CVE-2024-8068
📋 TL;DR
This vulnerability allows authenticated Windows Active Directory users in the same domain as a Citrix Session Recording server to escalate privileges to NetworkService account access. Attackers can gain elevated permissions on the session recording server, potentially compromising recorded session data and server integrity. Organizations using Citrix Session Recording in Windows Active Directory environments are affected.
💻 Affected Systems
- Citrix Session Recording
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the session recording server, allowing attackers to access sensitive recorded session data, manipulate recordings, install malware, and pivot to other systems in the domain.
Likely Case
Unauthorized access to recorded session data, potential credential harvesting from sessions, and limited lateral movement within the network.
If Mitigated
Minimal impact with proper network segmentation, least privilege access controls, and monitoring in place to detect privilege escalation attempts.
🎯 Exploit Status
Exploitation requires authenticated domain user access but is considered low complexity once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 2405 or later
Vendor Advisory: https://support.citrix.com/s/article/CTX691941-citrix-session-recording-security-bulletin-for-cve20248068-and-cve20248069?language=en_US
Restart Required: Yes
Instructions:
1. Download Citrix Session Recording version 2405 or later from Citrix downloads. 2. Backup current configuration. 3. Install the update following Citrix documentation. 4. Restart the Session Recording server.
🔧 Temporary Workarounds
Restrict Active Directory Access
windowsLimit which domain users can access the Session Recording server through group policy and firewall rules.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Session Recording servers from general user networks
- Enforce least privilege access controls and monitor for unusual privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check Citrix Session Recording version in Control Panel > Programs and Features. Versions prior to 2405 are vulnerable.Check Version:
Get-WmiObject -Class Win32_Product | Where-Object {$_.Name -like '*Citrix Session Recording*'} | Select-Object Name, VersionVerify Fix Applied:
Verify installation of version 2405 or later and confirm successful restart of Session Recording services.📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation events in Windows Security logs
- Unexpected NetworkService account activity
- Failed authentication attempts followed by successful privilege changes
Network Indicators:
- Unusual connections to Session Recording server from non-admin workstations
- Anomalous traffic patterns to session recording data stores
SIEM Query:
source="Windows Security" EventCode=4672 OR EventCode=4688 | where user_account contains "NETWORK SERVICE" AND process_name contains "Session Recording"