Cloudflare Breach Incident Score: Analysis & Impact (CLO4892148111525)

In this Rankiteo incident briefing, we review the Cloudflare breach identified under incident ID CLO4892148111525.

The analysis begins with a detailed overview of Cloudflare's information like the linkedin page: https://www.linkedin.com/company/cloudflare, the number of followers: 1097651, the industry type: Computer and Network Security and the number of employees: 6146 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 758 and after the incident was 749 with a difference of -9 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 Cloudflare and their customers.

Unspecified website(s) using Cloudflare recently reported "Cloudflare SSL Connection Failure to Origin Server", a noteworthy cybersecurity incident.

Cloudflare is unable to establish an SSL connection to the origin server.

The disruption is felt across the environment, affecting Origin server SSL configuration.

In response, and began remediation that includes Review and update SSL configuration on the origin server to ensure cipher suite compatibility with Cloudflare, and stakeholders are being briefed through Advisory for visitors to retry access; guidance for website owners to troubleshoot via provided link.

The case underscores how Ongoing (implied by troubleshooting guidance), and recommending next steps like Website owners should ensure their origin server’s SSL/TLS configuration aligns with Cloudflare’s supported cipher suites and protocols, Regularly test SSL/TLS compatibility with third-party services like Cloudflare to preempt connectivity issues and Monitor Cloudflare’s documentation for updates on supported cipher suites and configurations, with advisories going out to stakeholders covering Visitors: Retry access after a few minutes. Website owners: Review SSL configuration for compatibility.

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 lower confidence (30%), supported by evidence indicating vulnerability in the security infrastructure (SSL misconfiguration could be exploited for MiTM). Under the Persistence tactic, the analysis identified Adversary-in-the-Middle: LL(M)NRPoisoning and Relay (T1557.002) with lower confidence (40%), supported by evidence indicating could enable man-in-the-middle attacks or data interception (SSL failure as attack vector). Under the Defense Evasion tactic, the analysis identified Hide Artifacts: Downgrade Encryption (T1564.005) with moderate confidence (50%), supported by evidence indicating incompatible SSL configuration (potential forced downgrade to weaker/nonexistent encryption). Under the Impact tactic, the analysis identified Endpoint Denial of Service: Application or System Exploitation (T1499.004) with moderate to high confidence (80%), with evidence including prevents visitors from securely accessing the site (DoS via SSL failure), and downtime, loss of trust, and reputational damage and Data Destruction (T1485) with lower confidence (20%), supported by evidence indicating sEO penalties if search engines interpret downtime as poor site health (indirect data integrity impact). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.