RegOpenCurrentUser(KEY_WRITE) on newly created user - c

After i successfully create a new user, add user to built-in admins group, i would like to edit the newly created user's registry (this program is an elevated-as-admin program). I called NetUserAdd(), NetLocalGroupAddMembers(), LogonUser(), and then, finally LoadUserProfile() so the user's directory exists.
Excuse the sloppy code, but this is what I am doing after that:
DuplicateTokenEx(hToken,TOKEN_ALL_ACCESS,&sa,SecurityImpersonation,TokenPrimary,&hNewToken);
ImpersonateLoggedOnUser(hNewToken);
HKEY hKey;
LSTATUS stat = RegOpenCurrentUser(KEY_READ|KEY_WRITE, &hKey);
// stat is 5 (ACCESS_DENIED) when KEY_WRITE is added, it
// returns 0 (ERROR_SUCCESS) when it's just KEY_READ
RegCloseKey(hKey);
RevertToSelf();
CloseHandle(hNewToken);
The error is on the RegOpenCurrentUser() line. It errors out when I ask to write to that user's HKU registry. It works perfectly fine if I use just KEY_READ
Is this even possible what I am trying to do? Is the user's registry hive even created yet? Or does the user have to physically sign on to create it?
Ultimately what i would want to do is create GPO's for the new user.

If you already have the user profile loaded with LoadUserProfile(), you don't really need to use RegOpenCurrentUser() at all. You can instead use the hProfile field of the PROFILEINFO that LoadUserProfile() returns:
hProfile
Type: HANDLE
A handle to the HKEY_CURRENT_USER registry subtree.
...
When the LoadUserProfile call returns successfully, the hProfile member receives a registry key handle opened to the root of the user's subtree, opened with full access (KEY_ALL_ACCESS).

Related

LDAP Error: The user has insufficient access rights. : LdapErr: DSID-0C09099D, comment: Error processing control,

I want to get incremental changes from Active Directory using C# and for that I am trying to build a solution as mentioned in the following article (using DirSync Control).
https://learn.microsoft.com/en-us/windows/win32/ad/polling-for-changes-using-the-dirsync-control
However, I am facing following problems:
When using following code, I am getting exception that The user has insufficient access rights. The user is part of administrators group.
What more permission needs to be given to that account? And how?
LdapConnection connection = new LdapConnection("adfs.fed.zzz.com");
connection.SessionOptions.ProtocolVersion = 3;
connection.Credential = new System.Net.NetworkCredential("adfsfed\\username", "password");
connection.AuthType = AuthType.Basic;
connection.Bind();
var filter = "(&(objectClass=*))";
var searchRequest = new SearchRequest("", filter, SearchScope.Subtree, properties);
DirSyncRequestControl dirSyncRC = new DirSyncRequestControl(null, DirectorySynchronizationOptions.None);
searchRequest.Controls.Add(dirSyncRC);
var response = connection.SendRequest(searchRequest) as SearchResponse;
If I am using below code, then I am not getting any exception but getting empty result in cookie.
String[] properties = { "objectGUID", "sAMAccountName", "displayName", "mail", "member" };
String filter = "(|(objectClass=group)(objectClass=user))";
DirectorySearcher directorySearcher = new DirectorySearcher(myLdapConnection, filter, properties);
var dSynch = new DirectorySynchronization(System.DirectoryServices.DirectorySynchronizationOptions.None);
directorySearcher.DirectorySynchronization = dSynch;
directorySearcher.SearchScope = System.DirectoryServices.SearchScope.Subtree;
var results = directorySearcher.FindAll();
var cookie = dSynch.GetDirectorySynchronizationCookie();
Considerations:
I have only one Domain Controller
I am system admin. So, I can assign appropriate permissions to the user.
Please help.
• Your user ID will need the "Replicating Directory Changes" permission and should be a member of ‘Domain Administrators’ group to use the DirSync LDAP control extension. But please note that it pretty much can read anything in the directory partition, regardless of standard permissions. Though they cannot change anything.
However - you may have some attributes that are sensitive in your directory. Please refer the powershell script in the below link and execute it with the user ID after giving appropriate permissions using C#. It is a dirsync code that will retrieve even attributes like ‘userAccountControl, userparameters, msexchuseraccountcontrol, pwdlastset, unicodePwd (BLANK, So no hashed domain password is returned), lockouttime, accountexpires, unixuserpassword(Its Hash is returned).
http://dloder.blogspot.com/2012/01/powershell-dirsync-sample.html
Based on the response given by #KartikBhiwapurkar-MT, I figured out the bug.
The error The user has insufficient access rights is completely misleading (User had already Replicating Directory Changes rights and was part of Domain Administrators group). The error was happening in System.DirectoryServices.Protocols is that I was passing out "" as first parameter (distinguishedName)
new SearchRequest("", filter, SearchScope.Subtree, properties);
but it should have been passed as
new SearchRequest("DC=adfs,DC=fed,DC=zzz,DC=com", filter, SearchScope.Subtree, properties);
I was getting empty cookie in System.DirectoryServices because of bug in latest nuget package (6.0.0). At the time of writing this answer, the bug is still open.
Reference to bug

Keeping same session, 1 single browser

The title of the question may be irrelevant to what I am trying to find out. My goal is to write a test that will
A) login to Hotmail
B) Delete the junk mail in my junk folder.
Design wise I have created 2 separate test classes. TestSignInPage1.class is only testing the user login part which is working and passed.
TestJunkFolderDelete.class will go to junk mail folder and do the deletion. I understand I simply can’t use the junk delete test on its own, a user 1st needs to login to the account so I called the TestSignInPage1 class in the junk folder.
#Test
public void testJunk(){
//The part below will get my login credential from TestSignPage class
TestSignInPage1 t= new TestSignInPage1();
t.testPage1();
//The following part will handle junk folder clean operation
WebDriver driver=br.openBrowser("firefox", "https://outlook.live.com/owa/?realm=hotmail.com&path=/mail/junkemail");
JunkMail jm= PageFactory.initElements(driver, JunkMail.class);
jm.doJunkClean();
Problem: Once the login part has been executed, the junk folder delete test opens up another new browser and again asks for login information.
Question: In professional world how would you tackle this (i.e.: you will have 1 test only, is there a way to keep the same session 1 browser) etc?

Problems with accessing private files uploaded via file field in a webform with Varnish running on the server

I have a webform with a file field configured to private files. When I'm logged in as a superuser (uid=1) and trying to download the file, I get access denied.
I was trying to debug this, and this is what I noticed.
All private files served by the file_download() function that is called in the system.module. This function validates if the file exists and request the file headers using file_download_headers() function that triggers hook_file_download().
In the webform_file_download() function the module determines whether the file was a webform upload and grant or deny file access based on access to the submission. It validates access permission by calling webform_submission_access(). When I run dpm($account) in this function, I get an anonymous user when I'm trying to access the private file. When I browse recent log messages I have the entry below:
access denied 06/02/2015 - 11:23 system/files/webform/cv-uploads/cv.pdf Anonymous
When I change the URL to file that doesn't exist, I get this:
page not found 06/02/2015 - 11:26 system/files/webform/cv-uploads/cv.FDP admin
As you can see for some reasons when the module is trying to get access to the file that does exist, I get access denied and the user is anonymous. When the file doesn't exist, I get page not found and the user is a logged in user.
Any ideas why this happens?
UPDATE
I've added the following code to my index.php but I still get anonymous user when I'm trying to access the file.
define('DRUPAL_ROOT', getcwd());
require_once DRUPAL_ROOT . '/includes/bootstrap.inc';
drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
+ global $user;
+ watchdog('user', '<pre>'. print_r($user, TRUE) . '</pre>');
menu_execute_active_handler();
I've copied over the whole site including database and files to my local machine, and I'm not experiencing this issue. There's should be some settings that does this on the live site.
UPDATE 2
I've noticed that on the live site we have a list of disabled functions that I'm not aware of. Maybe it will help somehow.
disable_functions = apache_child_terminate, apache_setenv, define_syslog_variables, escapeshellarg, escapeshellcmd, eval, exec, fp, fput, ftp_connect, ftp_exec, ftp_get, ftp_login, ftp_nb_fput, ftp_put, ftp_raw, ftp_rawlist, highlight_file, ini_alter, ini_get_all, ini_restore, inject_code, mysql_pconnect, passthru, php_uname, phpAds_remoteInfo, phpAds_XmlRpc, phpAds_xmlrpcDecode, phpAds_xmlrpcEncode, popen, posix_getpwuid, posix_kill, posix_mkfifo, posix_setpgid, posix_setsid, posix_setuid, posix_setuid, posix_uname, proc_close, proc_get_status, proc_nice, proc_open, proc_terminate, shell_exec, system, xmlrpc_entity_decode, parse_ini_file,show_source,shell_exec
The problem was caused by the Varnish on the server. Below is the settings for Varnish.
# Always cache the following file types for all users. This list of extensions
# appears twice, once here and again in vcl_fetch so make sure you edit both
# and keep them equal.
if (req.url ~ "(?i)\.(pdf|asc|dat|txt|doc|xls|ppt|tgz|csv|png|gif|jpeg|jpg|ico|swf|css|js)(\?.*)?$") {
unset req.http.Cookie;
}

way to script an export of all AD users vcards

i'm looking for an easy way to export all active directory users info into unique vcards for each. there is some info i'd like to leave out of the vcard like home phone, and emergency contact. i've looked around the web and have little luck finding anything. any help would be appreciated.
I doubt there will be a very easy way. Ultimately, you need to
enumerate all your users (or a subset therefore)
iterate over the resulting list of users
export each user's data to a VCard
For the searching & iterating part, you can use a PrincipalSearcher to do your searching:
// create your domain context
using (PrincipalContext ctx = new PrincipalContext(ContextType.Domain))
{
// define a "query-by-example" principal - here, we search for a UserPrincipal
// this "QBE" user would give you the ability to further limit what you get back
// as results from the searcher
UserPrincipal qbeUser = new UserPrincipal(ctx);
// create your principal searcher passing in the QBE principal
PrincipalSearcher srch = new PrincipalSearcher(qbeUser);
// find all matches
foreach(var found in srch.FindAll())
{
UserPrincipal foundUser = found as UserPrincipal;
if(foundUser != null)
{
ExportToVCard(foundUser);
}
}
}
And now all that's left to do is create the ExportToVCard function :-) See e.g. this blog post with code samples and further links for help.
If you haven't already - absolutely read the MSDN article Managing Directory Security Principals in the .NET Framework 3.5 which shows nicely how to make the best use of the new features in System.DirectoryServices.AccountManagement. Or see the MSDN documentation on the System.DirectoryServices.AccountManagement namespace.
If you just want the data itself, I would take a look at Softerra's free LDAP Browser, found here.
Setup a profile for your directory server - once it's connected in the browser, you'll see the default schema for the BaseDN you've provided during the initial setup. On the server icon, right click, and hit "Export Data".
The export wizard will walk you through most of the process, but the important part is Step 3. If you want to find all users, just set your search filter to (objectClass=user), make sure your search scope is SubTree, and then then edit what attributes you want to return.
You'll have to process the results into VCards, but this is the easiest\fastest way of getting all the users and attributes that you want.

Check if the current user can write to the registry (C, windows)

Is there a way to check whether the current user can write to the registry? More specifically if it's not an administrator, can it write to HKEY_LOCAL_MACHINE or the policy keys on HKEY_CURRENT_USER.
I tried with LookupPrivilegeValue() but I don't think it's the right thing to do.
Code is appreciated.
Theres one really simple and reliable way to see if the user has write access to a registry key:-
LONG err = RegOpenKeyEx(....,KEY_READ|KEY_WRITE);
if(err) {
// Test err to see if its a permission error. if so, the user does not have permission.

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