D-Link Breach Incident Score: Analysis & Impact (DLI1765260054)

In this Rankiteo incident briefing, we review the D-Link breach identified under incident ID DLI1765260054.

The analysis begins with a detailed overview of D-Link's information like the linkedin page: https://www.linkedin.com/company/dlink-corp, the number of followers: 12466, the industry type: Information Technology & Services and the number of employees: 528 employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 756 and after the incident was 752 with a difference of -4 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on D-Link and their customers.

D-Link recently reported "Exploitation of CVE-2022-37055 in D-Link Go-RT-AC750 Routers", a noteworthy cybersecurity incident.

A three-year-old buffer overflow vulnerability (CVE-2022-37055) in D-Link Go-RT-AC750 routers has been added to CISA's Known Exploited Vulnerabilities (KEV) Catalog.

The disruption is felt across the environment, affecting D-Link Go-RT-AC750 routers.

In response, and began remediation that includes D-Link strongly recommends discontinuing use of EoL hardware.

The case underscores how teams are taking away lessons such as Using end-of-life (EoL) network hardware poses significant security risks due to lack of vendor support and patches, and recommending next steps like Discontinue use of EoL hardware and replace with supported devices. Monitor CISA's KEV Catalog for active threats, with advisories going out to stakeholders covering D-Link recommends discontinuing use of EoL Go-RT-AC750 routers due to security risks.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with high confidence (95%), with evidence including exploitation of CVE-2022-37055 in D-Link Go-RT-AC750 routers, and buffer Overflow attack vector. Under the Execution tactic, the analysis identified Exploitation for Client Execution (T1203) with moderate to high confidence (80%), supported by evidence indicating buffer Overflow vulnerability (CVE-2022-37055) in routers. Under the Persistence tactic, the analysis identified Server Software Component: Web Shell (T1505.003) with moderate to high confidence (70%), supported by evidence indicating end-of-life routers remain unpatched and exploitable. Under the Defense Evasion tactic, the analysis identified Impair Defenses: Disable or Modify Tools (T1562.001) with moderate confidence (60%), supported by evidence indicating unsupported EoL hardware lacks security updates. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.