CVE-2024-54032

9.3 CRITICAL

📋 TL;DR

Adobe Connect versions 12.6, 11.4.7 and earlier contain a stored Cross-Site Scripting (XSS) vulnerability where attackers can inject malicious scripts into form fields. When users visit pages with these compromised fields, their browsers execute the malicious JavaScript, potentially leading to session hijacking. This affects all organizations running vulnerable Adobe Connect instances.

💻 Affected Systems

Products:
  • Adobe Connect
Versions: 12.6, 11.4.7 and earlier versions
Operating Systems: All platforms running Adobe Connect
Default Config Vulnerable: ⚠️ Yes
Notes: All deployments of affected versions are vulnerable regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete session takeover allowing attacker to impersonate administrators, steal sensitive meeting data, and pivot to internal network resources.

🟠

Likely Case

Session hijacking of regular users leading to unauthorized access to meetings, recordings, and participant information.

🟢

If Mitigated

Limited impact with proper input validation and output encoding, though stored XSS remains dangerous.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Stored XSS vulnerabilities are commonly exploited; attacker needs access to inject into vulnerable form fields.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Adobe Connect 12.7 and 11.4.8

Vendor Advisory: https://helpx.adobe.com/security/products/connect/apsb24-99.html

Restart Required: Yes

Instructions:

1. Download Adobe Connect 12.7 or 11.4.8 from Adobe's official site. 2. Backup current installation and data. 3. Run the installer following Adobe's upgrade documentation. 4. Restart the Adobe Connect service.

🔧 Temporary Workarounds

Input Validation Filter

all

Implement server-side input validation to sanitize all user inputs before storage.

Implementation varies by application framework - requires code changes

Content Security Policy

all

Deploy strict Content Security Policy headers to limit script execution.

Content-Security-Policy: default-src 'self'; script-src 'self'

🧯 If You Can't Patch

  • Implement Web Application Firewall (WAF) rules to block XSS payloads
  • Disable or restrict access to vulnerable form fields in the application

🔍 How to Verify

Check if Vulnerable:

Check Adobe Connect version in administration panel or via version file in installation directory.

Check Version:

Check Admin panel > About or examine version.txt in installation directory

Verify Fix Applied:

Verify version is 12.7 or higher, or 11.4.8 or higher, and test form fields for XSS payload acceptance.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to form endpoints with script tags
  • Multiple failed login attempts from new sessions

Network Indicators:

  • HTTP requests containing JavaScript payloads in parameters
  • Unexpected outbound connections from user browsers

SIEM Query:

source="adobe_connect" AND (http_method="POST" AND (uri_path="*form*" OR uri_path="*save*")) AND (http_query="*<script>*" OR http_body="*<script>*")

🔗 References

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