CVE-2024-31998 Overview
Combodo iTop is a web-based IT Service Management (ITSM) tool used by organizations to manage configuration items, incidents, and changes. CVE-2024-31998 is a Cross-Site Request Forgery (CSRF) vulnerability [CWE-352] affecting the CSV import simulation feature. An attacker can trick an authenticated iTop user into submitting forged requests against the CSV import endpoint. Successful exploitation can compromise confidentiality, integrity, and availability of the iTop instance. The flaw is fixed in iTop versions 3.1.2 and 3.2.0, and Combodo states no workarounds exist beyond upgrading.
Critical Impact
An authenticated user visiting an attacker-controlled page can be coerced into executing CSV import simulation actions, potentially affecting iTop data integrity and confidentiality.
Affected Products
- Combodo iTop versions prior to 3.1.2
- Combodo iTop 3.2.x versions prior to 3.2.0
- Deployments exposing the CSV import simulation endpoint to authenticated users
Discovery Timeline
- 2024-11-05 - CVE-2024-31998 published to the National Vulnerability Database (NVD)
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-31998
Vulnerability Analysis
The vulnerability is a Cross-Site Request Forgery (CSRF) flaw in the CSV import simulation workflow of Combodo iTop. The CSV import simulation endpoint accepts state-changing requests without verifying a valid anti-CSRF token tied to the user session. An attacker who lures an authenticated iTop user to a malicious page can cause the browser to submit a forged request to the iTop instance. The request executes in the victim's authenticated session and inherits the victim's privileges.
Because iTop manages configuration management database (CMDB) data, abuse of CSV import functions can affect a wide range of records. The advisory rates impact to confidentiality, integrity, and availability as high, reflecting the broad reach of CSV import operations within the application.
Root Cause
The root cause is missing or insufficient CSRF protection on the CSV import simulation handler. The application relies on session cookies for authentication without enforcing an unpredictable, per-request token to confirm user intent. This is the canonical pattern described by CWE-352: Cross-Site Request Forgery.
Attack Vector
Exploitation requires user interaction. An attacker hosts a malicious page containing a crafted HTML form or script targeting the iTop CSV import simulation URL. When an authenticated iTop user loads that page, the browser submits the forged request along with valid session cookies. The iTop server processes the request as legitimate. Network-based delivery (phishing email, malicious link, or compromised site) makes the attack feasible at scale against any user with an active iTop session.
No public proof-of-concept exploit code has been published for this issue. Refer to the Combodo iTop GitHub Security Advisory GHSA-8cwx-q4xh-7c7r for vendor technical details.
Detection Methods for CVE-2024-31998
Indicators of Compromise
- Unexpected CSV import simulation requests in iTop web server access logs originating from cross-origin Referer or Origin headers
- POST requests to iTop CSV import endpoints lacking a valid anti-CSRF token parameter
- iTop audit log entries showing CSV import activity from accounts that do not normally perform imports
Detection Strategies
- Inspect HTTP access logs for requests to the CSV import simulation endpoint where the Referer header does not match the iTop application domain
- Correlate authenticated iTop sessions with browser-driven POST requests originating from external sites
- Enable verbose iTop application auditing on CSV import operations and review for anomalous bulk changes to CMDB objects
Monitoring Recommendations
- Forward iTop web server and application logs to a centralized logging or SIEM platform for retention and query
- Alert on CSV import simulation requests outside business hours or from user accounts not assigned the data import role
- Track first-time CSV import activity per user account as a behavioral baseline deviation
How to Mitigate CVE-2024-31998
Immediate Actions Required
- Upgrade Combodo iTop to version 3.1.2 or 3.2.0 or later as published by Combodo
- Restrict access to iTop administrative and import functionality to trusted networks via reverse proxy or VPN
- Require iTop users to log out of administrative sessions when not actively using the application to shrink the CSRF exposure window
Patch Information
Combodo released fixed builds in iTop 3.1.2 and 3.2.0. Apply the upgrade per the Combodo iTop GitHub Security Advisory GHSA-8cwx-q4xh-7c7r. The vendor states there are no supported workarounds, so patching is the required remediation.
Workarounds
- No vendor-supported workarounds exist; upgrade to a fixed release is required
- As a compensating control, place iTop behind a web application firewall (WAF) that enforces Origin and Referer header validation on state-changing POST requests
- Limit CSV import permissions to a minimal set of accounts to reduce the population of users that can be targeted
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
