From: Pierre Schweitzer <pierre@reactos.org>
Date: Sun, 21 Jun 2015 08:07:11 +0000 (+0000)
Subject: [NTOSKNRL]
X-Git-Tag: backups/colins-printing-for-freedom@73041~15^2~8
X-Git-Url: https://git.reactos.org/?p=reactos.git;a=commitdiff_plain;h=f633746280b3556b1dada2fe6d19427ff841e9aa;ds=sidebyside

[NTOSKNRL]
As shown by the non commited yet tests from Thomas, we have to check for privilege in NtSetSystemInformation - SystemFlagsInformation

svn path=/trunk/; revision=68224
---

diff --git a/reactos/ntoskrnl/ex/sysinfo.c b/reactos/ntoskrnl/ex/sysinfo.c
index 3589d65d303..b77e0a1089f 100644
--- a/reactos/ntoskrnl/ex/sysinfo.c
+++ b/reactos/ntoskrnl/ex/sysinfo.c
@@ -1080,6 +1080,12 @@ SSI_DEF(SystemFlagsInformation)
     {
         return STATUS_INFO_LENGTH_MISMATCH;
     }
+
+    if (!SeSinglePrivilegeCheck(SeDebugPrivilege, ExGetPreviousMode()))
+    {
+        return STATUS_ACCESS_DENIED;
+    }
+
     NtGlobalFlag = ((PSYSTEM_FLAGS_INFORMATION) Buffer)->Flags;
     return STATUS_SUCCESS;
 }