CVE-2020-9567
📋 TL;DR
CVE-2020-9567 is a use-after-free vulnerability in Adobe Bridge that allows attackers to execute arbitrary code on affected systems. This affects users running Adobe Bridge versions 10.0.1 and earlier. Successful exploitation could give attackers control over the victim's system.
💻 Affected Systems
- Adobe Bridge
📦 What is this software?
Bridge by Adobe
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining complete control, data theft, ransomware deployment, and lateral movement within the network.
Likely Case
Local privilege escalation leading to malware installation, data exfiltration, and persistence mechanisms being established.
If Mitigated
Limited impact through application sandboxing or restricted user privileges, potentially only causing application crashes.
🎯 Exploit Status
Exploitation requires user interaction to open a malicious file. Memory corruption vulnerabilities in Adobe products are frequently weaponized.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Adobe Bridge 10.1 and later
Vendor Advisory: https://helpx.adobe.com/security/products/bridge/apsb20-19.html
Restart Required: Yes
Instructions:
1. Open Adobe Bridge. 2. Go to Help > Updates. 3. Follow prompts to update to version 10.1 or later. 4. Restart Adobe Bridge after installation.
🔧 Temporary Workarounds
Disable Adobe Bridge file associations
allPrevent Adobe Bridge from automatically opening potentially malicious files
Windows: Control Panel > Default Programs > Associate a file type or protocol with a program
macOS: Right-click file > Get Info > Open With > Change All
Restrict user privileges
allRun Adobe Bridge with limited user privileges to reduce impact
🧯 If You Can't Patch
- Block execution of Adobe Bridge via application control/whitelisting
- Implement network segmentation to limit lateral movement from compromised systems
🔍 How to Verify
Check if Vulnerable:
Check Adobe Bridge version: Open Adobe Bridge > Help > About Adobe BridgeCheck Version:
Adobe Bridge does not have a command-line version check. Use GUI: Help > About Adobe BridgeVerify Fix Applied:
Verify version is 10.1 or higher in About Adobe Bridge dialog📡 Detection & Monitoring
Log Indicators:
- Adobe Bridge crash logs with memory access violations
- Unexpected child processes spawned from Adobe Bridge
Network Indicators:
- Outbound connections from Adobe Bridge to suspicious IPs
- DNS queries for command and control domains
SIEM Query:
process_name:"Adobe Bridge.exe" AND (event_id:1000 OR event_id:1001) OR parent_process_name:"Adobe Bridge.exe" AND process_creation