Horizon Alert
Summary of the vulnerability and why it matters
This advisory concerns a critical vulnerability identified in Tenda i29 networking devices, specifically related to a buffer overflow in a function that manages wireless radio settings. The vulnerability allows for unauthenticated remote exploitation, meaning an attacker could potentially gain unauthorized access and control over the affected devices. While the specific business impact is not detailed, critical vulnerabilities in network infrastructure can pose significant risks to data integrity and availability.
- A critical flaw allows remote takeover of Tenda i29 devices.
- This impacts network infrastructure, a common attack target.
- Confirm relevance and potential exposure to your network.
Attack Path
How an attacker could exploit the issue
An attacker could remotely target the Tenda i29 router by sending specially crafted network traffic to its web interface. This traffic could exploit a buffer overflow vulnerability within the `wifiRadioSetIndoor` function when manipulating the bandwidth parameter. Successful exploitation could allow an attacker to remotely execute code on the device.
- No authentication or user interaction required.
- Triggered by manipulating the bandwidth parameter.
- Enables remote code execution.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability could allow an unauthenticated attacker to cause a denial of service or potentially execute arbitrary code on the affected device by sending a specially crafted request. This could disrupt network services provided by the device and compromise its integrity.
- Asset at risk: Network device functionality and integrity.
- How exposure could happen: Unauthenticated network request.
- Realistic consequence: Network disruption or device compromise.
Operational Fix
Recommended remediation, mitigation, and detection steps
Identifying and addressing this critical vulnerability requires a coordinated effort across your IT and security teams. The first step is to pinpoint all instances of the affected Tenda i29 devices within your environment. Subsequently, determine their exposure and business criticality to prioritize remediation actions, engaging the appropriate system owner for resolution.
- Network or Security Team owns this issue.
- Verify device reachability and criticality first.
- Plan remediation based on device risk.
