CVE-2024-36076
📋 TL;DR
This Cross-Site WebSocket Hijacking vulnerability in SysReptor allows attackers to hijack WebSocket connections when a logged-in user visits a malicious same-site subdomain. Attackers can escalate privileges and access sensitive information. Users of SysReptor versions 2024.28 through 2024.30 are affected.
💻 Affected Systems
- SysReptor
📦 What is this software?
Sysreptor by Syslifters
⚠️ Risk & Real-World Impact
Worst Case
Full privilege escalation leading to complete system compromise, data exfiltration, and lateral movement within the environment.
Likely Case
Unauthorized access to sensitive information and limited privilege escalation within the SysReptor application.
If Mitigated
Minimal impact with proper network segmentation and access controls limiting attacker movement.
🎯 Exploit Status
Exploitation requires user interaction (visiting malicious site) but is straightforward once the malicious site is crafted.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2024.40
Vendor Advisory: https://github.com/Syslifters/sysreptor/security/advisories/GHSA-2vfc-3h43-vghh
Restart Required: Yes
Instructions:
1. Backup current SysReptor installation. 2. Download version 2024.40 from official releases. 3. Replace existing installation with patched version. 4. Restart SysReptor service.
🔧 Temporary Workarounds
SameSite Cookie Enforcement
allConfigure cookies with SameSite=Strict attribute to prevent cross-site requests
Configure web server to set SameSite=Strict for all cookies
Origin Validation
allImplement WebSocket origin validation to reject connections from unauthorized domains
Implement server-side WebSocket origin checking in application code
🧯 If You Can't Patch
- Isolate SysReptor to separate domain without subdomains
- Implement strict Content Security Policy (CSP) with frame-ancestors and connect-src directives
🔍 How to Verify
Check if Vulnerable:
Check SysReptor version. If between 2024.28 and 2024.30 inclusive, system is vulnerable.Check Version:
Check SysReptor web interface or configuration files for version informationVerify Fix Applied:
Verify SysReptor version is 2024.40 or later. Test WebSocket connections with origin validation.📡 Detection & Monitoring
Log Indicators:
- Unexpected WebSocket connection origins
- Failed authentication attempts via WebSocket
- Unusual privilege escalation events
Network Indicators:
- WebSocket connections from unexpected subdomains
- Cross-origin WebSocket requests
SIEM Query:
websocket AND (origin NOT IN allowed_domains) OR (authentication_failure AND websocket)