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tst: ntptfs: ACCESS_SYSTEM_SECURITY

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This commit is contained in:
Bill Zissimopoulos 2022-01-21 23:54:36 +00:00
parent 4de72f7c32
commit 290bc0d4c9
No known key found for this signature in database
GPG Key ID: 3D4F95D52C7B3EA3
3 changed files with 31 additions and 8 deletions
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2
tst/ntptfs/ptfs-main.c
View File

@ -200,7 +200,7 @@ static NTSTATUS SvcStart(FSP_SERVICE *Service, ULONG argc, PWSTR *argv)
FspDebugLogSetHandle(DebugLogHandle);
}
EnablePrivileges(SE_BACKUP_NAME, SE_RESTORE_NAME, SE_CREATE_SYMBOLIC_LINK_NAME, 0);
EnablePrivileges(SE_SECURITY_NAME, SE_BACKUP_NAME, SE_RESTORE_NAME, SE_CREATE_SYMBOLIC_LINK_NAME, 0);
Result = PtfsCreate(
RootPath,

36
tst/ntptfs/ptfs.c
View File

@ -92,7 +92,8 @@ static NTSTATUS GetSecurityByName(FSP_FILE_SYSTEM *FileSystem,
Result = LfsOpenFile(
&Handle,
READ_CONTROL,
READ_CONTROL |
(Ptfs->HasSecurityPrivilege ? ACCESS_SYSTEM_SECURITY : 0),
Ptfs->RootHandle,
FileName,
FILE_OPEN_FOR_BACKUP_INTENT | FILE_OPEN_REPARSE_POINT);
@ -121,7 +122,8 @@ static NTSTATUS GetSecurityByName(FSP_FILE_SYSTEM *FileSystem,
{
Result = NtQuerySecurityObject(
Handle,
OWNER_SECURITY_INFORMATION | GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION,
OWNER_SECURITY_INFORMATION | GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION |
(Ptfs->HasSecurityPrivilege ? SACL_SECURITY_INFORMATION : 0),
SecurityDescriptor,
(ULONG)*PSecurityDescriptorSize,
&SecurityDescriptorSizeNeeded);
@ -160,7 +162,8 @@ static NTSTATUS CreateEx(FSP_FILE_SYSTEM *FileSystem,
Result = LfsCreateFile(
&Handle,
MaximumAccess,
MaximumAccess |
(Ptfs->HasSecurityPrivilege ? ACCESS_SYSTEM_SECURITY : 0),
Ptfs->RootHandle,
FileName,
SecurityDescriptor,
@ -176,7 +179,8 @@ static NTSTATUS CreateEx(FSP_FILE_SYSTEM *FileSystem,
case STATUS_INVALID_PARAMETER:
Result = LfsCreateFile(
&Handle,
GrantedAccess,
GrantedAccess |
(Ptfs->HasSecurityPrivilege ? ACCESS_SYSTEM_SECURITY : 0),
Ptfs->RootHandle,
FileName,
SecurityDescriptor,
@ -255,7 +259,8 @@ static NTSTATUS Open(FSP_FILE_SYSTEM *FileSystem,
Result = LfsOpenFile(
&Handle,
MaximumAccess,
MaximumAccess |
(Ptfs->HasSecurityPrivilege ? ACCESS_SYSTEM_SECURITY : 0),
Ptfs->RootHandle,
FileName,
FILE_OPEN_FOR_BACKUP_INTENT | FILE_OPEN_REPARSE_POINT | CreateOptions);
@ -268,7 +273,8 @@ static NTSTATUS Open(FSP_FILE_SYSTEM *FileSystem,
case STATUS_INVALID_PARAMETER:
Result = LfsOpenFile(
&Handle,
GrantedAccess,
GrantedAccess |
(Ptfs->HasSecurityPrivilege ? ACCESS_SYSTEM_SECURITY : 0),
Ptfs->RootHandle,
FileName,
FILE_OPEN_FOR_BACKUP_INTENT | FILE_OPEN_REPARSE_POINT | CreateOptions);
@ -687,13 +693,15 @@ static NTSTATUS GetSecurity(FSP_FILE_SYSTEM *FileSystem,
PVOID FileContext,
PSECURITY_DESCRIPTOR SecurityDescriptor, SIZE_T *PSecurityDescriptorSize)
{
PTFS *Ptfs = FileSystemContext;
HANDLE Handle = FileContextHandle;
ULONG SecurityDescriptorSizeNeeded;
NTSTATUS Result;
Result = NtQuerySecurityObject(
Handle,
OWNER_SECURITY_INFORMATION | GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION,
OWNER_SECURITY_INFORMATION | GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION |
(Ptfs->HasSecurityPrivilege ? SACL_SECURITY_INFORMATION : 0),
SecurityDescriptor,
(ULONG)*PSecurityDescriptorSize,
&SecurityDescriptorSizeNeeded);
@ -1121,6 +1129,9 @@ NTSTATUS PtfsCreate(
{
PTFS *Ptfs = 0;
FSP_FILE_SYSTEM *FileSystem = 0;
BOOL HasSecurityPrivilege = FALSE;
PRIVILEGE_SET PrivilegeSet;
HANDLE ProcessToken;
HANDLE RootHandle = INVALID_HANDLE_VALUE;
IO_STATUS_BLOCK Iosb;
union
@ -1135,6 +1146,16 @@ NTSTATUS PtfsCreate(
*PPtfs = 0;
if (LookupPrivilegeValueW(0, SE_SECURITY_NAME, &PrivilegeSet.Privilege[0].Luid) &&
OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &ProcessToken))
{
PrivilegeSet.PrivilegeCount = 1;
PrivilegeSet.Control = PRIVILEGE_SET_ALL_NECESSARY;
PrivilegeSet.Privilege[0].Attributes = 0;
PrivilegeCheck(ProcessToken, &PrivilegeSet, &HasSecurityPrivilege);
CloseHandle(ProcessToken);
}
RootHandle = CreateFileW(
RootPath,
FILE_READ_ATTRIBUTES,
@ -1234,6 +1255,7 @@ NTSTATUS PtfsCreate(
memset(Ptfs, 0, sizeof *Ptfs);
Ptfs->FileSystem = FileSystem;
Ptfs->HasSecurityPrivilege = HasSecurityPrivilege;
Ptfs->RootHandle = RootHandle;
Ptfs->RootPrefixLength = FileAllInfo.NameInformation.FileNameLength;
Ptfs->FsAttributeMask = FsAttributeMask;

1
tst/ntptfs/ptfs.h
View File

@ -55,6 +55,7 @@ enum
typedef struct
{
FSP_FILE_SYSTEM *FileSystem;
BOOLEAN HasSecurityPrivilege;
HANDLE RootHandle;
ULONG RootPrefixLength;
ULONG FsAttributeMask;