External risk intelligence

D-Link and TRENDnet Devices Allow Remote Code Execution

CVE advisoryKnown Exploit

CVE-2015-1187

Certain D-Link and TRENDnet devices have a vulnerability in their ping tool that allows remote attackers to execute arbitrary code. This poses a business risk due to potential system compromise and data impact.

4Halo Surface Signal

Authentication Bypass

Dlink Dir 626l Firmware

1.041.031.012.021.021.052.011.001.10na

External exposure likelihood

Halo Surface Signal score for CVE-2015-1187

This CVE affects consumer and small office routers. These devices are designed to serve as internet-facing gateways and edge services, making their management interfaces or diagnostic tools potentially reachable from the internet in common deployment configurations.

Horizon Alert

Summary of the vulnerability and why it matters

The ping tool in certain D-Link and TRENDnet devices contains a vulnerability that allows remote attackers to execute arbitrary code. This could lead to significant business risk if exploited.

  • Vulnerable ping tool functionality
  • Remote code execution flaw
  • Compromise of affected systems

Attack Path

How an attacker could exploit the issue

The ping functionality in affected devices is exposed to remote attackers. An attacker can leverage this exposure to gain unauthorized access. This access allows the attacker to execute arbitrary code, leading to a compromise of the device.

  • Exposure condition: Network access to ping tool.
  • Attacker starting point: No authentication required.
  • Trigger and result: Malicious input, arbitrary code execution.

Live Threat

Current exploitation, exposure, and threat context

The ping functionality in multiple D-Link and TRENDnet devices presents a significant risk due to the potential for remote code execution. Attackers with a high skill level could exploit this vulnerability without requiring any access or specific conditions. This could lead to widespread compromise of affected devices, impacting data integrity and system availability. Organizations should consider this a critical issue.

  • Attackers likely have high skill.
  • No access or conditions required.
  • High business risk and urgency.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability allows for remote code execution in certain D-Link and TRENDnet devices. Organizations should prioritize identifying all affected devices to mitigate potential business risks. The use of the ping tool, if exposed, could allow attackers to compromise systems and data.

  • Find affected devices.
  • Reduce exposure or isolate risk.
  • Fix, verify, and monitor.

Frequently asked questions

What devices are affected by CVE-2015-1187 and what are they used for?

CVE-2015-1187 affects multiple D-Link and TRENDnet devices, including various router models like the DIR-626L and TEW-731BR. These devices are commonly used to provide internet connectivity and networking services for homes and small offices.

How does the vulnerability in CVE-2015-1187 work and what weakness class does it fall under?

The vulnerability is a remote code execution flaw within the ping tool of affected devices. It falls under the weakness class CWE-287, which relates to improper authentication. An attacker can exploit this by sending specially crafted input to the ping address parameter.

What are the preconditions for an attacker to exploit CVE-2015-1187?

An attacker can exploit this vulnerability without needing any prior access or authentication. The bug is triggered via the `ping_addr` parameter of the ping tool, meaning an attacker only needs network access to the affected device's ping functionality to attempt exploitation.

Who should be concerned about this vulnerability, considering its exposure?

Anyone managing D-Link or TRENDnet devices affected by this CVE should be concerned. The Halo Surface Signal indicates this is likely to affect internet-facing devices, meaning the vulnerability could be reachable from the internet, posing a significant risk to network security.

What is the first step for organizations running this technology to respond?

The immediate first step is to identify all D-Link and TRENDnet devices within the network that may be affected by this vulnerability. Once identified, steps should be taken to reduce their exposure or isolate them to mitigate potential risks.

References