CVE-2024-24820
📋 TL;DR
CVE-2024-24820 is a Cross-Site Request Forgery (CSRF) vulnerability in Icinga Director that allows attackers to perform unauthorized configuration changes in monitoring environments. All Icinga Director users with version 1.x of the map module are affected. Attackers can manipulate monitoring configurations without victim awareness.
💻 Affected Systems
- Icinga Director
- Icinga Web with map module
📦 What is this software?
Icinga by Icinga
Icinga by Icinga
Icinga by Icinga
Icinga by Icinga
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of monitoring infrastructure, enabling attackers to disable monitoring, create false alerts, or redirect monitoring data to malicious endpoints.
Likely Case
Unauthorized configuration changes leading to monitoring blind spots, false alerts, or service disruption.
If Mitigated
Limited impact with proper CSRF protections, authentication controls, and network segmentation in place.
🎯 Exploit Status
CSRF attacks require victim to be authenticated and visit malicious page. Attack complexity is low as standard CSRF techniques apply.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Icinga Director map module v2.0, or minor updates to 1.8, 1.9, 1.10, 1.11 branches. Icinga Web most recent 2.9, 2.10, or 2.11 releases.
Vendor Advisory: https://github.com/Icinga/icingaweb2-module-director/security/advisories/GHSA-3mwp-5p5v-j6q3
Restart Required: Yes
Instructions:
1. Upgrade Icinga Director map module to v2.0 immediately. 2. Upgrade Icinga Web to most recent 2.9, 2.10, or 2.11 release. 3. Restart Icinga services after upgrade.
🔧 Temporary Workarounds
Disable Icinga Director Module
linuxTemporarily disable the director module to prevent exploitation until patching is possible.
# Disable module in Icinga Web configuration
# Remove or rename module directory: /usr/share/icingaweb2/modules/director
🧯 If You Can't Patch
- Implement CSRF tokens or same-site cookies in web application firewall
- Restrict access to Icinga Director interface to trusted networks only
🔍 How to Verify
Check if Vulnerable:
Check Icinga Director map module version: grep -r 'version' /usr/share/icingaweb2/modules/director/meta.iniCheck Version:
icingacli module list director | grep VersionVerify Fix Applied:
Verify map module version is 2.0 or higher, and Icinga Web is on patched version: icingacli module list director📡 Detection & Monitoring
Log Indicators:
- Unexpected configuration changes in Icinga logs
- Multiple failed authentication attempts followed by configuration modifications
Network Indicators:
- Unusual outbound connections from Icinga server
- Requests to Icinga Director without proper referrer headers
SIEM Query:
source="icinga.log" AND ("configuration change" OR "director update") AND user!="authorized_user"🔗 References
- https://blog.mozilla.org/en/mozilla/firefox-rolls-out-total-cookie-protection-by-default-to-all-users-worldwide/
- https://github.com/Icinga/icingaweb2-module-director/security/advisories/GHSA-3mwp-5p5v-j6q3
- https://github.com/Icinga/icingaweb2/issues?q=is%3Aissue++is%3Aclosed+4979+4960+4947
- https://github.com/nbuchwitz/icingaweb2-module-map/pull/86
- https://support.apple.com/en-is/guide/safari/sfri11471/16.0
- https://www.chromium.org/updates/same-site/
- https://blog.mozilla.org/en/mozilla/firefox-rolls-out-total-cookie-protection-by-default-to-all-users-worldwide/
- https://github.com/Icinga/icingaweb2-module-director/security/advisories/GHSA-3mwp-5p5v-j6q3
- https://github.com/Icinga/icingaweb2/issues?q=is%3Aissue++is%3Aclosed+4979+4960+4947
- https://github.com/nbuchwitz/icingaweb2-module-map/pull/86
- https://support.apple.com/en-is/guide/safari/sfri11471/16.0
- https://www.chromium.org/updates/same-site/
