CVE-2023-38846
📋 TL;DR
CVE-2023-38846 is an information disclosure vulnerability in Marbre Lapin Line v.13.6.1 that allows remote attackers to access sensitive information through crafted GET requests. This affects users running the vulnerable version of the software, potentially exposing confidential data to unauthorized parties.
💻 Affected Systems
- Marbre Lapin Line
📦 What is this software?
Line by Linecorp
⚠️ Risk & Real-World Impact
Worst Case
Complete exposure of sensitive system information, configuration details, or user data leading to further attacks or data breaches.
Likely Case
Partial information disclosure revealing system details that could facilitate targeted attacks.
If Mitigated
Limited or no data exposure with proper access controls and network segmentation in place.
🎯 Exploit Status
Crafted GET requests are typically easy to execute, making this vulnerability straightforward to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch instructions available. Monitor vendor channels for updates.
🔧 Temporary Workarounds
Restrict Network Access
allLimit access to the vulnerable service to trusted networks only.
Use firewall rules to restrict inbound connections to specific IP ranges.
Implement Web Application Firewall
allDeploy a WAF to filter malicious GET requests.
Configure WAF rules to block suspicious GET request patterns.
🧯 If You Can't Patch
- Isolate the vulnerable system in a segmented network to limit exposure.
- Monitor logs for unusual GET request patterns and implement alerting.
🔍 How to Verify
Check if Vulnerable:
Check if running Marbre Lapin Line v.13.6.1. Test with crafted GET requests to see if sensitive information is returned.Check Version:
Check application documentation for version query command specific to Marbre Lapin Line.Verify Fix Applied:
Verify by updating to a patched version (if available) and retesting with crafted GET requests.📡 Detection & Monitoring
Log Indicators:
- Unusual GET requests with crafted parameters
- Increased volume of GET requests to sensitive endpoints
Network Indicators:
- Traffic patterns showing repeated GET requests with unusual parameters
SIEM Query:
source="web_server" AND method="GET" AND (uri CONTAINS "sensitive" OR parameters MATCHES "crafted_pattern")