CVE-2020-9565

7.8 HIGH

📋 TL;DR

Adobe Bridge versions 10.0.1 and earlier contain an out-of-bounds write vulnerability that could allow attackers to execute arbitrary code on affected systems. This affects users running vulnerable versions of Adobe Bridge on any operating system. Successful exploitation requires user interaction, such as opening a malicious file.

💻 Affected Systems

Products:
  • Adobe Bridge
Versions: 10.0.1 and earlier
Operating Systems: Windows, macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All installations of affected versions are vulnerable by default; no special configuration required for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise with attacker gaining the same privileges as the logged-in user, potentially leading to data theft, ransomware deployment, or lateral movement within the network.

🟠

Likely Case

Local privilege escalation or arbitrary code execution within the context of the Adobe Bridge application, potentially leading to data exfiltration or malware installation.

🟢

If Mitigated

Limited impact due to proper patching, application sandboxing, or restricted user privileges preventing system-wide compromise.

🌐 Internet-Facing: LOW - Adobe Bridge is not typically an internet-facing service; exploitation requires local access or user interaction with malicious files.
🏢 Internal Only: MEDIUM - Internal users could be targeted via phishing or malicious files, potentially leading to lateral movement within the network.

🎯 Exploit Status

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

Exploitation requires user interaction (opening malicious file) and knowledge of memory corruption techniques. No public exploits were confirmed at advisory publication.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 10.0.2 or 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 10.0.2 or later. 4. Restart the application.

🔧 Temporary Workarounds

Restrict file types

all

Block or restrict opening of untrusted file types in Adobe Bridge

Run with reduced privileges

all

Configure Adobe Bridge to run with limited user permissions

🧯 If You Can't Patch

  • Disable Adobe Bridge entirely if not required for business operations
  • Implement application whitelisting to prevent execution of unauthorized code

🔍 How to Verify

Check if Vulnerable:

Check Adobe Bridge version: Open Adobe Bridge > Help > About Adobe Bridge. If version is 10.0.1 or earlier, system is vulnerable.

Check Version:

On Windows: wmic product where name="Adobe Bridge" get version
On macOS: /Applications/Adobe Bridge/Adobe Bridge.app/Contents/Info.plist | grep -A1 CFBundleShortVersionString

Verify Fix Applied:

Verify version is 10.0.2 or later in Help > About Adobe Bridge. Test with known safe files to ensure application functions normally.

📡 Detection & Monitoring

Log Indicators:

  • Application crashes in Adobe Bridge logs
  • Unusual file access patterns from Adobe Bridge process

Network Indicators:

  • Unexpected outbound connections from Adobe Bridge process
  • DNS requests to suspicious domains

SIEM Query:

process_name:"Adobe Bridge" AND (event_type:crash OR parent_process:explorer.exe)

🔗 References

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