[ekohl] 59769: [SAMSRV] SampSetUserPassword: Fix check for vaild password hashes.

Author: ekohl
Date: Sun Aug 18 11:33:51 2013
New Revision: 59769

URL: http://svn.reactos.org/svn/reactos?rev=59769&view=rev
Log:
[SAMSRV]
SampSetUserPassword: Fix check for vaild password hashes.

Modified:
    trunk/reactos/dll/win32/samsrv/user.c

Modified: trunk/reactos/dll/win32/samsrv/user.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/samsrv/user.c?re…
==============================================================================
--- trunk/reactos/dll/win32/samsrv/user.c	[iso-8859-1] (original)
+++ trunk/reactos/dll/win32/samsrv/user.c	[iso-8859-1] Sun Aug 18 11:33:51 2013
@@ -402,12 +402,14 @@
     NTSTATUS Status;
 
     UseNtPassword =
-       ((memcmp(NtPassword, &EmptyNtHash, sizeof(ENCRYPTED_NT_OWF_PASSWORD)) != 0)
&&
-        (NtPasswordPresent != FALSE));
+       ((NtPasswordPresent != FALSE) &&
+        (NtPassword != NULL) &&
+        (memcmp(NtPassword, &EmptyNtHash, sizeof(ENCRYPTED_NT_OWF_PASSWORD)) != 0));
 
     UseLmPassword =
-       ((memcmp(LmPassword, &EmptyLmHash, sizeof(ENCRYPTED_LM_OWF_PASSWORD)) != 0)
&&
-        (LmPasswordPresent != FALSE));
+       ((LmPasswordPresent != FALSE) &&
+        (LmPassword != NULL) &&
+        (memcmp(LmPassword, &EmptyLmHash, sizeof(ENCRYPTED_LM_OWF_PASSWORD)) != 0));
 
     /* Update the NT password history only if we have a new non-empty NT password */
     if (UseNtPassword)