CVE-2025-2494
📋 TL;DR
CVE-2025-2494 allows unrestricted file upload in Softdial Contact Center via the '/softdial/phpconsole/upload.php' endpoint, which is protected only by basic HTTP authentication. Attackers can upload malicious files to a web-accessible directory, potentially leading to remote code execution and full server compromise. Organizations using vulnerable versions of Softdial Contact Center are affected.
💻 Affected Systems
- Softdial Contact Center (SCC) by Sytel Ltd
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full server compromise with remote code execution, allowing attackers to steal data, deploy ransomware, or pivot to other systems.
Likely Case
Webshell deployment leading to data exfiltration, credential theft, and lateral movement within the network.
If Mitigated
Limited impact if proper authentication controls and file validation are in place, though basic HTTP auth is weak.
🎯 Exploit Status
Exploitation requires bypassing basic HTTP authentication, which is trivial with tools like Hydra or if credentials are weak/default. Once authenticated, file upload is straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in reference; check vendor advisory for exact version.
Vendor Advisory: https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-softdial-contact-center
Restart Required: Yes
Instructions:
1. Contact Sytel Ltd for the latest patched version. 2. Backup configuration and data. 3. Apply the patch according to vendor instructions. 4. Restart the Softdial Contact Center service. 5. Verify the fix by testing the upload endpoint.
🔧 Temporary Workarounds
Disable or Restrict Upload Endpoint
allBlock access to the vulnerable '/softdial/phpconsole/upload.php' endpoint using web server rules or firewall.
For Apache: add 'Deny from all' to .htaccess in the phpconsole directory
For Nginx: add 'location /softdial/phpconsole/upload.php { deny all; }' to server config
Strengthen Authentication
allEnforce strong passwords for basic HTTP authentication and implement account lockout policies.
Use htpasswd to update passwords: 'htpasswd -c /path/to/.htpasswd username'
Configure web server to require strong auth (e.g., Apache AuthType Basic with AuthUserFile)
🧯 If You Can't Patch
- Implement network segmentation to isolate the Softdial Contact Center server from critical systems.
- Deploy a Web Application Firewall (WAF) with rules to block file uploads to the vulnerable endpoint.
🔍 How to Verify
Check if Vulnerable:
Attempt to access https://<server>/softdial/phpconsole/upload.php with basic auth; if it accepts file uploads without validation, it's vulnerable.Check Version:
Check the Softdial Contact Center admin interface or consult vendor documentation for version info; command may vary by installation.Verify Fix Applied:
After patching, test the upload endpoint to ensure it rejects malicious files or requires stronger authentication.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to '/softdial/phpconsole/upload.php'
- Failed authentication attempts followed by successful uploads
- Log entries showing file uploads with extensions like .php, .jsp, or .war
Network Indicators:
- HTTP traffic to the upload endpoint with file upload patterns
- Outbound connections from the server post-exploit
SIEM Query:
source="web_logs" AND url="/softdial/phpconsole/upload.php" AND (method="POST" OR status=200)