CVE-2024-53955
📋 TL;DR
CVE-2024-53955 is an integer underflow vulnerability in Adobe Bridge that could allow arbitrary code execution when a user opens a malicious file. This affects Adobe Bridge versions 14.1.3, 15.0 and earlier. Successful exploitation requires user interaction but would execute code with the current user's privileges.
💻 Affected Systems
- Adobe Bridge
📦 What is this software?
Bridge by Adobe
Bridge by Adobe
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise via arbitrary code execution with the current user's privileges, potentially leading to data theft, ransomware deployment, or lateral movement.
Likely Case
Malicious actor tricks user into opening a specially crafted file, leading to malware installation or data exfiltration from the user's system.
If Mitigated
Limited impact due to user awareness training, application sandboxing, and restricted user privileges preventing system-wide compromise.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file). No public exploit code available at time of advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Bridge 15.0.1 or later
Vendor Advisory: https://helpx.adobe.com/security/products/bridge/apsb24-103.html
Restart Required: Yes
Instructions:
1. Open Adobe Creative Cloud desktop app. 2. Navigate to 'Apps' tab. 3. Find Adobe Bridge and click 'Update'. 4. Restart Bridge after update completes.
🔧 Temporary Workarounds
Disable Bridge file opening
allPrevent Bridge from being used to open files by changing default file associations
Windows: Control Panel > Default Programs > Set Associations
macOS: Finder > Get Info > Open With > Change All
🧯 If You Can't Patch
- Restrict user privileges to limit impact of code execution
- Implement application control to block Bridge execution entirely
🔍 How to Verify
Check if Vulnerable:
Check Bridge version in Help > About Adobe Bridge. If version is 14.1.3, 15.0 or earlier, system is vulnerable.Check Version:
Windows: "C:\Program Files\Adobe\Adobe Bridge\Bridge.exe" --version (if available) or check in Help menuVerify Fix Applied:
Verify Bridge version is 15.0.1 or later in Help > About Adobe Bridge.📡 Detection & Monitoring
Log Indicators:
- Unexpected Bridge crashes
- Bridge processes spawning unusual child processes
- File access to suspicious file types
Network Indicators:
- Bridge process making unexpected network connections after file open
SIEM Query:
process_name:"Bridge.exe" AND (event_type:process_creation OR event_type:crash)