CVE-2025-1787: Genetec Update Service Privilege Escalation

CVE-2025-1787 Overview

CVE-2025-1787 is an information disclosure vulnerability in the Genetec Update Service that allows a local administrator to leak sensitive information from the service configuration web page. An authenticated Windows user with admin privileges could exploit this vulnerability to gain elevated privileges within the Genetec Update Service. This vulnerability is notable because it can be chained with CVE-2025-1789 to achieve privilege escalation from a low-privilege context.

Critical Impact

Local administrators can leak sensitive configuration data and potentially escalate privileges within the Genetec Update Service, especially when combined with CVE-2025-1789 for a complete attack chain.

Affected Products

• Genetec Update Service (all versions prior to 2.10)

Discovery Timeline

• 2026-02-24 - CVE-2025-1787 published to NVD
• 2026-02-26 - Last updated in NVD database

Technical Details for CVE-2025-1787

Vulnerability Analysis

This vulnerability stems from improper origin validation (CWE-346) in the Genetec Update Service configuration web interface. The service fails to properly verify the origin of requests, allowing authenticated local administrators to access sensitive configuration information that should be restricted.

The attack requires local access to the Windows system where the Genetec Update Service is installed, along with administrative privileges. While this limits the attack surface, the vulnerability becomes more significant when considered as part of an attack chain with CVE-2025-1789, which could enable attackers with lower initial privileges to leverage this information disclosure for broader system compromise.

Root Cause

The root cause is CWE-346: Origin Validation Error. The Genetec Update Service configuration web page does not adequately validate the origin of incoming requests, allowing improperly authorized access to sensitive service configuration data. This type of vulnerability typically occurs when web-based interfaces trust requests without properly verifying that they originate from legitimate, authorized sources.

Attack Vector

The attack vector is local, requiring the attacker to have authenticated access to a Windows system running the vulnerable Genetec Update Service with administrative privileges. The attacker can access the configuration web page to extract sensitive information about the service configuration.

The exploitation flow involves:

1. An attacker gains local administrative access to a Windows system running Genetec Update Service
2. The attacker accesses the service configuration web interface
3. Due to improper origin validation, sensitive configuration data is exposed
4. The leaked information can be used to escalate privileges within the service
5. When combined with CVE-2025-1789, this can enable privilege escalation from lower-privileged accounts

Detection Methods for CVE-2025-1787

Indicators of Compromise

• Unusual access patterns to the Genetec Update Service configuration web interface
• Unexpected administrative logins to systems running Genetec Update Service
• Evidence of configuration data extraction or enumeration activities
• Correlation of this activity with CVE-2025-1789 exploitation attempts

Detection Strategies

• Monitor Windows Event Logs for suspicious administrative access to Genetec Update Service directories
• Implement application-level logging for the Genetec Update Service configuration interface
• Alert on unusual access patterns to service configuration endpoints
• Deploy endpoint detection solutions to identify privilege escalation attempts

Monitoring Recommendations

• Enable verbose logging on systems running Genetec Update Service
• Monitor for lateral movement following potential information disclosure
• Review access logs for the service configuration web interface regularly
• Correlate alerts with CVE-2025-1789 activity for attack chain detection

How to Mitigate CVE-2025-1787

Immediate Actions Required

• Update Genetec Update Service to version 2.10 or later immediately
• Restrict local administrative access to systems running the vulnerable service
• Audit current administrative access to affected systems
• Monitor for signs of exploitation or information disclosure

Patch Information

Genetec has released security updates in Genetec Update Service version 2.10 that address this vulnerability along with other security issues. Organizations should prioritize updating to version 2.10 or later. Detailed patch information is available in the Genetec Security Update Advisory.

Workarounds

• Limit local administrative access to systems running Genetec Update Service to only essential personnel
• Implement network segmentation to isolate systems running the vulnerable service
• Enable enhanced logging and monitoring on affected systems until patching is complete
• Consider temporarily disabling the configuration web interface if not required for operations

# Configuration example - Restrict access to Genetec Update Service
# Review and limit local administrators on affected systems
net localgroup administrators
# Remove unnecessary administrative accounts
net localgroup administrators <username> /delete