CVE-2025-27419
📋 TL;DR
CVE-2025-27419 is a denial-of-service vulnerability in WeGIA web management software that allows unauthenticated attackers to crash servers through aggressive spidering. The vulnerability affects all WeGIA users running vulnerable versions by exploiting recursive URL crawling and insufficient request handling. This can render WeGIA instances completely unresponsive.
💻 Affected Systems
- WeGIA
📦 What is this software?
Wegia by Wegia
⚠️ Risk & Real-World Impact
Worst Case
Complete service outage making WeGIA unavailable to all users, potentially requiring server restart and causing extended downtime.
Likely Case
Temporary service degradation or unresponsiveness during attack periods, disrupting institutional operations.
If Mitigated
Minimal impact with proper rate limiting and request filtering in place.
🎯 Exploit Status
Simple automated tools can exploit this vulnerability without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.2.16
Vendor Advisory: https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-9rp6-4mqp-g4p8
Restart Required: Yes
Instructions:
1. Backup current WeGIA installation and data. 2. Download WeGIA version 3.2.16 from official repository. 3. Replace vulnerable files with patched version. 4. Restart web server and WeGIA services.
🔧 Temporary Workarounds
Rate Limiting via Web Server
allImplement request rate limiting at web server level to prevent aggressive spidering
# For Apache: mod_evasive or mod_security rules
# For Nginx: limit_req_zone configuration
WAF Rules
allDeploy Web Application Firewall rules to detect and block spidering patterns
# Example ModSecurity rule: SecRule REQUEST_URI "@rx (.*?)\1{5,}" "id:1001,phase:2,deny"
🧯 If You Can't Patch
- Implement network-level rate limiting using firewalls or load balancers
- Deploy reverse proxy with request throttling and bot detection
🔍 How to Verify
Check if Vulnerable:
Check WeGIA version in admin panel or via version file. If version < 3.2.16, system is vulnerable.Check Version:
grep -r 'version' /path/to/wegia/installation/ | grep -i wegVerify Fix Applied:
Confirm version is 3.2.16 or higher and test with controlled spidering to ensure service remains responsive.📡 Detection & Monitoring
Log Indicators:
- High volume of sequential URL requests from single IP
- Repeated patterns in access logs (e.g., /page?param=1, /page?param=2)
Network Indicators:
- Unusually high request rate from single source
- Pattern of incremental parameter requests
SIEM Query:
source="web_logs" | stats count by src_ip, url | where count > 1000 | sort -count