CVE-2019-18802
envoy: malformed request header may cause bypass of route matchers resulting in escalation of privileges or information disclosure
Severidad por fuente
La etiqueta propia de Trivy es CRITICAL. Crítica según NVD, Photon OS. Más baja según Red Hat (alta).
Descripción
An issue was discovered in Envoy 1.12.0. An untrusted remote client may send an HTTP header (such as Host) with whitespace after the header content. Envoy will treat "header-value " as a different string from "header-value" so for example with the Host header "example.com " one could bypass "example.com" matchers.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| Photon OS 1.0 | envoy | 1.10.0-6.ph1 |
| Photon OS 2.0 | envoy | 1.10.0-6.ph2 |
Referencias
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00034.html
- https://access.redhat.com/security/cve/CVE-2019-18802
- https://blog.envoyproxy.io
- https://github.com/envoyproxy/envoy/commits/master
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-356m-vhw2-wcm4
- https://groups.google.com/forum/#!topic/envoy-users/m7z5fGkCzPI
- https://groups.google.com/forum/#%21forum/envoy-users
- https://nvd.nist.gov/vuln/detail/CVE-2019-18802