Horizon Alert
Summary of the vulnerability and why it matters
This advisory concerns a critical vulnerability in Tenda 5G03 routers related to command injection, which could allow unauthenticated attackers to execute arbitrary commands on affected devices via a specific function. Given the nature of the affected technology, it's important to confirm if this specific product is deployed within the organization's environment.
- Commands can be run by attackers.
- It impacts internet-facing devices.
- Confirm if this router is used.
Attack Path
How an attacker could exploit the issue
An attacker can exploit this vulnerability by sending a specially crafted request over the network to a Tenda 5G03 router. This request targets the `action_radio_on_with_ia_apn` function, specifically manipulating the `ia` parameter to inject malicious commands. Successful exploitation allows an attacker to execute arbitrary commands on the affected device, potentially leading to complete system compromise.
- Attacker needs network access.
- Sends request to vulnerable function.
- Allows arbitrary command execution.
Live Threat
Current exploitation, exposure, and threat context
The vulnerability in the Tenda 5G03 router's radio function could allow an unauthenticated attacker to inject and execute arbitrary commands over the network. This could potentially affect the device's operational integrity and the security of the network it manages.
- Router command execution could be compromised.
- Network access can trigger command injection.
- Device functionality and network security at risk.
Operational Fix
Recommended remediation, mitigation, and detection steps
To address this command injection vulnerability in Tenda 5G03 routers, the primary responsibility likely falls to teams managing network edge devices or IoT deployments. The first critical step is to identify all instances of this specific Tenda router model within your environment. Confirm their network exposure and business criticality to prioritize remediation efforts and identify the accountable owner for these devices.
- Network and IoT teams own the issue.
- Verify router exposure and criticality.
- Plan vendor coordination or replacement.
