CVE-2014-8945
📋 TL;DR
This CVE describes a command injection vulnerability in Lexiglot's admin.php page that allows attackers to execute arbitrary commands on the server. The vulnerability affects all Lexiglot installations through version 2014-11-20 and can be exploited via username and password fields without authentication.
💻 Affected Systems
- Lexiglot
📦 What is this software?
Lexiglot by Piwigo
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attackers to execute arbitrary commands with web server privileges, potentially leading to data theft, system takeover, or lateral movement.
Likely Case
Remote code execution leading to web server compromise, data exfiltration, or installation of backdoors.
If Mitigated
Limited impact if proper input validation and command sanitization are implemented, restricting attackers to limited command execution.
🎯 Exploit Status
Exploitation is straightforward via HTTP requests to the vulnerable endpoint
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 2014-11-20
Vendor Advisory: https://www.justanotherhacker.com/2018/05/jahx181_-_piwigo_lexiglot_multiple_vulnerabilities.html
Restart Required: No
Instructions:
1. Upgrade Lexiglot to version after 2014-11-20
2. Replace vulnerable admin.php file with patched version
3. Verify no custom modifications are overwritten
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to sanitize username and password fields
Modify admin.php to escape shell metacharacters in user inputs
Access Restriction
allRestrict access to admin.php endpoint
Add IP whitelisting or authentication requirements to admin.php
🧯 If You Can't Patch
- Implement WAF rules to block command injection patterns in username/password fields
- Isolate the Lexiglot instance in a restricted network segment
🔍 How to Verify
Check if Vulnerable:
Check if Lexiglot version is 2014-11-20 or earlier, or test admin.php?page=projects endpoint for command injectionCheck Version:
Check Lexiglot configuration files or database for version informationVerify Fix Applied:
Verify Lexiglot version is after 2014-11-20 and test that command injection attempts are blocked📡 Detection & Monitoring
Log Indicators:
- Unusual commands in web server logs
- Multiple failed login attempts with shell metacharacters
- Suspicious POST requests to admin.php
Network Indicators:
- HTTP requests containing shell commands in parameters
- Outbound connections from web server to unexpected destinations
SIEM Query:
source="web_logs" AND uri="*admin.php*" AND (param="*|*" OR param="*;*" OR param="*`*" OR param="*$(*")