CVE-2024-0833
📋 TL;DR
A privilege elevation vulnerability in Telerik Test Studio installer allows lower-privileged users to manipulate installation packages and gain elevated system privileges. This affects environments with existing Telerik Test Studio installations where users have local access. The vulnerability enables attackers to escalate from limited user accounts to administrative control.
💻 Affected Systems
- Telerik Test Studio
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise where an attacker gains full administrative control over the operating system, enabling installation of malware, data theft, and persistence mechanisms.
Likely Case
Local privilege escalation allowing attackers to bypass security controls, install unauthorized software, and access sensitive data or systems.
If Mitigated
Limited impact with proper access controls, where only authorized administrators can execute installation processes.
🎯 Exploit Status
Exploitation requires local access and knowledge of installer manipulation techniques. No public exploit code has been identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v2023.3.1330
Vendor Advisory: https://docs.telerik.com/teststudio/knowledge-base/product-notices-kb/legacy-installer-vulnerability
Restart Required: Yes
Instructions:
1. Download Telerik Test Studio v2023.3.1330 or later from official Telerik sources. 2. Uninstall previous versions. 3. Install the updated version with administrative privileges. 4. Restart the system to ensure all components are properly updated.
🔧 Temporary Workarounds
Restrict installer permissions
windowsLimit access to Telerik Test Studio installation directories and executables to prevent manipulation by non-administrative users.
icacls "C:\Program Files\Telerik\Test Studio" /inheritance:r /grant:r "Administrators:(OI)(CI)F" /grant:r "SYSTEM:(OI)(CI)F" /remove:g "Users"
icacls "C:\Program Files (x86)\Telerik\Test Studio" /inheritance:r /grant:r "Administrators:(OI)(CI)F" /grant:r "SYSTEM:(OI)(CI)F" /remove:g "Users"
🧯 If You Can't Patch
- Implement strict access controls to limit which users can access systems with Telerik Test Studio installed.
- Monitor for unauthorized privilege escalation attempts using security auditing tools and endpoint detection.
🔍 How to Verify
Check if Vulnerable:
Check Telerik Test Studio version by opening the application and navigating to Help > About, or check the installation directory properties.Check Version:
wmic product where "name like '%Telerik Test Studio%'" get versionVerify Fix Applied:
Verify the installed version is v2023.3.1330 or later through the application's About dialog or installation directory.📡 Detection & Monitoring
Log Indicators:
- Windows Event Log entries showing unauthorized access to Telerik installation directories
- Security logs showing privilege escalation attempts or unexpected administrative actions from non-admin accounts
Network Indicators:
- No specific network indicators as this is a local privilege escalation
SIEM Query:
EventID=4688 AND ProcessName LIKE '%TestStudio%' AND SubjectUserName NOT IN (admin_users_list)