Zoom Breach Incident Score: Analysis & Impact (ZOO1769023542)

In this Rankiteo incident briefing, we review the Zoom breach identified under incident ID ZOO1769023542.

The analysis begins with a detailed overview of Zoom's information like the linkedin page: https://www.linkedin.com/company/zoom, the number of followers: 643210, the industry type: IT Services and IT Consulting and the number of employees: 12708 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 798 and after the incident was 798 with a difference of 0 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 Zoom and their customers.

Zoom recently reported "Critical Zoom Node Vulnerability Exposes Enterprises to Remote Code Execution", a noteworthy cybersecurity incident.

A severe command injection flaw in Zoom Node Multimedia Routers (MMRs) has been disclosed, allowing authenticated meeting participants to execute arbitrary code on vulnerable systems.

The disruption is felt across the environment, affecting Zoom Node Meetings Hybrid (ZMH) and Meeting Connector (MC) deployments, and exposing Potential data exfiltration.

In response, moved swiftly to contain the threat with measures like Patch release (MMR module version 5.2.1716.0 or later), and began remediation that includes Apply patches immediately, and stakeholders are being briefed through Official guidance in Zoom’s support documentation.

The case underscores how and recommending next steps like Apply patches immediately to mitigate risks to confidentiality, integrity, and availability.

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 (90%), supported by evidence indicating severe command injection flaw in Zoom Node Multimedia Routers (MMRs). Under the Execution tactic, the analysis identified Exploitation for Client Execution (T1203) with high confidence (90%), supported by evidence indicating execute arbitrary code on vulnerable systems via command injection. Under the Privilege Escalation tactic, the analysis identified Exploitation for Privilege Escalation (T1068) with moderate to high confidence (80%), supported by evidence indicating authenticated meeting participants to execute arbitrary code. Under the Impact tactic, the analysis identified Endpoint Denial of Service (T1499) with moderate to high confidence (80%), supported by evidence indicating denial-of-service attacks, compromising enterprise communication, Network Denial of Service (T1498) with moderate to high confidence (70%), supported by evidence indicating denial-of-service attacks, compromising enterprise communication, and Data Manipulation: Transmitted Data Manipulation (T1565.002) with moderate to high confidence (80%), supported by evidence indicating meeting manipulation, compromising enterprise communication. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating data exfiltration, meeting manipulation, or denial-of-service attacks. Under the Defense Evasion tactic, the analysis identified Exploitation for Defense Evasion (T1211) with moderate to high confidence (70%), supported by evidence indicating low attack complexity and network-accessible exploitation. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.