IBM Breach Incident Score: Analysis & Impact (IBM1767621759)

In this Rankiteo incident briefing, we review the IBM breach identified under incident ID IBM1767621759.

The analysis begins with a detailed overview of IBM's information like the linkedin page: https://www.linkedin.com/company/ibm, the number of followers: 19057383, the industry type: IT Services and IT Consulting and the number of employees: 341860 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 710 and after the incident was 708 with a difference of -2 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 IBM and their customers.

On 26 December 2025, IBM API Connect disclosed Authentication Bypass issues under the banner "IBM API Connect Authentication Bypass Vulnerability (CVE-2025-13915)".

IBM has released security updates to address a critical IBM API Connect vulnerability that could allow remote attackers to bypass authentication controls and gain unauthorized access to affected applications.

The disruption is felt across the environment, affecting IBM API Connect applications, and exposing Sensitive data and backend services managed through the platform.

In response, moved swiftly to contain the threat with measures like Disable self-service sign-up on the Developer Portal (temporary mitigation), and began remediation that includes Apply interim fixes (iFixes) for affected versions (10.0.8.0 through 10.0.8.5 and 10.0.11.0).

The case underscores how and recommending next steps like Assess deployments immediately, apply recommended fixes, and prioritize remediation due to critical severity rating.

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 remote attackers to circumvent authentication controls, exploitation could lead to full compromise, and network attack vector. Under the Credential Access tactic, the analysis identified Modify Authentication Process (T1556) with high confidence (90%), with evidence including authentication Bypass by Primary Weakness (CWE-305), and failure in enforcing authentication checks. Under the Defense Evasion tactic, the analysis identified Use Alternate Authentication Material: Pass the Hash (T1550.002) with moderate to high confidence (70%), supported by evidence indicating bypass authentication controls without user interaction or prior privileges. Under the Impact tactic, the analysis identified Resource Hijacking (T1496) with moderate to high confidence (80%), supported by evidence indicating complete compromise of confidentiality, integrity, and availability. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.