CVE-2024-27708
📋 TL;DR
This CVE describes an iframe injection vulnerability in MyNET v.26.06 and earlier that allows remote attackers to execute arbitrary code via the src parameter. The vulnerability affects users of MyNET software from airc.pt, potentially enabling complete system compromise.
💻 Affected Systems
- MyNET
📦 What is this software?
Mynet by Airc
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full system compromise, data theft, ransomware deployment, or creation of persistent backdoors.
Likely Case
Attackers inject malicious iframes to execute JavaScript or redirect users to phishing sites, potentially stealing credentials or session cookies.
If Mitigated
With proper input validation and output encoding, the vulnerability would be prevented, limiting impact to minor UI issues.
🎯 Exploit Status
The vulnerability appears to be in a web parameter, suggesting straightforward exploitation via crafted URLs.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.airc.pt/solucoes-servicos/solucoes?segment=MYN
Restart Required: No
Instructions:
1. Contact vendor for patched version. 2. Apply update when available. 3. Test functionality after update.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side validation to reject malicious src parameter values containing iframe or script tags
WAF Rule
allDeploy web application firewall rules to block requests containing suspicious iframe injection patterns
🧯 If You Can't Patch
- Isolate affected systems from internet access
- Implement strict network segmentation and monitor for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Test by attempting to inject iframe tags via the src parameter and observing if they executeCheck Version:
Check MyNET version in application interface or configuration filesVerify Fix Applied:
Retest injection attempts after applying fixes to confirm they are properly sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual src parameter values containing iframe tags
- Multiple failed injection attempts
Network Indicators:
- HTTP requests with suspicious src parameters
- Unexpected iframe loads in web traffic
SIEM Query:
web.url:*/solucoes-servicos.solucoes* AND web.param.src:*iframe*