CVE-2022-26042
📋 TL;DR
CVE-2022-26042 is an OS command injection vulnerability in InHand Networks InRouter302's daretools binary that allows remote attackers to execute arbitrary commands on affected devices. Organizations using InRouter302 V3.5.4 are affected. Attackers can exploit this by sending specially crafted network requests to vulnerable devices.
💻 Affected Systems
- InHand Networks InRouter302
📦 What is this software?
Ir302 Firmware by Inhandnetworks
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise leading to network infiltration, data exfiltration, ransomware deployment, or use as a pivot point for attacking internal networks.
Likely Case
Unauthorized command execution allowing attackers to modify device configuration, install backdoors, or disrupt network connectivity.
If Mitigated
Limited impact with proper network segmentation and access controls preventing exploitation attempts.
🎯 Exploit Status
The vulnerability requires sending a sequence of requests but does not require authentication, making exploitation relatively straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V3.5.45 or later
Vendor Advisory: https://www.inhandnetworks.com/upload/attachment/202205/10/InHand-PSA-2022-01.pdf
Restart Required: Yes
Instructions:
1. Download firmware version V3.5.45 or later from InHand Networks support portal. 2. Log into router admin interface. 3. Navigate to System > Firmware Upgrade. 4. Upload and install the new firmware. 5. Reboot the device after installation completes.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to InRouter302 management interfaces to trusted IP addresses only
Configure firewall rules to allow only specific source IPs to access router management ports
Disable Unnecessary Services
allDisable any unnecessary network services on the router to reduce attack surface
Review and disable any non-essential services in router configuration
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected routers from critical network segments
- Deploy network intrusion detection systems to monitor for exploitation attempts and block malicious traffic
🔍 How to Verify
Check if Vulnerable:
Check router firmware version via web interface or SSH: System > About or 'cat /etc/version'Check Version:
cat /etc/versionVerify Fix Applied:
Verify firmware version is V3.5.45 or later and test that daretools functionality no longer accepts malicious input📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed authentication attempts followed by successful access
- Suspicious network requests to router management interfaces
Network Indicators:
- Unusual outbound connections from router to external IPs
- Multiple sequential requests to router management ports from single source
- Traffic patterns matching known exploit sequences
SIEM Query:
source="router_logs" AND ("daretools" OR "command injection" OR "unauthorized access")