CVE-2026-23678
📋 TL;DR
This CVE describes a command injection vulnerability in Binardat 10G08-0800GSM network switch firmware that allows authenticated attackers to execute arbitrary CLI commands via the traceroute diagnostic function. Attackers can inject the %1a character into the hostname parameter to achieve remote code execution. Organizations using affected Binardat switch models with vulnerable firmware versions are at risk.
💻 Affected Systems
- Binardat 10G08-0800GSM network switch
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of network switch allowing attacker to reconfigure network, intercept traffic, pivot to other systems, or disable network connectivity entirely.
Likely Case
Attacker gains persistent access to network infrastructure, modifies switch configuration, creates backdoors, or disrupts network operations.
If Mitigated
Limited impact due to network segmentation, strong authentication controls, and restricted web interface access preventing exploitation.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once authentication is obtained. The specific injection technique using %1a character is documented.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: Yes
Instructions:
1. Contact Binardat support for firmware updates. 2. Download latest firmware if available. 3. Backup current configuration. 4. Upload and install new firmware via web interface or CLI. 5. Restart switch. 6. Restore configuration if needed.
🔧 Temporary Workarounds
Disable web management interface
allRemove web interface access to prevent exploitation of the vulnerable traceroute function
no ip http server
no ip http secure-server
Restrict web interface access
allLimit web interface access to specific management IP addresses only
ip http access-class MANAGEMENT-ACL
ip http secure-server access-class MANAGEMENT-ACL
🧯 If You Can't Patch
- Implement strict network segmentation to isolate management interfaces from user networks
- Enforce strong authentication policies and multi-factor authentication for switch management
🔍 How to Verify
Check if Vulnerable:
Check firmware version via web interface or CLI using 'show version' command and compare against vulnerable versionsCheck Version:
show versionVerify Fix Applied:
Verify firmware version is newer than V300SP10260209 and test traceroute function with %1a injection attempt📡 Detection & Monitoring
Log Indicators:
- Unusual CLI command execution via web interface
- Multiple failed authentication attempts followed by traceroute requests
- Web logs showing %1a character in traceroute hostname parameter
Network Indicators:
- Unexpected CLI commands originating from web management interface
- Unusual outbound connections from switch management IP
SIEM Query:
source="switch_logs" AND ("traceroute" AND "%1a") OR ("CLI" AND "web_interface")