CVE-2026-2944
๐ TL;DR
This CVE describes an OS command injection vulnerability in Tosei Online Store Management System 1.01. Attackers can execute arbitrary operating system commands by manipulating the DevId parameter in HTTP POST requests to /cgi-bin/monitor.php. All users running the vulnerable version of this e-commerce management software are affected.
๐ป Affected Systems
- Tosei Online Store Management System (ใใใๅบ่็ฎก็ใทในใใ )
๐ฆ What is this software?
Online Store Management System by Tosei Corporation
โ ๏ธ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, install malware, steal data, pivot to other systems, or establish persistent backdoors.
Likely Case
Attackers gain shell access to the web server, potentially compromising customer data, payment information, and store operations.
If Mitigated
Attack attempts are blocked at the network perimeter or web application firewall, preventing exploitation.
๐ฏ Exploit Status
The exploit has been publicly released and requires minimal technical skill to execute. No authentication is required for exploitation.
๐ ๏ธ Fix & Mitigation
โ Official Fix
Patch Version: Unknown
Vendor Advisory: None available - vendor did not respond to disclosure
Restart Required: No
Instructions:
No official patch is available. Consider migrating to alternative software or implementing workarounds.
๐ง Temporary Workarounds
Web Application Firewall (WAF) Rules
allImplement WAF rules to block suspicious patterns in POST requests to monitor.php, particularly focusing on the DevId parameter.
Access Restriction
linuxRestrict access to /cgi-bin/monitor.php using network controls or web server configuration.
# Apache example: <Location "/cgi-bin/monitor.php">
# Order deny,allow
# Deny from all
# Allow from trusted_ips
# </Location>
# Nginx example: location = /cgi-bin/monitor.php { deny all; }
๐งฏ If You Can't Patch
- Isolate the vulnerable system in a separate network segment with strict egress filtering
- Implement comprehensive monitoring and alerting for suspicious command execution attempts
๐ How to Verify
Check if Vulnerable:
Check if /cgi-bin/monitor.php exists and accepts POST requests with DevId parameter. Test with controlled payloads in a safe environment.Check Version:
Check software version in admin interface or configuration files. Look for version 1.01 in system files or documentation.Verify Fix Applied:
Verify that command injection attempts no longer succeed and that monitor.php endpoint is properly secured or inaccessible.๐ก Detection & Monitoring
Log Indicators:
- Unusual POST requests to /cgi-bin/monitor.php with shell metacharacters in DevId parameter
- Unexpected command execution in system logs
- Multiple failed exploitation attempts
Network Indicators:
- POST requests to monitor.php containing shell commands or special characters
- Outbound connections from web server to unexpected destinations
SIEM Query:
source="web_logs" AND uri="/cgi-bin/monitor.php" AND (method="POST" OR method="post") AND (param="DevId" OR param="devid") AND (value MATCHES "[;&|`$()]" OR value MATCHES "\\.\\./" OR value CONTAINS "cat" OR value CONTAINS "ls" OR value CONTAINS "whoami")