CVE-2024-25699
📋 TL;DR
An improper authentication vulnerability in Esri Portal for ArcGIS and ArcGIS Enterprise allows authenticated low-privileged attackers to bypass authorization boundaries and gain unauthorized access. This affects users of Portal for ArcGIS 11.2 and below on Windows/Linux, and ArcGIS Enterprise 11.1 and below on Kubernetes. Successful exploitation could compromise confidentiality, integrity, and availability of the system.
💻 Affected Systems
- Portal for ArcGIS
- ArcGIS Enterprise
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote authenticated attacker gains administrative privileges, leading to complete system compromise, data theft, and service disruption.
Likely Case
Low-privileged user escalates privileges to access sensitive data or modify configurations beyond their authorized scope.
If Mitigated
Attack is prevented through proper network segmentation, least privilege access, and timely patching.
🎯 Exploit Status
Exploitation requires specific circumstances and authenticated access, making it difficult to exploit according to the description.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Portal for ArcGIS 11.2 Update 1 or later, ArcGIS Enterprise 11.1 Update 1 or later
Vendor Advisory: https://www.esri.com/arcgis-blog/products/arcgis-enterprise/administration/portal-for-arcgis-security-2024-update-1/
Restart Required: Yes
Instructions:
1. Download the security update from Esri's official portal. 2. Apply the patch following Esri's deployment documentation. 3. Restart the affected services. 4. Verify the update was successful.
🔧 Temporary Workarounds
Network Segmentation
allRestrict access to the Home application to only trusted networks and users.
Least Privilege Enforcement
allReview and minimize user privileges to reduce potential impact if exploited.
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure to authenticated users only.
- Monitor authentication and authorization logs for unusual privilege escalation attempts.
🔍 How to Verify
Check if Vulnerable:
Check the installed version of Portal for ArcGIS or ArcGIS Enterprise against affected versions.Check Version:
Check the version in the ArcGIS Administrator or via the web interface under Settings > About.Verify Fix Applied:
Verify the version is updated to Portal for ArcGIS 11.2 Update 1 or later, or ArcGIS Enterprise 11.1 Update 1 or later.📡 Detection & Monitoring
Log Indicators:
- Unusual authentication events
- Privilege escalation attempts
- Access to unauthorized resources
Network Indicators:
- Unexpected requests to authentication endpoints
- Traffic from low-privileged users accessing high-privilege resources
SIEM Query:
source="arcgis" AND (event_type="authentication" OR event_type="authorization") AND result="failure"