CVE-2025-1041

9.9 CRITICAL

📋 TL;DR

An improper input validation vulnerability in Avaya Call Management System allows remote attackers to execute arbitrary commands via specially crafted web requests. This affects all systems running vulnerable versions of the software, potentially compromising entire telephony management infrastructure.

💻 Affected Systems

Products:
  • Avaya Call Management System
Versions: 18.x, 19.x prior to 19.2.0.7, 20.x prior to 20.0.1.0
Operating Systems: Not specified - likely runs on various platforms
Default Config Vulnerable: ⚠️ Yes
Notes: All installations with web interface enabled are vulnerable. No special configuration required for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise allowing attacker to execute arbitrary commands with system privileges, potentially leading to data exfiltration, ransomware deployment, or lateral movement to other systems.

🟠

Likely Case

Remote code execution leading to unauthorized access, data theft, or disruption of call management services.

🟢

If Mitigated

Limited impact with proper network segmentation and access controls, potentially only affecting isolated management components.

🌐 Internet-Facing: HIGH - Web interface accessible remotely makes exploitation trivial if exposed to internet.
🏢 Internal Only: HIGH - Even internally, any network-accessible system remains vulnerable to authenticated or unauthenticated attacks.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

CVSS 9.9 indicates trivial exploitation with high impact. No authentication required based on description.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 19.2.0.7 for 19.x, 20.0.1.0 for 20.x, 18.x users should upgrade to supported version

Vendor Advisory: https://support.avaya.com/css/public/documents/101093084

Restart Required: Yes

Instructions:

1. Download appropriate patch from Avaya support portal. 2. Backup current configuration. 3. Apply patch following vendor instructions. 4. Restart system. 5. Verify patch installation.

🔧 Temporary Workarounds

Network Segmentation

all

Restrict access to CMS web interface using firewall rules

Web Interface Disable

all

Disable web management interface if not required

🧯 If You Can't Patch

  • Implement strict network access controls to limit CMS web interface access to trusted IPs only
  • Deploy web application firewall with command injection protection rules

🔍 How to Verify

Check if Vulnerable:

Check CMS version via web interface or CLI. If version matches affected range, system is vulnerable.

Check Version:

Check via web interface admin panel or consult Avaya documentation for CLI version check

Verify Fix Applied:

Verify version is 19.2.0.7 or higher for 19.x, or 20.0.1.0 or higher for 20.x. 18.x requires upgrade to supported version.

📡 Detection & Monitoring

Log Indicators:

  • Unusual web requests to CMS interface
  • Command execution patterns in system logs
  • Unauthorized configuration changes

Network Indicators:

  • Suspicious HTTP requests to CMS web endpoints
  • Unexpected outbound connections from CMS system

SIEM Query:

source="cms_web_logs" AND (url="*cmd*" OR url="*exec*" OR url="*system*" OR url="*shell*")

🔗 References

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