CVE-2025-62645

Comprehensive Technical Analysis of CVE-2025-62645

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-62645 CVSS Score: 9.9

The vulnerability in the Restaurant Brands International (RBI) assistant platform allows a remote authenticated attacker to obtain a token with administrative privileges via the createToken GraphQL mutation. The CVSS score of 9.9 indicates a critical severity, reflecting the potential for significant impact on the confidentiality, integrity, and availability of the affected systems.

Severity Evaluation:

• Confidentiality Impact: High
• Integrity Impact: High
• Availability Impact: High
• Exploitability: High
• Remediation Level: Official-Fix

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Remote Authenticated Attack: An attacker with valid credentials can exploit the vulnerability to escalate privileges.
• GraphQL Mutation: The createToken mutation is the specific entry point for the attack.

Exploitation Methods:

• Token Generation: By sending a specially crafted GraphQL mutation request, an attacker can generate an administrative token.
• Privilege Escalation: Once the administrative token is obtained, the attacker can perform actions with elevated privileges, such as accessing sensitive data, modifying configurations, or executing administrative commands.

3. Affected Systems and Software Versions

Affected Systems:

• Restaurant Brands International (RBI) assistant platform

Software Versions:

• All versions through 2025-09-06

4. Recommended Mitigation Strategies

Immediate Actions:

• Patch Management: Apply the official patch or update provided by RBI as soon as it becomes available.
• Access Control: Implement strict access controls and monitor authenticated sessions for unusual activities.
• GraphQL Security: Enhance security measures around GraphQL endpoints, including input validation and rate limiting.

Long-Term Strategies:

• Regular Audits: Conduct regular security audits and vulnerability assessments.
• User Training: Educate users on the importance of strong passwords and recognizing phishing attempts.
• Intrusion Detection: Deploy intrusion detection systems (IDS) to monitor for suspicious activities.

5. Impact on Cybersecurity Landscape

Industry Impact:

• Brand Reputation: Compromise of high-profile brands like Popeyes, Tim Hortons, and Burger King can lead to significant reputational damage.
• Customer Trust: Breaches affecting customer data can erode trust and lead to financial losses.
• Regulatory Compliance: Organizations may face regulatory scrutiny and potential fines for non-compliance with data protection laws.

Broader Implications:

• Supply Chain Security: Vulnerabilities in platforms used by multiple brands highlight the importance of supply chain security.
• Emerging Threats: The use of GraphQL and similar technologies introduces new attack surfaces that require specialized security measures.

6. Technical Details for Security Professionals

GraphQL Mutation Example:

mutation {
  createToken(input: {
    username: "attacker@example.com",
    password: "password123",
    role: "admin"
  }) {
    token
  }
}

Detection and Response:

• Log Analysis: Monitor logs for unusual createToken requests and successful token generations.
• Anomaly Detection: Implement anomaly detection mechanisms to identify deviations from normal behavior.
• Incident Response: Develop and test incident response plans specific to privilege escalation attacks.

Security Best Practices:

• Least Privilege: Ensure that users are granted the minimum level of access necessary for their roles.
• Multi-Factor Authentication (MFA): Implement MFA to add an additional layer of security.
• Regular Updates: Keep all systems and dependencies up to date with the latest security patches.

Conclusion: CVE-2025-62645 represents a critical vulnerability that underscores the need for robust security measures in modern web applications. Organizations must prioritize patching, monitoring, and implementing best practices to mitigate the risk of similar vulnerabilities in the future.

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This analysis provides a comprehensive overview for cybersecurity professionals to understand the implications and necessary actions related to CVE-2025-62645.