CVE-2025-11344 Overview
A Remote Code Execution vulnerability has been discovered in ILIAS, an open-source learning management system (LMS). The vulnerability affects the Certificate Import Handler component, allowing remote attackers to execute arbitrary code on vulnerable installations. This security flaw impacts ILIAS versions up to 8.23, 9.13, and 10.1, requiring immediate attention from organizations using this e-learning platform.
Critical Impact
Remote attackers can exploit the Certificate Import Handler to achieve code execution on affected ILIAS installations, potentially compromising sensitive educational data and system integrity.
Affected Products
- ILIAS version 8.23 and earlier
- ILIAS version 9.13 and earlier
- ILIAS version 10.1 and earlier
Discovery Timeline
- October 6, 2025 - CVE-2025-11344 published to NVD
- January 23, 2026 - Last updated in NVD database
Technical Details for CVE-2025-11344
Vulnerability Analysis
This vulnerability resides in the Certificate Import Handler functionality within ILIAS. The flaw is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component) and CWE-94 (Improper Control of Generation of Code), indicating that the vulnerability stems from inadequate input validation during the certificate import process.
The network-based attack vector allows remote exploitation, though user interaction is required for successful exploitation. When a user imports a maliciously crafted certificate, the application fails to properly sanitize or validate the input, enabling the injection of executable code that is subsequently processed by the server.
Root Cause
The root cause of this vulnerability lies in insufficient input validation and improper neutralization of special elements within the Certificate Import Handler. The ILIAS platform does not adequately sanitize certificate data during the import process, allowing attackers to inject malicious payloads that are interpreted and executed as code. This represents a classic injection vulnerability where user-controlled input reaches a code execution context without proper filtering.
Attack Vector
The attack is performed remotely over the network. An attacker can craft a specially prepared certificate file containing malicious code and trick an authenticated user into importing it through the ILIAS interface. Once imported, the malicious payload is processed by the Certificate Import Handler, resulting in code execution on the underlying server. The attack requires user interaction, meaning social engineering may be employed to convince a target user to import the malicious certificate.
The vulnerability mechanism involves the certificate import workflow where user-supplied data is processed without adequate sanitization. Attackers can embed code injection payloads within certificate fields that are later evaluated or executed by the application. For detailed technical analysis, refer to the SR Labs security research on ILIAS.
Detection Methods for CVE-2025-11344
Indicators of Compromise
- Suspicious certificate import activity from unexpected users or at unusual times
- Anomalous process execution spawned by the web server process handling ILIAS
- Unexpected outbound network connections originating from the ILIAS server
- Modified files within the ILIAS installation directory, particularly in certificate-related paths
Detection Strategies
- Monitor web application logs for certificate import operations, particularly those with unusual file sizes or character patterns
- Implement file integrity monitoring on ILIAS installation directories to detect unauthorized modifications
- Deploy web application firewall (WAF) rules to inspect certificate upload payloads for injection patterns
- Review authentication logs for accounts performing certificate imports and correlate with expected administrative activities
Monitoring Recommendations
- Enable verbose logging for the ILIAS Certificate Import Handler component
- Configure SIEM alerts for code execution indicators following certificate import events
- Implement network traffic analysis to detect command-and-control communications post-exploitation
- Establish baseline certificate import behavior and alert on deviations
How to Mitigate CVE-2025-11344
Immediate Actions Required
- Upgrade ILIAS immediately to patched versions: 8.24, 9.14, or 10.2 depending on your deployment branch
- Restrict access to the certificate import functionality to trusted administrators only
- Review recent certificate import logs for signs of exploitation attempts
- Implement network segmentation to limit potential lateral movement if compromise occurs
Patch Information
ILIAS has released security patches addressing this vulnerability. Organizations should upgrade to the following versions:
- ILIAS 8.x branch: Upgrade to version 8.24 or later
- ILIAS 9.x branch: Upgrade to version 9.14 or later
- ILIAS 10.x branch: Upgrade to version 10.2 or later
Detailed patch information and release notes are available through the official ILIAS documentation.
Workarounds
- Temporarily disable the certificate import functionality until patches can be applied
- Implement strict access controls to limit which users can perform certificate imports
- Deploy a web application firewall with custom rules to filter malicious certificate payloads
- Monitor and restrict outbound network traffic from the ILIAS server to detect and prevent post-exploitation activities
# Restrict certificate import to administrators only via .htaccess
# Add to ILIAS webroot or relevant directory
<Directory "/var/www/ilias/Services/Certificate">
Require group administrators
</Directory>
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
