External risk intelligence

D-Link Router Buffer Overflow Vulnerability.

CVE advisoryKnown Exploit

CVE-2022-37055

D-Link routers contain a buffer overflow vulnerability, enabling unauthorized control. This affects network operations and data integrity. The risk to organizations includes potential system compromise and data breaches due to the ease of remote exploitation.

5Halo Surface Signal

Buffer Overflow

Dlink Go Rt Ac750 Firmware

2.00b021.01b03

External exposure likelihood

Halo Surface Signal score for CVE-2022-37055

The affected product is a consumer wireless router. By design, these devices serve as internet edge gateways, and their management interfaces or services are frequently exposed to the public internet in common deployment scenarios.

Horizon Alert

Summary of the vulnerability and why it matters

D-Link Go-RT-AC750 routers are vulnerable due to a buffer overflow flaw. This weakness allows unauthorized access and control over the affected devices. The potential impact includes significant disruption to network operations and data integrity.

  • Vulnerable router firmware
  • Buffer overflow flaw
  • Network disruption and data compromise

Attack Path

How an attacker could exploit the issue

This vulnerability allows for a buffer overflow in D-Link routers. Attackers can exploit this by sending specially crafted data to the device. This can lead to unauthorized control over the affected system.

  • Unauthenticated network access required
  • Attacker sends malicious data
  • Results in system control

Live Threat

Current exploitation, exposure, and threat context

This vulnerability presents a significant risk to organizations due to its ease of exploitation and potential for widespread damage. Attackers with a high skill level could exploit this flaw remotely without requiring any prior access or conditions. The potential for attackers to gain high levels of control over affected systems makes this a critical issue demanding immediate attention.

  • Likely attacker skill level: High
  • Required access or conditions: None
  • Business risk or urgency: Critical

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability impacts D-Link Go-RT-AC750 devices, potentially allowing attackers to gain control through a buffer overflow. Organizations should prioritize identifying all affected devices within their network to prevent unauthorized access and potential data breaches. Addressing this issue is critical to maintaining system integrity and business operations.

  • Locate all impacted devices.
  • Restrict network access.
  • Implement vendor updates.
  • Confirm successful remediation.
  • Observe for suspicious activity.

Frequently asked questions

What is the D-Link Go-RT-AC750 router and its vulnerability context?

The D-Link Go-RT-AC750 is a wireless router providing internet and network connectivity. It is affected by a buffer overflow vulnerability described in CVE-2022-37055.

What is the weakness class for CVE-2022-37055 and how is it triggered?

CVE-2022-37055 is a buffer overflow vulnerability (CWE-120). Attackers can trigger it by sending specially crafted data to the router's network-facing services, leading to unauthorized control.

What is the scope of the CVE-2022-37055 impact?

The vulnerability is externally exposed, meaning attackers can exploit it over the network without requiring prior authentication or access to the device.

What is the relevance of the Halo Surface Signal for CVE-2022-37055?

Halo classifies this CVE as 'Very likely' to be exploited because the affected product is a consumer wireless router, a device type commonly exposed to the internet.

What practical steps should be taken regarding this D-Link router vulnerability?

Organizations should identify all affected D-Link Go-RT-AC750 devices, restrict network access, apply vendor-provided firmware updates, and monitor for suspicious activity to remediate this critical issue.

References