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Page09Security.cpp
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/*****************************************************************************/
/* Page09Security.cpp Copyright (c) Ladislav Zezula 2005 */
/*---------------------------------------------------------------------------*/
/* Description : */
/*---------------------------------------------------------------------------*/
/* Date Ver Who Comment */
/* -------- ---- --- ------- */
/* 15.08.05 1.00 Lad The first version of Page09Security.cpp */
/*****************************************************************************/
#include "FileTest.h"
#include "resource.h"
//-----------------------------------------------------------------------------
// Local variables
#define ALL_SACL_SECURITY_INFORMATION 0xFFFFFFF8 // Mask for all system-type security infos
#define ITEM_DATA_MAGIC 0xDEADBABE
#define MAX_ITEM_TEXT 1024
#define MAX_NEST_LEVEL 8
#define ItemDataNULL (PVOID)(INT_PTR)(NULL)
#define ItemDataValid (PVOID)(INT_PTR)(1)
typedef enum _ITEM_TYPE
{
ItemTypeUnknown,
ItemTypeOwner, // The item contains "OWNER_SECURITY_INFORMATION"
ItemTypeGroup, // The item contains "GROUP_SECURITY_INFORMATION"
ItemTypeDacl, // The item contains "DACL_SECURITY_INFORMATION"
ItemTypeSacl, // The item contains "SACL_SECURITY_INFORMATION"
ItemTypeNoAcl, // The item says that an ACL is not present
ItemTypeNullAcl, // NULL ACL
ItemTypeSid, // Security Identifier (SID)
ItemTypeAce, // Access Control Entry (ACE) from DACL
ItemTypeAceType, // ACE_HEADER::AceType
ItemTypeBool, // A boolean value
ItemTypeUint08, // 8-bit integer
ItemTypeUint16, // 16-bit integer
ItemTypeUint32, // 32-bit integer
ItemTypeUint64, // 64-bit integer
ItemTypeLPWSTR, // Pointer to a zero-terminate unicode string (LPWSTR)
ItemTypeBinN, // An octet string with length at the beginning
ItemTypeGuid, // An object GUID
ItemTypeGuid2, // An inherited object GUID
ItemTypeSid11, // mandatory label SID
ItemTypeSid17, // Policy label SID
ItemTypeSid19, // Trust level SID
ItemTypeCSA_V1, // The CLAIM_SECURITY_ATTRIBUTE_RELATIVE_V1 structure
ItemTypeCSA_VType, // CLAIM_SECURITY_ATTRIBUTE_RELATIVE_V1::ValueType
ItemTypeCSA_VCnt, // CLAIM_SECURITY_ATTRIBUTE_RELATIVE_V1::ValueCount
ItemTypeSidN, // "Counted" SID (with preceding ULONG, containing length)
ItemTypeCondition, // ACE condition
} ITEM_TYPE, *PITEM_TYPE;
typedef struct _NON_EDITABLE_DATA
{
ULONG Magic; // ITEM_DATA_MAGIC
ULONG Length; // Length of the subsequent data
BYTE Data[1]; // The data itself
} NON_EDITABLE_DATA, *PNON_EDITABLE_DATA;
typedef struct _TREE_ITEM_INFO
{
ITEM_TYPE ItemType;
UINT nIDFormat1; // Format string when no data
UINT nIDFormat2; // Format string when there are data
// Array of flag values and flag names
TFlagInfo * pFlagInfos;
// Converts the binary item to string representation that will be shown in the tree view item
NTSTATUS (*ToString) (_TREE_ITEM_INFO * pItemInfo, LPTSTR szBuffer, size_t ccBuffer, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy);
// Converts the string representation to binary item
NTSTATUS(*StringTo) (_TREE_ITEM_INFO * pItemInfo, LPCTSTR szString, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy);
// Creates a new item of that type
NTSTATUS(*CreateNew)(_TREE_ITEM_INFO * pItemInfo, LPBYTE pbDataBuffer, size_t * pcbDataBuffer);
// Type of the item data
PVOID ItemData;
} TREE_ITEM_INFO, *PTREE_ITEM_INFO;
typedef const TREE_ITEM_INFO *PCTREE_ITEM_INFO;
typedef struct _ACE_FIELD_INFO
{
ULONG AceLayoutFlag;
TREE_ITEM_INFO TreeItem;
} ACE_FIELD_INFO, *PACE_FIELD_INFO;
typedef struct _TV_SELECTION
{
size_t ItemIndex[MAX_NEST_LEVEL]; // Item index in each level
size_t nNestLevel; // Nest level of the item that was selected
} TV_SELECTION, *PTV_SELECTION;
static LPCTSTR szAceTypeSuffix = _T("_TYPE");
static LPCSTR szUnknownAceType = "UNKNOWN_ACE_TYPE: %02x";
static size_t GLOBAL_ItemIndex = INVALID_ITEM_INDEX;
static PACL pAclInWork = NULL; // Current ACL-in-construction
static PACE pAceInWork = NULL; // Current ACE-in-construction
static SID_IDENTIFIER_AUTHORITY SiaNull = SECURITY_NULL_SID_AUTHORITY;
static SID_IDENTIFIER_AUTHORITY SiaWorld = SECURITY_WORLD_SID_AUTHORITY;
static SID_IDENTIFIER_AUTHORITY SiaLabel = SECURITY_MANDATORY_LABEL_AUTHORITY;
static SID_IDENTIFIER_AUTHORITY SiaPolicy = SECURITY_SCOPED_POLICY_ID_AUTHORITY;
static SID_IDENTIFIER_AUTHORITY SiaTrust = SECURITY_PROCESS_TRUST_AUTHORITY;
static const BYTE EmptyAcl[] =
{
ACL_REVISION, 0, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00
};
static const BYTE FullControlAcl[] =
{
0x04, 0x00, 0x1c, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x00, 0x10,
0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00
};
static const LPCTSTR szNoGuidString = _T("(none)");
static TFlagInfo SecurityInformations[] =
{
FLAGINFO_BITV(OWNER_SECURITY_INFORMATION),
FLAGINFO_BITV(GROUP_SECURITY_INFORMATION),
FLAGINFO_BITV(DACL_SECURITY_INFORMATION),
FLAGINFO_BITV(SACL_SECURITY_INFORMATION),
FLAGINFO_BITV(LABEL_SECURITY_INFORMATION),
FLAGINFO_BITV(ATTRIBUTE_SECURITY_INFORMATION),
FLAGINFO_BITV(SCOPE_SECURITY_INFORMATION),
FLAGINFO_BITV(PROCESS_TRUST_LABEL_SECURITY_INFORMATION),
FLAGINFO_BITV(ACCESS_FILTER_SECURITY_INFORMATION),
FLAGINFO_BITV(BACKUP_SECURITY_INFORMATION),
FLAGINFO_BITV(PROTECTED_DACL_SECURITY_INFORMATION),
FLAGINFO_BITV(PROTECTED_SACL_SECURITY_INFORMATION),
FLAGINFO_BITV(UNPROTECTED_DACL_SECURITY_INFORMATION),
FLAGINFO_BITV(UNPROTECTED_SACL_SECURITY_INFORMATION),
FLAGINFO_END()
};
static TFlagInfo AclRevFlags[] =
{
FLAGINFO_NUMV(ACL_REVISION1),
FLAGINFO_NUMV(ACL_REVISION2),
FLAGINFO_NUMV(ACL_REVISION3),
FLAGINFO_NUMV(ACL_REVISION_DS),
FLAGINFO_END()
};
static TFlagInfo AceHdrTypes[] =
{
FLAGINFO_NUMV(ACCESS_ALLOWED_ACE_TYPE),
FLAGINFO_NUMV(ACCESS_DENIED_ACE_TYPE),
FLAGINFO_NUMV(SYSTEM_AUDIT_ACE_TYPE),
FLAGINFO_NUMV(SYSTEM_ALARM_ACE_TYPE),
FLAGINFO_NUMV(ACCESS_ALLOWED_COMPOUND_ACE_TYPE),
FLAGINFO_NUMV(ACCESS_ALLOWED_OBJECT_ACE_TYPE),
FLAGINFO_NUMV(ACCESS_DENIED_OBJECT_ACE_TYPE),
FLAGINFO_NUMV(SYSTEM_AUDIT_OBJECT_ACE_TYPE),
FLAGINFO_NUMV(SYSTEM_ALARM_OBJECT_ACE_TYPE),
FLAGINFO_NUMV(ACCESS_ALLOWED_CALLBACK_ACE_TYPE),
FLAGINFO_NUMV(ACCESS_DENIED_CALLBACK_ACE_TYPE),
FLAGINFO_NUMV(ACCESS_ALLOWED_CALLBACK_OBJECT_ACE_TYPE),
FLAGINFO_NUMV(ACCESS_DENIED_CALLBACK_OBJECT_ACE_TYPE),
FLAGINFO_NUMV(SYSTEM_AUDIT_CALLBACK_ACE_TYPE),
FLAGINFO_NUMV(SYSTEM_ALARM_CALLBACK_ACE_TYPE),
FLAGINFO_NUMV(SYSTEM_AUDIT_CALLBACK_OBJECT_ACE_TYPE),
FLAGINFO_NUMV(SYSTEM_ALARM_CALLBACK_OBJECT_ACE_TYPE),
FLAGINFO_NUMV(SYSTEM_MANDATORY_LABEL_ACE_TYPE),
FLAGINFO_NUMV(SYSTEM_RESOURCE_ATTRIBUTE_ACE_TYPE),
FLAGINFO_NUMV(SYSTEM_SCOPED_POLICY_ID_ACE_TYPE),
FLAGINFO_NUMV(SYSTEM_PROCESS_TRUST_LABEL_ACE_TYPE),
FLAGINFO_NUMV(SYSTEM_ACCESS_FILTER_ACE_TYPE),
FLAGINFO_END()
};
static TFlagInfo AceHdrFlags[] =
{
FLAGINFO_BITV(OBJECT_INHERIT_ACE),
FLAGINFO_BITV(CONTAINER_INHERIT_ACE),
FLAGINFO_BITV(NO_PROPAGATE_INHERIT_ACE),
FLAGINFO_BITV(INHERIT_ONLY_ACE),
FLAGINFO_BITV(INHERITED_ACE),
FLAGINFO_BITV(SUCCESSFUL_ACCESS_ACE_FLAG),
FLAGINFO_BITV(FAILED_ACCESS_ACE_FLAG),
FLAGINFO_END()
};
static TFlagInfo AceHdrFlags2[] =
{
FLAGINFO_BITV(OBJECT_INHERIT_ACE),
FLAGINFO_BITV(CONTAINER_INHERIT_ACE),
FLAGINFO_BITV(NO_PROPAGATE_INHERIT_ACE),
FLAGINFO_BITV(INHERIT_ONLY_ACE),
FLAGINFO_BITV(INHERITED_ACE),
FLAGINFO_BITV(TRUST_PROTECTED_FILTER_ACE_FLAG),
FLAGINFO_END()
};
static TFlagInfo AceMasks[] =
{
FLAGINFO_BITV(FILE_READ_DATA),
FLAGINFO_BITV(FILE_WRITE_DATA),
FLAGINFO_BITV(FILE_APPEND_DATA),
FLAGINFO_BITV(FILE_READ_EA),
FLAGINFO_BITV(FILE_WRITE_EA),
FLAGINFO_BITV(FILE_EXECUTE),
FLAGINFO_BITV(FILE_DELETE_CHILD),
FLAGINFO_BITV(FILE_READ_ATTRIBUTES),
FLAGINFO_BITV(FILE_WRITE_ATTRIBUTES),
FLAGINFO_BITV(DELETE),
FLAGINFO_BITV(READ_CONTROL),
FLAGINFO_BITV(WRITE_DAC),
FLAGINFO_BITV(WRITE_OWNER),
FLAGINFO_BITV(SYNCHRONIZE),
FLAGINFO_BITV(GENERIC_WRITE),
FLAGINFO_BITV(GENERIC_READ),
FLAGINFO_BITV(GENERIC_WRITE),
FLAGINFO_BITV(GENERIC_EXECUTE),
FLAGINFO_BITV(GENERIC_ALL),
FLAGINFO_END()
};
static TFlagInfo AdsAceMasks[] =
{
FLAGINFO_BITV(ADS_RIGHT_DS_CREATE_CHILD),
FLAGINFO_BITV(ADS_RIGHT_DS_DELETE_CHILD),
FLAGINFO_BITV(ADS_RIGHT_ACTRL_DS_LIST),
FLAGINFO_BITV(ADS_RIGHT_DS_SELF),
FLAGINFO_BITV(ADS_RIGHT_DS_READ_PROP),
FLAGINFO_BITV(ADS_RIGHT_DS_WRITE_PROP),
FLAGINFO_BITV(ADS_RIGHT_DS_DELETE_TREE),
FLAGINFO_BITV(ADS_RIGHT_DS_LIST_OBJECT),
FLAGINFO_BITV(ADS_RIGHT_DS_CONTROL_ACCESS),
FLAGINFO_BITV(ADS_RIGHT_DELETE),
FLAGINFO_BITV(ADS_RIGHT_READ_CONTROL),
FLAGINFO_BITV(ADS_RIGHT_WRITE_DAC),
FLAGINFO_BITV(ADS_RIGHT_WRITE_OWNER),
FLAGINFO_BITV(ADS_RIGHT_SYNCHRONIZE),
FLAGINFO_BITV(ADS_RIGHT_ACCESS_SYSTEM_SECURITY),
FLAGINFO_BITV(ADS_RIGHT_GENERIC_READ),
FLAGINFO_BITV(ADS_RIGHT_GENERIC_WRITE),
FLAGINFO_BITV(ADS_RIGHT_GENERIC_EXECUTE),
FLAGINFO_BITV(ADS_RIGHT_GENERIC_ALL),
FLAGINFO_END()
};
static TFlagInfo LabelMasks[] =
{
FLAGINFO_BITV(SYSTEM_MANDATORY_LABEL_NO_WRITE_UP),
FLAGINFO_BITV(SYSTEM_MANDATORY_LABEL_NO_READ_UP),
FLAGINFO_BITV(SYSTEM_MANDATORY_LABEL_NO_EXECUTE_UP),
FLAGINFO_END()
};
static TFlagInfo CAceTypes[] =
{
FLAGINFO_BITV(COMPOUND_ACE_IMPERSONATION),
FLAGINFO_END()
};
static TFlagInfo ObjAceFlags[] =
{
FLAGINFO_BITV(ACE_OBJECT_TYPE_PRESENT),
FLAGINFO_BITV(ACE_INHERITED_OBJECT_TYPE_PRESENT),
FLAGINFO_END()
};
static TFlagInfo CompoundAceTypes[] =
{
FLAGINFO_BITV(COMPOUND_ACE_IMPERSONATION),
FLAGINFO_END()
};
static TFlagInfo IntgrLevels[] =
{
FLAGINFO_NUMV(SECURITY_MANDATORY_UNTRUSTED_RID),
FLAGINFO_NUMV(SECURITY_MANDATORY_LOW_RID),
FLAGINFO_NUMV(SECURITY_MANDATORY_MEDIUM_RID),
FLAGINFO_NUMV(SECURITY_MANDATORY_MEDIUM_PLUS_RID),
FLAGINFO_NUMV(SECURITY_MANDATORY_HIGH_RID),
FLAGINFO_NUMV(SECURITY_MANDATORY_SYSTEM_RID),
FLAGINFO_NUMV(SECURITY_MANDATORY_PROTECTED_PROCESS_RID),
FLAGINFO_END()
};
// Process trust types
// Source: /~https://github.com/googleprojectzero/sandbox-attacksurface-analysis-tools/NtApiDotNet/NtSemaphore.cs
#define TT_None 0
#define TT_ProtectedLight 512
#define TT_Protected 1024
static TFlagInfo PsTrustTypes[] =
{
FLAGINFO_NUMV(TT_None),
FLAGINFO_NUMV(TT_ProtectedLight),
FLAGINFO_NUMV(TT_Protected),
FLAGINFO_END()
};
// Process trust levels
#define TL_None 0
#define TL_Authenticode 1024
#define TL_AntiMalware 1536
#define TL_App 2048
#define TL_Windows 4096
#define TL_WinTcb 8192
static TFlagInfo PsTrustLevels[] =
{
FLAGINFO_NUMV(TL_None),
FLAGINFO_NUMV(TL_Authenticode),
FLAGINFO_NUMV(TL_AntiMalware),
FLAGINFO_NUMV(TL_App),
FLAGINFO_NUMV(TL_Windows),
FLAGINFO_NUMV(TL_WinTcb),
FLAGINFO_END()
};
static TFlagInfo CSA_ValTypes[] =
{
FLAGINFO_NUMV(CLAIM_SECURITY_ATTRIBUTE_TYPE_INVALID),
FLAGINFO_NUMV(CLAIM_SECURITY_ATTRIBUTE_TYPE_INT64),
FLAGINFO_NUMV(CLAIM_SECURITY_ATTRIBUTE_TYPE_UINT64),
FLAGINFO_NUMV(CLAIM_SECURITY_ATTRIBUTE_TYPE_STRING),
FLAGINFO_NUMV(CLAIM_SECURITY_ATTRIBUTE_TYPE_FQBN),
FLAGINFO_NUMV(CLAIM_SECURITY_ATTRIBUTE_TYPE_SID),
FLAGINFO_NUMV(CLAIM_SECURITY_ATTRIBUTE_TYPE_BOOLEAN),
FLAGINFO_NUMV(CLAIM_SECURITY_ATTRIBUTE_TYPE_OCTET_STRING),
FLAGINFO_END()
};
static TFlagInfo CSA_Flags[] =
{
FLAGINFO_BITV(CLAIM_SECURITY_ATTRIBUTE_NON_INHERITABLE),
FLAGINFO_BITV(CLAIM_SECURITY_ATTRIBUTE_VALUE_CASE_SENSITIVE),
FLAGINFO_BITV(CLAIM_SECURITY_ATTRIBUTE_USE_FOR_DENY_ONLY),
FLAGINFO_BITV(CLAIM_SECURITY_ATTRIBUTE_DISABLED_BY_DEFAULT),
FLAGINFO_BITV(CLAIM_SECURITY_ATTRIBUTE_DISABLED),
FLAGINFO_BITV(CLAIM_SECURITY_ATTRIBUTE_MANDATORY),
FLAGINFO_END()
};
//-----------------------------------------------------------------------------
// Debug
//#define _COMPARE_ACLS
#ifdef _COMPARE_ACLS
BYTE SaveAclBuffer[MAX_ACL_LENGTH] = {0};
#endif
//-----------------------------------------------------------------------------
// Local functions
static void ReverseArrayItems(HTREEITEM array[], size_t length)
{
size_t start = 0;
size_t end = length - 1;
while(start < end)
{
// Swap elements at start and end indices
HTREEITEM temp = array[start];
array[start] = array[end];
array[end] = temp;
// Move indices towards the center
start++;
end--;
}
}
static PNON_EDITABLE_DATA IsItemDataPointer(PVOID ptr)
{
if((UINT_PTR)(ptr) > 0x100)
{
if(((PNON_EDITABLE_DATA)(ptr))->Magic == ITEM_DATA_MAGIC)
{
return (PNON_EDITABLE_DATA)(ptr);
}
}
return NULL;
}
static bool IsValidAceAttributeType(LPBYTE pbBuffer)
{
WORD wValueType = *(PWORD)(pbBuffer);
// Check valid values
if(CLAIM_SECURITY_ATTRIBUTE_TYPE_INT64 <= wValueType && wValueType <= CLAIM_SECURITY_ATTRIBUTE_TYPE_STRING)
return true;
if(CLAIM_SECURITY_ATTRIBUTE_TYPE_SID <= wValueType && wValueType <= CLAIM_SECURITY_ATTRIBUTE_TYPE_OCTET_STRING)
return true;
return false;
}
static bool IsValidAceAttributeCount(LPBYTE pbBuffer)
{
DWORD dwValueCount = *(PDWORD)(pbBuffer);
// Artificially limited value count
return (0 < dwValueCount && dwValueCount <= 100);
}
static bool IsItemTypeEditable(PTREE_ITEM_INFO pItemInfo)
{
switch(pItemInfo->ItemType)
{
case ItemTypeAce:
case ItemTypeCondition:
return false;
default:
return true;
}
}
static bool IsIntegerTypeWithFlags(PTREE_ITEM_INFO pItemInfo)
{
int nItemType;
if(pItemInfo->pFlagInfos != NULL)
{
nItemType = (int)pItemInfo->ItemType;
return ((int)ItemTypeUint08 <= nItemType && nItemType <= (int)ItemTypeUint64);
}
return false;
}
static LPCSTR GetAceTypeString(DWORD AceType)
{
static CHAR szBuffer[64];
BYTE MaxAceType = (BYTE)(_countof(AceHdrTypes) - 1);
// Insert the "root" item with ACE type
if(AceType < MaxAceType)
return AceHdrTypes[AceType].szFlagText;
// Prepare string for an unknown ACE type
StringCchPrintfA(szBuffer, _countof(szBuffer), szUnknownAceType, AceType);
return szBuffer;
}
static bool GetAceTypeString(LPTSTR szBuffer, size_t ccBuffer, PACE_HEADER pAceHeader)
{
LPCSTR szAceType = GetAceTypeString(pAceHeader->AceType);
LPTSTR szSuffix;
// Format the ACE type name
StringCchPrintf(szBuffer, ccBuffer, _T("%hs"), szAceType);
// Cut off the "_TYPE" suffix
if((szSuffix = _tcsrchr(szBuffer, _T('_'))) != NULL)
{
if(!_tcscmp(szSuffix, szAceTypeSuffix))
{
szSuffix[0] = 0;
}
}
return true;
}
static ULONG AceObjectGuidFlag(ITEM_TYPE ItemType)
{
if(ItemType == ItemTypeGuid)
return ACE_OBJECT_TYPE_PRESENT;
if(ItemType == ItemTypeGuid2)
return ACE_INHERITED_OBJECT_TYPE_PRESENT;
return 0;
}
static ULONG AceObjectGuidPresent(PACE pAce, ITEM_TYPE ItemType)
{
if(pAce != NULL)
{
ACE_HELPER AceHelper(pAce->Header.AceType);
if(AceHelper.AceLayout & ACE_FIELD_GUID_FLAGS)
{
return (pAce->Flags & AceObjectGuidFlag(ItemType));
}
}
return 0;
}
void SidToString(PSID pvSid, LPTSTR szString, size_t cchString, bool bAddUserName)
{
PSID_IDENTIFIER_AUTHORITY pSia;
SID * pSid = (SID *)pvSid;
LPTSTR szStringEnd = szString + cchString;
UCHAR SubAuthCount;
// Add the "S-%u-" begin with revision
pSia = GetSidIdentifierAuthority(pSid);
StringCchPrintfEx(szString, (szStringEnd - szString), &szString, NULL, 0, _T("S-%u-%u"),
pSid->Revision,
pSia->Value[5]);
// Add the subauthorities
SubAuthCount = *GetSidSubAuthorityCount(pSid);
for(DWORD i = 0; i < SubAuthCount; i++)
{
DWORD dwSubAuth = *GetSidSubAuthority(pSid, i);
StringCchPrintfEx(szString, (szStringEnd - szString), &szString, NULL, 0, L"-%u", dwSubAuth);
}
// If we are required to add user name, do it.
if(bAddUserName)
{
SID_NAME_USE SidNameUse;
TCHAR szDomainName[128] = _T("");
TCHAR szUserName[128] = _T("");
DWORD cchDomainName = _countof(szDomainName);
DWORD cchUserName = _countof(szUserName);
if(LookupAccountSid(NULL, pSid, szUserName, &cchUserName, szDomainName, &cchDomainName, &SidNameUse))
{
if(szDomainName[0] != 0)
StringCchPrintf(szString, (szStringEnd - szString), _T(" (%s\\%s)"), szDomainName, szUserName);
else
StringCchPrintf(szString, (szStringEnd - szString), _T(" (%s)"), szUserName);
}
else
{
StringCchPrintf(szString, (szStringEnd - szString), _T(" (Unknown SID)"));
}
}
}
//
// The SID in the SYSTEM_MANDATORY_LABEL_ACE has the following format:
//
// - IdentifierAuthority is set to SECURITY_MANDATORY_LABEL_AUTHORITY
// - The last subauthority is set to one of the SECURITY_MANDATORY_XXXX values
//
static LPBYTE GetSystemSidIntegerValue(PSID pSid, PSID_IDENTIFIER_AUTHORITY pSiaExpected, UCHAR SubAuthCountNeeded = 1)
{
UCHAR SubAuthCount;
if(pSid != NULL && RtlLengthSid(pSid) > FIELD_OFFSET(SYSTEM_MANDATORY_LABEL_ACE, SidStart))
{
PSID_IDENTIFIER_AUTHORITY pSia = GetSidIdentifierAuthority(pSid);
// Compare the required identifier authority
if(!memcmp(pSia, pSiaExpected, sizeof(SID_IDENTIFIER_AUTHORITY)))
{
// Get the number of sub-authorities
if((SubAuthCount = *GetSidSubAuthorityCount(pSid)) == SubAuthCountNeeded)
{
// Get the last authority
return (LPBYTE)GetSidSubAuthority(pSid, 0);
}
}
}
// Return NULL
assert(false);
return NULL;
}
static LPBYTE GetSidIntegrityLevel(PSID pSid)
{
return GetSystemSidIntegerValue(pSid, &SiaLabel);
}
static LPBYTE GetSidScopedPolicyId(PSID pSid)
{
return GetSystemSidIntegerValue(pSid, &SiaPolicy);
}
static LPBYTE GetSidProcessTrustLevel(PSID pSid)
{
return GetSystemSidIntegerValue(pSid, &SiaTrust, 2);
}
//-----------------------------------------------------------------------------
// Local functions - tree items
static DWORD GetDefaultAceTypeForAcl(PCTREE_ITEM_INFO pItemInfo)
{
return (pItemInfo->ItemType == ItemTypeSacl) ? SYSTEM_MANDATORY_LABEL_ACE_TYPE : ACCESS_ALLOWED_ACE_TYPE;
}
static int GetDefaultCharLimit(PCTREE_ITEM_INFO pItemInfo)
{
if(pItemInfo->ItemType == ItemTypeUint08 || pItemInfo->ItemType == ItemTypeAceType)
return 8;
if(pItemInfo->ItemType == ItemTypeUint16)
return 16;
if(pItemInfo->ItemType == ItemTypeUint32)
return 32;
if(pItemInfo->ItemType == ItemTypeUint64)
return 64;
return 256;
}
static void UpdateAceVariables(PACE pAce, LPBYTE pbPtr)
{
if(pAce != NULL)
{
LPBYTE pbAce = (LPBYTE)(pAce);
// Update the length of the ACE
pAce->Header.AceSize = (WORD)(pbPtr - pbAce);
// Update the ACL-in-work variables
if(pAclInWork != NULL)
{
// If the ACE is of ACCESS_ALLOWED_COMPOUND_ACE_TYPE, the ACL revision must be 3 or higher
if(pAce->Header.AceType == ACCESS_ALLOWED_COMPOUND_ACE_TYPE)
pAclInWork->AclRevision = max(pAclInWork->AclRevision, ACL_REVISION3);
// If the ACE is one of the object ACEs or later, raise the ACL revision
if(pAce->Header.AceType >= ACCESS_ALLOWED_OBJECT_ACE_TYPE)
pAclInWork->AclRevision = max(pAclInWork->AclRevision, ACL_REVISION_DS);
// Update the ACE count
pAclInWork->AceCount++;
}
}
}
// The item text is expected to be in format "Name: 0x12345678"
static LPTSTR GetItemTextValue(LPTSTR szItemText, bool bKeepQuotedPart = false)
{
LPTSTR szStringEnd;
LPTSTR szTextPtr;
// Retrieve the first occurence of ":"
if((szTextPtr = _tcschr(szItemText, _T(':'))) != NULL)
{
// Skip the colon
szItemText = szTextPtr + 1;
// Skip spaces
while(szItemText[0] == ' ')
szItemText++;
// Did we come across a quotation mark?
if(szItemText[0] == _T('\"'))
{
if((szStringEnd = _tcschr(szItemText + 1, _T('\"'))) > szItemText)
{
szStringEnd[0] = 0;
szItemText += 1;
}
}
// If the number is followed by a space, cut it
if(bKeepQuotedPart == false)
{
if((szTextPtr = _tcschr(szItemText, _T(' '))) != NULL)
{
szTextPtr[0] = 0;
}
}
}
// Return the text
return szItemText;
}
static bool TV_TextToEditText(const _TREE_ITEM_INFO * pItemInfo, LPTSTR szBuffer, size_t ccBuffer, LPCTSTR szItemText)
{
LPCTSTR szTextValue;
// Copy the entire text from the source to the target
StringCchCopy(szBuffer, ccBuffer, szItemText);
// Extract the text value from the item
szTextValue = GetItemTextValue(szBuffer, (pItemInfo->ItemType == ItemTypeCondition));
// Move the text value
if(szTextValue > szBuffer)
memmove(szBuffer, szTextValue, (_tcslen(szTextValue) + 1) * sizeof(TCHAR));
return true;
}
static void TV_MakeItemText(
PTREE_ITEM_INFO pItemInfo,
LPTSTR szBuffer,
size_t ccBuffer,
LPBYTE pbPtr,
LPBYTE pbEnd,
PULONG pcbMoveBy = NULL)
{
ULONG cbMoveBy = 0;
TCHAR szDataText[0x400] = {0};
UINT nIDFormat = pItemInfo->nIDFormat1;
bool bApplyIndex = false;
// Do we have data and format for it?
if(pItemInfo->nIDFormat2)
{
if(pItemInfo->ToString != NULL)
{
// Format the numeric or whatever value
if(NT_SUCCESS(pItemInfo->ToString(pItemInfo, szDataText, _countof(szDataText), pbPtr, pbEnd, &cbMoveBy)))
{
nIDFormat = pItemInfo->nIDFormat2;
bApplyIndex = true;
}
}
}
// Finally, format the data to the item
if(pcbMoveBy != NULL)
pcbMoveBy[0] = cbMoveBy;
// Format the final value
if(GLOBAL_ItemIndex != INVALID_ITEM_INDEX && bApplyIndex)
rsprintf(szBuffer, ccBuffer, nIDFormat, GLOBAL_ItemIndex, szDataText);
else
rsprintf(szBuffer, ccBuffer, nIDFormat, szDataText);
}
//-----------------------------------------------------------------------------
// Conversion of String <-> Integer Value (Hex)
template <typename INTEGER>
NTSTATUS ToString_Hex(PTREE_ITEM_INFO pItemInfo, LPTSTR szBuffer, size_t ccBuffer, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
ULONG64 dwIntValue = 0;
// Capture the integer value
if((pbPtr + sizeof(INTEGER)) > pbEnd)
return STATUS_BUFFER_OVERFLOW;
if(ccBuffer < (sizeof(INTEGER) * 2) + 1)
return STATUS_BUFFER_OVERFLOW;
dwIntValue = *(INTEGER *)(pbPtr);
// Write the "0x" prefix
StringCchCopyEx(szBuffer, ccBuffer, _T("0x"), &szBuffer, &ccBuffer, 0);
// Convert to string
Hex2TextXX(dwIntValue, szBuffer, sizeof(INTEGER));
// If the value has flags, we add the flags suffix
if(pItemInfo->pFlagInfos != NULL)
{
// Convert the flags to their text representations
TFlagString fs(pItemInfo->pFlagInfos, dwIntValue);
if(fs.GetConvertedFlagsCount())
{
StringCchCat(szBuffer, ccBuffer, _T(" "));
StringCchCat(szBuffer, ccBuffer, fs);
}
}
// Give the move by
if(pcbMoveBy != NULL)
pcbMoveBy[0] = sizeof(INTEGER);
return STATUS_SUCCESS;
}
template <typename INTEGER>
NTSTATUS StringTo_Hex(PTREE_ITEM_INFO /* pItemInfo */, LPCTSTR szString, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
LONGLONG dwIntValue;
if((pbPtr + sizeof(INTEGER)) <= pbEnd)
{
if(Text2Hex64(szString, &dwIntValue) == ERROR_SUCCESS)
{
// Copy the integer
*(INTEGER *)(pbPtr) = (INTEGER)(dwIntValue);
// Give the pcbMoveBy
if(pcbMoveBy != NULL)
pcbMoveBy[0] = sizeof(INTEGER);
return STATUS_SUCCESS;
}
}
return STATUS_BUFFER_OVERFLOW;
}
static NTSTATUS ToString_Hex1(PTREE_ITEM_INFO pItemInfo, LPTSTR szBuffer, size_t ccBuffer, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
return ToString_Hex<BYTE>(pItemInfo, szBuffer, ccBuffer, pbPtr, pbEnd, pcbMoveBy);
}
static NTSTATUS StringTo_Hex1(PTREE_ITEM_INFO pItemInfo, LPCTSTR szString, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
return StringTo_Hex<BYTE>(pItemInfo, szString, pbPtr, pbEnd, pcbMoveBy);
}
static NTSTATUS ToString_Hex2(PTREE_ITEM_INFO pItemInfo, LPTSTR szBuffer, size_t ccBuffer, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
return ToString_Hex<WORD>(pItemInfo, szBuffer, ccBuffer, pbPtr, pbEnd, pcbMoveBy);
}
static NTSTATUS StringTo_Hex2(PTREE_ITEM_INFO pItemInfo, LPCTSTR szString, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
return StringTo_Hex<WORD>(pItemInfo, szString, pbPtr, pbEnd, pcbMoveBy);
}
static NTSTATUS ToString_Hex4(PTREE_ITEM_INFO pItemInfo, LPTSTR szBuffer, size_t ccBuffer, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
return ToString_Hex<DWORD>(pItemInfo, szBuffer, ccBuffer, pbPtr, pbEnd, pcbMoveBy);
}
static NTSTATUS StringTo_Hex4(PTREE_ITEM_INFO pItemInfo, LPCTSTR szString, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
return StringTo_Hex<DWORD>(pItemInfo, szString, pbPtr, pbEnd, pcbMoveBy);
}
static NTSTATUS ToString_Hex8(PTREE_ITEM_INFO pItemInfo, LPTSTR szBuffer, size_t ccBuffer, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
return ToString_Hex<DWORD64>(pItemInfo, szBuffer, ccBuffer, pbPtr, pbEnd, pcbMoveBy);
}
static NTSTATUS StringTo_Hex8(PTREE_ITEM_INFO pItemInfo, LPCTSTR szString, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
return StringTo_Hex<DWORD64>(pItemInfo, szString, pbPtr, pbEnd, pcbMoveBy);
}
// For fields that are auto-calculated, such as ACE_HEADER::AceSize
static NTSTATUS StringTo_Auto(PTREE_ITEM_INFO pItemInfo, LPCTSTR /* szString */, LPBYTE /* pbPtr */, LPBYTE /* pbEnd */, PULONG pcbMoveBy = NULL)
{
if(pcbMoveBy != NULL)
pcbMoveBy[0] = (pItemInfo->ItemType == ItemTypeUint16) ? sizeof(USHORT) : sizeof(DWORD);
return (pAclInWork || pAceInWork) ? STATUS_SUCCESS : STATUS_AUTO_CALCULATED;
}
//-----------------------------------------------------------------------------
// Conversion of String <-> Trust Level
static bool ToString_TrustLevel(PTREE_ITEM_INFO /* pItemInfo */, LPTSTR szBuffer, size_t ccBuffer, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
LPDWORD PtrTrustLevels = (LPDWORD)(pbPtr);
LPTSTR szBuffEnd = szBuffer + ccBuffer - 1;
ULONG cbMoveBy = 0;
if((pbPtr + sizeof(DWORD64)) <= pbEnd)
{
// Write the 64-bit value
StringCchPrintfEx(szBuffer, (szBuffEnd - szBuffer), &szBuffer, NULL, 0, _T("%x-%x "), PtrTrustLevels[0], PtrTrustLevels[1]);
// Write the trust levels
szBuffer = FlagsToString(PsTrustTypes, szBuffer, (szBuffEnd - szBuffer), *(LPDWORD)(pbPtr + 0));
StringCchCatEx(szBuffer, (szBuffEnd - szBuffer), _T("/"), &szBuffer, NULL, 0);
szBuffer = FlagsToString(PsTrustLevels, szBuffer, (szBuffEnd - szBuffer), *(LPDWORD)(pbPtr + 4));
cbMoveBy = sizeof(DWORD64);
}
// Give the pcbMoveBy
if(pcbMoveBy != NULL)
pcbMoveBy[0] = cbMoveBy;
return (cbMoveBy != 0);
}
static NTSTATUS StringTo_TrustLevel(PTREE_ITEM_INFO /* pItemInfo */, LPCTSTR szString, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
LPTSTR szHiPart;
LPTSTR szLoPart;
NTSTATUS Status = STATUS_UNSUCCESSFUL;
DWORD TrustLevel[2];
TCHAR szBuffer[0x40];
if((pbPtr + sizeof(DWORD64)) <= pbEnd)
{
StringCchCopy(szBuffer, _countof(szBuffer), szString);
szHiPart = szBuffer;
if((szLoPart = _tcschr(szHiPart, _T('-'))) != NULL)
{
*szLoPart++ = 0;
if(Text2Hex32(szHiPart, &TrustLevel[0]) == ERROR_SUCCESS &&
Text2Hex32(szLoPart, &TrustLevel[1]) == ERROR_SUCCESS)
{
if(pcbMoveBy != NULL)
pcbMoveBy[0] = sizeof(DWORD64);
memcpy(pbPtr, TrustLevel, sizeof(TrustLevel));
Status = STATUS_SUCCESS;
}
}
}
return Status;
}
//-----------------------------------------------------------------------------
// Conversion of String <-> Binary Data: BOOL
static NTSTATUS ToString_Bool(PTREE_ITEM_INFO /* pItemInfo */, LPTSTR szBuffer, size_t ccBuffer, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
if((pbPtr + sizeof(BYTE)) > pbEnd)
return STATUS_BUFFER_OVERFLOW;
if(pcbMoveBy != NULL)
pcbMoveBy[0] = sizeof(BYTE);
StringCchCopy(szBuffer, ccBuffer, pbPtr[0] ? _T("TRUE") : _T("FALSE"));
return STATUS_SUCCESS;
}
static NTSTATUS StringTo_Bool(PTREE_ITEM_INFO pItemInfo, LPCTSTR szString, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
NTSTATUS Status;
BYTE FalseValue = 0;
BYTE TrueValue = 1;
BYTE ItemValue[1];
// Check for TRUE / FALSE
if(!_tcsicmp(szString, _T("FALSE")) || !_tcsicmp(szString, _T("OFF")))
return CopyDataAway(pbPtr, pbEnd, &FalseValue, sizeof(FalseValue), pcbMoveBy);
if(!_tcsicmp(szString, _T("TRUE")) || !_tcsicmp(szString, _T("ON")))
return CopyDataAway(pbPtr, pbEnd, &TrueValue, sizeof(TrueValue), pcbMoveBy);
// Try numeric value. If nonzero, it's TRUE, if not, it's FALSE
if((Status = StringTo_Hex1(pItemInfo, szString, &ItemValue[0], &ItemValue[1])) == STATUS_SUCCESS)
{
if(ItemValue[0] == 0)
return CopyDataAway(pbPtr, pbEnd, &FalseValue, sizeof(FalseValue), pcbMoveBy);
else
return CopyDataAway(pbPtr, pbEnd, &TrueValue, sizeof(TrueValue), pcbMoveBy);
}
return Status;
}
//-----------------------------------------------------------------------------
// Conversion of LPWSTR to string
static NTSTATUS ToString_STR(PTREE_ITEM_INFO /* pItemInfo */, LPTSTR szBuffer, size_t ccBuffer, LPBYTE pbPtr, LPBYTE /* pbEnd */, PULONG pcbMoveBy = NULL)
{
LPWSTR szString = (LPWSTR)(pbPtr);
if(pcbMoveBy != NULL)
pcbMoveBy[0] = (ULONG)((wcslen(szString) + 1) * sizeof(WCHAR));
StringCchPrintf(szBuffer, ccBuffer, _T("\"%s\""), szString);
return STATUS_SUCCESS;
}
static NTSTATUS StringTo_STR(PTREE_ITEM_INFO /* pItemInfo */, LPCTSTR szString, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
ULONG cbString = (ULONG)((wcslen(szString) + 1) * sizeof(WCHAR));
return CopyDataAway(pbPtr, pbEnd, szString, cbString, pcbMoveBy);
}
//-----------------------------------------------------------------------------
// Conversion of String <-> Binary Data: SID
static TREE_ITEM_INFO ItemType_IntLevel = {ItemTypeUint32, 0, IDS_FORMAT_INT_LEVEL, IntgrLevels};
static TREE_ITEM_INFO ItemType_PolicyId = {ItemTypeUint32, 0, IDS_FORMAT_POLICY_ID};
static TREE_ITEM_INFO ItemType_TrustLev = {ItemTypeUint64, 0, IDS_FORMAT_TRUST_LEVEL};
static NTSTATUS ToString_Sid(PTREE_ITEM_INFO /* pItemInfo */, LPTSTR szBuffer, size_t ccBuffer, LPBYTE pbPtr, LPBYTE pbEnd, PULONG pcbMoveBy = NULL)
{
NTSTATUS Status = STATUS_SUCCESS;
ULONG cbMoveBy = 0;
// If there is a SID, format it to the buffer
if(pbPtr != NULL)
{
if((pbPtr + 8) <= pbEnd)
{
PSID_IDENTIFIER_AUTHORITY pSia;
LPBYTE pbIntValue;
PSID pSid = (PSID)(pbPtr);
// Determine the SID type by the authority
pSia = GetSidIdentifierAuthority(pSid);
// Is it a mandatory label?
if(!memcmp(pSia, &SiaLabel, sizeof(SID_IDENTIFIER_AUTHORITY)))
{
if((pbIntValue = GetSidIntegrityLevel(pSid)) != NULL)
ToString_Hex4(&ItemType_IntLevel, szBuffer, ccBuffer, pbIntValue, pbIntValue + sizeof(DWORD));
cbMoveBy = RtlLengthSid(pSid);
}
else if(!memcmp(pSia, &SiaPolicy, sizeof(SID_IDENTIFIER_AUTHORITY)))
{
if((pbIntValue = GetSidScopedPolicyId(pSid)) != NULL)
ToString_Hex4(&ItemType_PolicyId, szBuffer, ccBuffer, pbIntValue, pbIntValue + sizeof(DWORD));
cbMoveBy = RtlLengthSid(pSid);
}
else if(!memcmp(pSia, &SiaTrust, sizeof(SID_IDENTIFIER_AUTHORITY)))
{
if((pbIntValue = GetSidProcessTrustLevel(pSid)) != NULL)
ToString_TrustLevel(&ItemType_TrustLev, szBuffer, ccBuffer, pbIntValue, pbIntValue + sizeof(ULONG64));
cbMoveBy = RtlLengthSid(pSid);
}
else
{
SidToString(pSid, szBuffer, ccBuffer, true);
cbMoveBy = RtlLengthSid(pSid);
}
}
else
{
Status = STATUS_INVALID_PARAMETER;
}