CVE-2025-65832

Executive Summary

CVE-2025-65832 exposes a critical security flaw in the Meatmeet mobile application, where sensitive data—including Wi-Fi credentials and JSON Web Tokens (JWTs)—is stored insecurely in memory. An attacker with physical access to a victim’s device can perform a memory dump after the user has logged out and terminated the app, retrieving these credentials. This enables unauthorized access to the victim’s home Wi-Fi network and Meatmeet account. The vulnerability is currently unpatched, with no known public exploit code or detection rules available.

Supply Chain & Package Security

This vulnerability is not related to a package manager (NPM, PyPI, Go, Ruby) but is specific to the Meatmeet mobile application’s internal memory handling. No supply chain implications are identified.

CVSS Breakdown & Threat Level

• Attack Vector (AV): Physical (AV:P) – Requires physical access to the device.
• Attack Complexity (AC): Low (AC:L) – Memory dump tools are readily available.
• Privileges Required (PR): None (PR:N) – No authentication needed.
• User Interaction (UI): None (UI:N) – No user action required after app termination.
• Scope (S): Unchanged (S:U) – The vulnerable component is the app itself.
• Confidentiality (C): High (C:H) – Full disclosure of Wi-Fi credentials and JWTs.
• Integrity (I): High (I:H) – Attacker can modify account settings or network configurations.
• Availability (A): High (A:H) – Potential denial of service via credential misuse.

CVSS Score: 6.8 (Medium) – Physical access requirement reduces severity, but impact is high.

Deep Dive & Mechanics

The vulnerability stems from the Meatmeet mobile application’s failure to clear sensitive data from memory after use. When the app pairs with a Meatmeet IoT device, Wi-Fi credentials are transmitted and stored in memory for the pairing process. Additionally, JWTs used for authentication are retained in memory even after the user logs out and terminates the app. A memory dump (e.g., using fridump or memdump) can extract this data from the device’s RAM.

Attack Flow:

1. Attacker gains physical access to the victim’s unlocked or recently used device.
2. Attacker performs a memory dump using tools like fridump (for Android/iOS) or volatility (for rooted devices).
3. Attacker parses the dump for strings matching patterns like "ssid", "password", "jwt", or "authorization".
4. Extracted Wi-Fi credentials allow network access; JWTs enable account takeover.

Root Cause: The app does not zero out memory buffers after use, leaving sensitive data in the heap.

Vulnerable vs. Patched Code

Since no patch is available, the vulnerable code pattern is described below. A patched version would clear memory after use.

Vulnerable Code (Conceptual):

// Insecure: Stores Wi-Fi credentials in a string
String wifiSSID = "HomeNetwork";
String wifiPassword = "Secret123";
// Pairing process uses these strings
pairDevice(wifiSSID, wifiPassword);
// After pairing, strings remain in memory

Patched Code (Conceptual):

// Secure: Overwrite memory after use
char[] wifiSSID = "HomeNetwork".toCharArray();
char[] wifiPassword = "Secret123".toCharArray();
pairDevice(wifiSSID, wifiPassword);
// Clear memory
Arrays.fill(wifiSSID, '0');
Arrays.fill(wifiPassword, '0');

Exploitation & Lab Setup

Red Team

Prerequisites:

• Physical access to a victim’s device (Android/iOS) with Meatmeet app installed.
• Device must be unlocked or have debugging enabled.
• Tools: fridump (for Android), frida-ios-dump (for iOS), or volatility (for rooted devices).

Exploitation Steps:

1. Connect the device to a computer via USB.
2. Enable USB debugging (Android) or install Frida server (iOS).
3. Run fridump to dump the app’s memory:

   fridump -U -a com.meatmeet.app -o dump_output
   

4. Search for sensitive data in the dump:

   strings dump_output/*.dump | grep -E "(ssid|password|jwt|authorization)"
   

5. Use extracted JWTs to authenticate to the Meatmeet API:

   curl -H "Authorization: Bearer <JWT>" https://api.meatmeet.com/account
   

Blue Team

Detection:

• Monitor for physical access attempts to devices (e.g., via MDM logs).
• Use endpoint detection tools to flag memory dump tools (e.g., fridump, volatility).
• Implement app-level runtime protection (e.g., Frida detection, root/jailbreak detection).

Mitigation:

• Enforce device encryption and lock screen policies.
• Use app wrapping to clear memory on app termination.
• Implement certificate pinning to prevent JWT reuse.

Indicators of Compromise (IOCs)

• File Hashes: None available (no public exploit).
• Network Indicators:
  • Unauthorized API calls to api.meatmeet.com with stolen JWTs.
  • Traffic from unknown IPs to the victim’s Wi-Fi network.
• Device Indicators:
  • Presence of memory dump tools (fridump, volatility).
  • Unusual USB debugging activity.
• Behavioral:
  • Sudden account password changes or device unpairing.

Detection Engineering

YARA Rule

rule CVE_2025_65832_Meatmeet_Memory_Dump
{
    meta:
        description = "Detects memory dumps containing Meatmeet Wi-Fi credentials or JWTs"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-65832"
    strings:
        $wifi_ssid = /ssid:\s*[a-zA-Z0-9_-]+/ nocase
        $wifi_pass = /password:\s*[a-zA-Z0-9!@#$%^&*()_+]+/ nocase
        $jwt = /eyJ[a-zA-Z0-9_-]+\.[a-zA-Z0-9_-]+\.[a-zA-Z0-9_-]+/
        $meatmeet = /Meatmeet/i
    condition:
        any of ($wifi_ssid, $wifi_pass, $jwt) and $meatmeet
}

Sigma Rule

title: Meatmeet Memory Dump Detection
id: 7a8b9c0d-1e2f-3a4b-5c6d-7e8f9a0b1c2d
status: experimental
description: Detects memory dump tools or processes that may extract Meatmeet credentials
author: Valters IT
date: 2025-04-10
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith:
            - '\fridump.exe'
            - '\volatility.exe'
            - '\memdump.exe'
    condition: selection
falsepositives:
    - Legitimate forensic analysis
level: high

Suricata Rule

alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"CVE-2025-65832 Meatmeet JWT Exfiltration"; flow:to_server,established; content:"Authorization"; nocase; content:"Bearer"; distance:0; content:"eyJ"; distance:0; pcre:"/eyJ[a-zA-Z0-9_-]+\.[a-zA-Z0-9_-]+\.[a-zA-Z0-9_-]+/R"; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Clear App Memory: Manually force-stop the app and clear its cache after use.
2. Device Security: Enable full-disk encryption and lock screen with strong PIN.
3. Network Monitoring: Monitor for unauthorized access to Wi-Fi networks.

Long-Term Fixes:

• Vendor Patch: Meatmeet must release an update that zeroes out memory buffers after pairing and logout.
• Code Hardening: Use SecureString (C#) or char[] with explicit clearing (Java).
• Runtime Protection: Implement Frida detection and root/jailbreak checks.

Workarounds:

• Use a separate IoT network with limited access.
• Rotate Wi-Fi credentials regularly.

Valters IT