CVE-2023-44487 — HTTP/2 Rapid Reset Attack Vulnerability
CVE-2023-44487: HTTP/2 Rapid Reset Attack Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | IETF |
| Product | HTTP/2 |
| Date added | 2023-10-10 |
| Due date | 2023-10-31 |
| Ransomware campaign use | Unknown |
Description
HTTP/2 contains a rapid reset vulnerability that allows for a distributed denial-of-service attack (DDoS).
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
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
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-44487
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog