Math Input Panel

Alsalam alikom wa ra7mat Allah wa barakatoh…I was reading a windows team post about Input Panels improvements in Windows7 [here]. When at the end I saw a very interesting –intuitive if you wish- new thing… which is, as you guessed, the Math Input Panel…Yes, that crappy font is mine… I “drew” that by mouse as I don’t have a tablet pen/pc.You can then paste it directly into word and it’ll recognize it as an editable equation…During my tests, the output panel (the top part) hanged, but I liked that the drawing panel was still responsive and I could still write/erase… till the top one started to respond again…One other thing to know, after you click Insert (that button down there) it copies the equation in MathML [Wikipedia link] format.. which is a standard way of representing equations and hence any application that recognizes the format can insert it not as an image but as a nice editable equation…If you think it recognized something wrong, you can click “Select and Correct” then draw …

Visual Studio 2008 Not saving changes or project properties?

Alsalam alikom wa ra7mat Allah wa barakatoh (Peace upon you)I’ve recently ran into problems with VS 2008. Summarized here:When you try to edit the project properties (specially C++ projects) you are faced with a little nice message saying “Exception from HRESULT: 0xF9F0F308”. Sometimes when you are editing a file (specially large ones), VS doesn’t recognize you’ve made changes (ie doesn’t display that ‘*’ in the files tabs) hence, when you save, nothing actually gets saved. For those 2 problems, a friend explained the problem and a work around (till they officially release a fix)…Open up a Visual Studio 2008 Command Prompt Run cd "C:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\IDE" Make a backup copy of devenv.exe in case something does not work right.
ie. copy devenv.exe devenv.exe.bak Run editbin /largeaddressaware:no devenv.exe Happy VSing… :)