CVE-2024-49553

7.8 HIGH

📋 TL;DR

This CVE describes an out-of-bounds write vulnerability in Adobe Media Encoder that could allow arbitrary code execution when a user opens a malicious file. The vulnerability affects users running vulnerable versions of Media Encoder on any operating system where the software is installed. Successful exploitation requires user interaction to open a specially crafted file.

💻 Affected Systems

Products:
  • Adobe Media Encoder
Versions: 25.0, 24.6.3 and earlier
Operating Systems: Windows, macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All installations of affected versions are vulnerable by default when processing malicious files.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with attacker gaining the same privileges as the current user, potentially leading to data theft, ransomware deployment, or persistent backdoor installation.

🟠

Likely Case

Local privilege escalation or malware execution in the user context, potentially compromising sensitive files and enabling lateral movement within the network.

🟢

If Mitigated

Limited impact with proper application sandboxing and user privilege restrictions, potentially containing the exploit to the application's context.

🌐 Internet-Facing: LOW - Exploitation requires user interaction with malicious files, not network-accessible services.
🏢 Internal Only: MEDIUM - Risk exists primarily from internal users opening malicious files received via email, downloads, or shared drives.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires user interaction (opening malicious file) and knowledge of file format manipulation.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 25.1 and later, 24.6.4 and later

Vendor Advisory: https://helpx.adobe.com/security/products/media-encoder/apsb24-93.html

Restart Required: Yes

Instructions:

1. Open Adobe Creative Cloud application. 2. Navigate to 'Apps' section. 3. Find Media Encoder and click 'Update'. 4. Follow prompts to install latest version. 5. Restart computer after installation.

🔧 Temporary Workarounds

Restrict file processing

all

Configure Media Encoder to only process files from trusted sources using application restrictions or group policies.

Run with reduced privileges

windows

Configure Media Encoder to run with standard user privileges instead of administrative rights.

🧯 If You Can't Patch

  • Implement application control policies to restrict Media Encoder execution to approved systems only
  • Deploy endpoint protection with behavioral analysis to detect and block exploit attempts

🔍 How to Verify

Check if Vulnerable:

Check Media Encoder version in Help > About Media Encoder. If version is 25.0, 24.6.3 or earlier, system is vulnerable.

Check Version:

On Windows: Check Help > About Media Encoder. On macOS: Adobe Media Encoder > About Media Encoder

Verify Fix Applied:

Verify version is 25.1 or later, or 24.6.4 or later after updating through Adobe Creative Cloud.

📡 Detection & Monitoring

Log Indicators:

  • Application crashes with memory access violations
  • Unusual file processing from untrusted sources
  • Suspicious child processes spawned from Media Encoder

Network Indicators:

  • Outbound connections to suspicious IPs after file processing
  • DNS requests to malicious domains following Media Encoder execution

SIEM Query:

source="*MediaEncoder*" AND (event_type="crash" OR process_name="suspicious.exe")

🔗 References

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