CVE-2024-32292 Overview
CVE-2024-32292 is a command injection vulnerability affecting Tenda W30E v1.0 routers running firmware version V1.0.1.25(633). The flaw resides in the formexeCommand function, which fails to sanitize the cmdinput parameter before passing it to a system shell. An attacker on an adjacent network can inject arbitrary operating system commands through this parameter. Successful exploitation grants command execution on the underlying router firmware with the privileges of the web management process. The weakness is tracked under CWE-77 (Improper Neutralization of Special Elements used in a Command).
Critical Impact
Adjacent network attackers can execute arbitrary OS commands on affected Tenda W30E routers, leading to full device compromise, traffic interception, and network pivoting.
Affected Products
- Tenda W30E router hardware
- Tenda W30E firmware version V1.0.1.25(633)
- Deployments exposing the web management interface on adjacent networks
Discovery Timeline
- 2024-04-17 - CVE-2024-32292 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-32292
Vulnerability Analysis
The vulnerability exists in the formexeCommand handler within the Tenda W30E web management interface. This function accepts a user-controlled cmdinput parameter and forwards its value to a shell execution routine without input validation or escaping. Because the router runs the web server with elevated privileges, injected commands execute in the context of the router's operating system.
An attacker positioned on an adjacent network segment, such as a wireless client or a device on a directly attached LAN, can issue a crafted HTTP request to the vulnerable endpoint. The cmdinput value can contain shell metacharacters like ;, |, or backticks to chain arbitrary commands. Exploitation does not require authentication or user interaction.
Because the router controls all network traffic transiting the device, a compromise enables persistent backdoors, DNS hijacking, credential theft, and lateral movement into internal networks.
Root Cause
The root cause is the absence of input neutralization in the formexeCommand function. Developer-facing diagnostic functionality that invokes shell commands was exposed through the web interface without a strict allowlist or argument sanitization. This maps directly to CWE-77.
Attack Vector
Exploitation requires network adjacency to the router. The attacker sends an HTTP POST request to the vulnerable form endpoint with a cmdinput payload containing shell metacharacters followed by attacker-chosen commands. The vulnerable function concatenates the parameter into a shell invocation, and the injected commands run alongside the intended binary.
See the GitHub IoT Vulnerability Research writeup for the technical proof-of-concept request format documented by the reporter.
Detection Methods for CVE-2024-32292
Indicators of Compromise
- HTTP requests to the router web interface targeting the formexeCommand endpoint containing the cmdinput parameter with shell metacharacters such as ;, |, &, or backticks.
- Unexpected outbound connections originating from the router management IP to attacker-controlled infrastructure.
- Modified router configuration, unexpected DNS server entries, or new firewall rules on affected Tenda W30E devices.
Detection Strategies
- Inspect network traffic destined for the router's management interface for POST requests containing suspicious cmdinput values.
- Deploy network-based intrusion detection signatures that flag command injection patterns in HTTP form parameters targeting Tenda-specific URIs.
- Correlate DHCP, ARP, and wireless association logs with anomalous management-interface access from adjacent hosts.
Monitoring Recommendations
- Monitor router administrative interfaces for authentication anomalies and unusual configuration changes.
- Log and alert on new DNS resolvers, static routes, or port forwards being written to affected devices.
- Ingest network telemetry from switch and wireless controllers into a centralized SIEM to identify lateral scanning that follows router compromise.
How to Mitigate CVE-2024-32292
Immediate Actions Required
- Restrict access to the Tenda W30E web management interface to trusted administrative hosts only, and disable remote management from wireless or guest networks.
- Segment vulnerable routers away from sensitive network zones until a firmware fix is available.
- Rotate administrative credentials on the device and audit configuration for unauthorized changes.
Patch Information
At the time of publication, no vendor advisory or patched firmware release is referenced in the NVD data for CVE-2024-32292. Administrators should monitor the Tenda support portal for updated firmware addressing the formexeCommand command injection and apply it as soon as it is released.
Workarounds
- Place the router behind an upstream firewall that filters access to its management ports (typically TCP 80 and 443) from all but designated administrative subnets.
- Disable wireless access to the management interface and enforce wired-only administration where feasible.
- Consider replacing the device with a supported model if the vendor does not publish a fix, particularly in environments where adjacent-network exposure cannot be reduced.
# Example upstream firewall rule (Linux iptables) restricting management access
# Allow management only from a trusted admin host, drop everything else
iptables -A FORWARD -s 192.0.2.10 -d <router_ip> -p tcp -m multiport --dports 80,443 -j ACCEPT
iptables -A FORWARD -d <router_ip> -p tcp -m multiport --dports 80,443 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
