CVE-2025-11344: Ilias Ilias RCE Vulnerability

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

bash

# 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>