CVE-2024-23324

Envoy ext auth can be bypassed when Proxy protocol filter sets invalid UTF-8 metadata

En bref

Sévérité: HIGH 8.6
EPSS: EPSS 0.60 % · centile 49 (2026-10-27)
État: PUBLISHED
Publiée: 2024-02-09
Mise à jour: 2024-08-19
Attribuée par: GitHub_M
Statut NVD: Modified

Description

Envoy is a high-performance edge/middle/service proxy. External authentication can be bypassed by downstream connections. Downstream clients can force invalid gRPC requests to be sent to ext_authz, circumventing ext_authz checks when failure_mode_allow is set to true. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	HIGH 8.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N	GitHub_M
CVSS 3.1	HIGH 8.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N	NVD · security-advisories@github.com (Secondary)
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	NVD · nvd@nist.gov (Primary)

Faiblesses (CWE)

CWE-20

Références européennes

ENISA EUVD · EUVD-2024-20839
GCVE · GCVE-0-2024-23324

Avis du CERT-FR

CERTFR-2024-AVI-0156 — Multiples vulnérabilités dans les produits Tenable · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* ≥ 1.26.0 < 1.26.7
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* ≥ 1.27.0 < 1.27.3
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* ≥ 1.28.0 < 1.28.1
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* ≥ 1.29.0 < 1.29.1

Produits affectés

Produit	Versions
envoyproxy · envoy	affected >= 1.29.0, < 1.29.1 ; affected >= 1.28.0, < 1.28.1 ; affected >= 1.27.0, < 1.27.3 ; affected < 1.26.7

Références

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD