CVE-2024-7602
📋 TL;DR
This vulnerability allows authenticated remote attackers to perform directory traversal attacks on Logsign Unified SecOps Platform installations. By exploiting improper path validation in the HTTP API service, attackers can access sensitive files outside intended directories, potentially exposing configuration files, logs, or other sensitive data. Only authenticated users can exploit this vulnerability.
💻 Affected Systems
- Logsign Unified SecOps Platform
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers with valid credentials could access sensitive system files, configuration data, or logs containing credentials, potentially leading to full system compromise or lateral movement within the network.
Likely Case
Authenticated attackers accessing sensitive configuration files, logs, or other data that could facilitate further attacks or expose sensitive information.
If Mitigated
With proper network segmentation and authentication controls, impact is limited to authorized users who already have some level of access to the system.
🎯 Exploit Status
Exploitation requires valid credentials but the directory traversal technique is well-understood and simple to implement.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.4.23
Vendor Advisory: https://support.logsign.net/hc/en-us/articles/20617133769362-06-08-2024-Version-6-4-23-Release-Notes
Restart Required: Yes
Instructions:
1. Backup current configuration and data. 2. Download version 6.4.23 from Logsign support portal. 3. Follow Logsign upgrade documentation for your deployment type. 4. Restart services after upgrade completion.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict access to the HTTP API service (port 443) to only trusted networks and users.
# Configure firewall rules to restrict access
# Example: iptables -A INPUT -p tcp --dport 443 -s trusted_network -j ACCEPT
# iptables -A INPUT -p tcp --dport 443 -j DROP
Authentication Hardening
allImplement strong authentication policies including MFA, complex passwords, and account lockouts.
# Configure strong authentication in Logsign settings
# Enable MFA if available
# Review and remove unnecessary user accounts
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the Logsign platform from sensitive systems
- Enhance monitoring and alerting for unusual file access patterns in the HTTP API logs
🔍 How to Verify
Check if Vulnerable:
Check the Logsign platform version via the web interface or by examining the installed package version. Versions prior to 6.4.23 are vulnerable.Check Version:
# Check version via web interface: Admin → System Information
# Or check package: rpm -qa | grep logsign # For RPM-based systemsVerify Fix Applied:
Verify the platform version shows 6.4.23 or later in the administration interface or via package management commands.📡 Detection & Monitoring
Log Indicators:
- Unusual file path patterns in HTTP API access logs
- Multiple failed authentication attempts followed by successful directory traversal attempts
- Access to files outside normal application directories
Network Indicators:
- HTTP requests with directory traversal sequences (../, ..\) to the API endpoint
- Unusual file download patterns from the API service
SIEM Query:
source="logsign_http_api" AND (uri="*../*" OR uri="*..\\*")