CVE-2023-5649 Brocade CVE debrief

Who should care

System administrators and security teams responsible for Brocade ASCG systems should assess exposure and prioritize remediation to prevent potential Denial of Service (DoS) incidents.

Why it matters

CVE-2023-5649 is a medium-severity vulnerability in Brocade ASCG before v3.0, allowing local authenticated users to cause a Denial of Service (DoS). System administrators and security teams should assess exposure, prioritize remediation, and implement input validation and sanitization to prevent potential incidents.

• Denial of Service (DoS) incidents may occur if the vulnerability is exploited.
• System administrators and security teams must verify Brocade ASCG versions and configurations to ensure they are not vulnerable.
• Remediation priority is medium, as the vulnerability can be addressed by updating to version 3.0 or later.

Technical summary

The CVE record describes an Improper Input Validation vulnerability in Brocade ASCG before v3.0, which could allow a local authenticated user to provide invalid inputs, leading to a Denial of Service (DoS) when collecting 'supportsave' from a Brocade Switch. The vulnerability has a medium severity and requires defensive actions to address it. The technical details of the vulnerability involve the improper validation of user inputs, which could lead to service disruption. To mitigate this vulnerability, it is essential to review and update Brocade ASCG to version 3.0 or later and implement input validation and sanitization for user-provided data.

Defensive priority

Medium-priority defensive actions are recommended to address the Improper Input Validation vulnerability in Brocade ASCG.

Recommended defensive actions

• Review and update Brocade ASCG to version 3.0 or later to address the vulnerability.
• Implement input validation and sanitization for user-provided data in Brocade ASCG.
• Monitor Brocade ASCG systems for unusual activity or Denial of Service (DoS) incidents.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The CVE record and source item provide limited information about the vulnerability, primarily focusing on the Improper Input Validation issue in Brocade ASCG before v3.0. The evidence is based on the CVE Program record and the source item, which describe the vulnerability and its potential impact. However, additional verification is needed to confirm affected product deployments and assess exposure. The lack of detailed information about the vulnerability's exploitation and affected scope necessitates further investigation and review.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.