kumahq/kuma · Security
github.com/kumahq/kuma affected by CVE-2023-44487
- GHSA ID
- GHSA-9wmc-rg4h-28wv
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
Impact
Envoy and Go HTTP/2 protocol stack is vulnerable to the "Rapid Reset" class of exploits, which send a sequence of HEADERS frames optionally followed by RST_STREAM frames.
This can be exercised if you use the builtin gateway and receive untrusted http2 traffic.
Patches
https://github.com/kumahq/kuma/pull/8023 https://github.com/kumahq/kuma/pull/8001 https://github.com/kumahq/kuma/pull/8034
Workarounds
Disable http2 on the gateway listener with a MeshProxyPatch or ProxyTemplate.
References
https://github.com/advisories/GHSA-qppj-fm5r-hxr3 https://github.com/golang/go/issues/63417 https://github.com/envoyproxy/envoy/security/advisories/GHSA-jhv4-f7mr-xx76 https://cloud.google.com/blog/products/identity-security/how-it-works-the-novel-http2-rapid-reset-ddos-attack https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/?sf269548684=1 https://www.envoyproxy.io/docs/envoy/latest/configuration/best_practices/edge
References
- https://github.com/kumahq/kuma/security/advisories/GHSA-9wmc-rg4h-28wv ↗
- https://github.com/kumahq/kuma/pull/8001 ↗
- https://github.com/kumahq/kuma/pull/8023 ↗
- https://github.com/kumahq/kuma/pull/8034 ↗
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-jhv4-f7mr-xx76 ↗
- https://github.com/golang/go/issues/63417 ↗
- https://cloud.google.com/blog/products/identity-security/how-it-works-the-novel-http2-rapid-reset-ddos-attack ↗
- https://github.com/advisories/GHSA-qppj-fm5r-hxr3 ↗
- https://www.envoyproxy.io/docs/envoy/latest/configuration/best_practices/edge ↗
- https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/?sf269548684=1 ↗
- https://github.com/advisories/GHSA-9wmc-rg4h-28wv ↗