CVE-2024-41726
📋 TL;DR
A path traversal vulnerability in SKYSEA Client View allows authenticated users on Windows systems to execute arbitrary executable files by manipulating file paths. This affects versions 3.013.00 through 19.210.04e of the software, potentially enabling local privilege escalation or malware execution.
💻 Affected Systems
- SKYSEA Client View
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An authenticated attacker could execute malicious code with the privileges of the SKYSEA Client View process, potentially leading to full system compromise, data theft, or ransomware deployment.
Likely Case
Malicious insiders or compromised accounts could execute unauthorized programs, install backdoors, or escalate privileges on affected systems.
If Mitigated
With proper access controls and monitoring, exploitation would be limited to authorized users and detected through abnormal process execution.
🎯 Exploit Status
Exploitation requires authenticated access to the Windows system. Path traversal vulnerabilities are typically straightforward to exploit once the attack vector is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 19.210.04e
Vendor Advisory: https://www.skyseaclientview.net/news/240729_02/
Restart Required: Yes
Instructions:
1. Download the latest version from the official SKYSEA Client View website. 2. Uninstall the current vulnerable version. 3. Install the updated version. 4. Restart the system to ensure changes take effect.
🔧 Temporary Workarounds
Restrict User Access
windowsLimit which users can log into systems running SKYSEA Client View to reduce the attack surface.
Application Whitelisting
windowsImplement application control policies to prevent execution of unauthorized executables.
🧯 If You Can't Patch
- Implement strict least-privilege access controls to limit which users can access affected systems.
- Deploy endpoint detection and response (EDR) solutions to monitor for suspicious process execution and file system activities.
🔍 How to Verify
Check if Vulnerable:
Check the SKYSEA Client View version in the application's about dialog or through Windows Programs and Features. If version is between 3.013.00 and 19.210.04e inclusive, the system is vulnerable.Check Version:
wmic product where name="SKYSEA Client View" get versionVerify Fix Applied:
Verify the installed version is newer than 19.210.04e and check that path traversal attempts are properly blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual process execution from SKYSEA Client View directories
- Failed path traversal attempts in application logs
- Execution of unexpected executables by the SKYSEA process
Network Indicators:
- Unusual outbound connections from SKYSEA Client View processes
SIEM Query:
Process Creation where (Image contains "skysea" OR ParentImage contains "skysea") AND CommandLine contains "..\\" OR CommandLine contains "../"