Cybersecurity Alerts

HTTP/2 Rapid Reset Attack Vulnerability

HTTP/2 contains a rapid reset vulnerability that allows for a distributed denial-of-service attack (DDoS).

Required Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Weakness Classification

CWE-400

References

This vulnerability affects a common open-source component, third-party library, or protocol used by different products. For more information, please see: HTTP/2 Rapid Reset Vulnerability, CVE-2023-44487 | CISA: https://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487

• https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/
• https://nvd.nist.gov/vuln/detail/CVE-2023-44487