LG Simple Editor deleteFolder Directory Traversal Arbitrary File Deletion Vulnerability

The directory traversal vulnerability in LG Simple Editor poses a significant risk. An attacker can exploit this flaw to delete critical system files, potentially disrupting operations or causing data loss. Because authentication is not required, the attack surface is broad, and exploitation is relatively straightforward. The ability to delete files with SYSTEM privileges grants the attacker a high degree of control over the affected system, enabling further malicious actions like installing malware or gaining persistent access. This vulnerability shares similarities with other directory traversal exploits where attackers leverage insufficient input validation to navigate the file system.

Organizations utilizing LG Simple Editor, particularly those with older versions (3.21.0 and prior), are at risk. Environments with limited network segmentation or those lacking robust file permission controls are especially vulnerable. Shared hosting environments where multiple users share the same server instance could also be affected, as a compromised user could potentially exploit this vulnerability to impact other users.

• windows / supply-chain:

Get-ScheduledTask | Where-Object {$_.TaskName -like '*LG Simple Editor*'} | Stop-ScheduledTask

• windows / supply-chain:

Get-Process | Where-Object {$_.ProcessName -like '*LG Simple Editor*'} | Stop-Process -Force

• windows / supply-chain: Check Autoruns for entries related to LG Simple Editor that might indicate persistence mechanisms. • windows / supply-chain: Monitor Windows Defender for alerts related to suspicious file deletion activity in the LG Simple Editor installation directory.

1. 2024-05-03Disclosure

   disclosure

1. Reserviert2023-08-14
2. Veröffentlicht2024-05-03
3. Geändert2024-09-18
4. EPSS aktualisiert2026-04-02

The primary mitigation for CVE-2023-40494 is to upgrade to a patched version of LG Simple Editor as soon as it becomes available. Until a patch is released, consider implementing temporary workarounds. Restrict network access to the LG Simple Editor installation to only authorized users. Implement strict file system permissions to limit the impact of potential file deletions. Consider using a Web Application Firewall (WAF) with rules to block requests containing suspicious path traversal patterns. Monitor system logs for unusual file deletion activity.