🎯 CVE-2022-4967 🧪 PoC 🇪🇺 EUVD
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CVE-2022-4967 | strongSwan versions 5.9.2 through 5.9.5 are affected by authorization bypass through improper validation of certificate with host mismatch (CWE-297). When certificates are used to authenticate clients in TLS-based EAP methods, the IKE or EAP identity supplied by a client is not enforced to be contained in the client's certificate. So clients can authenticate with any trusted certificate and claim an arbitrary IKE/EAP identity as their own. This is problematic

strongSwan versions 5.9.2 through 5.9.5 are affected by authorization bypass through improper validation of certificate with host mismatch (CWE-297). When certificates are used to authenticate clients in TLS-based EAP methods, the IKE or EAP identity supplied by a client is not enforced to be contained in the client's certificate. So clients can authenticate with any trusted certificate and claim an arbitrary IKE/EAP identity as their own. This is problematic if the identity is used to make policy decisions. A fix was released in strongSwan version 5.9.6 in August 2022 (e4b4aabc4996fc61c37deab7858d07bc4d220136).

Klassifikation & Betroffenheit:
CWE-297 strongSwan strongSwan 5.9.2 <5.9.6strongswan strongswan *
Improper Validation of Certificate with Host Mismatch 🎯 High

The product communicates with a host that provides a certificate, but the product does not properly ensure that the certificate is actually associated with that host.

🛡️ Empfohlene Mitigation: Fully check the hostname of the certificate and provide the user with adequate information about the nature of the problem and how to proceed.
Vollständige Definition bei MITRE ➔
🩹 Patch verfügbar (OSV):
🩹 4cf8cd0321fbc93098b588991b3a6ab5edf823bb (Commit) 🩹 e4b4aabc4996fc61c37deab7858d07bc4d220136 (Commit)
📚 Referenzen & Quellen:
Ausnutzungs-Zeitleiste:
CVSS-Vektor-Analyse: 7.7
AV · Angriffsvektor Netzwerk
AC · Komplexität Gering
PR · Privilegien Gering
UI · Interaktion Keine
S · Scope Verändert
C · Vertraulichkeit Hoch
I · Integrität Keine
A · Verfügbarkeit Keine
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Veröffentlicht:14.05.2024
Aktualisiert:17.06.2026 05:22
Assigner (CNA):canonical
EUVD-ID:EUVD-2022-52219
Quellen: 🇪🇺 EUVD-Datenbank (ENISA) + 🇺🇸 NVD-Anreicherung · 24-h-Cache
CWE-297 ✓ Offizieller Patch / Advisory verfügbar
💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.
🔴 Live Security Advisory & EPSS Exploit Radar

Zero-Day & Vulnerability Intelligence Hub

Echtzeit-Tracking mit EPSS Exploit-Wahrscheinlichkeiten, Angriffsvektor-Decodern und KI-Patch-Anleitungen.

367k+ 🇪🇺 EUVD-Datenbank
0 🔴 Critical im Radar
0 ⚠️ CISA KEV
0 🔓 Aktiv ausgenutzt
1 🧪 PoC verfügbar
📊 Historien-Charts — Criticals-Trend · Vendors · EPSS-Verteilung
🔴 Criticals pro Monat (12 M) 2025-09: 80 2025-10: 317 2025-11: 257 2025-12: 426 2026-01: 431 2026-02: 417 2026-03: 649 2026-04: 574 2026-05: 683 2026-06: 941 2026-07: 1327 2026-08: 1828 2026-09: 1028 8.958 Criticals gesamt
🏢 Top-Vendor-Veröffentlichungen (6 M) Adobe Apple Google Linux Microsoft Oracle Corporation
● Adobe ● Apple ● Google ● Linux ● Microsoft ● Oracle
📈 EPSS-Verteilung (Messungen)
Tier2026-09-022026-09-20
≥90 %0489
≥50 %01477
≥10 %00
<10 %3000
Datenquellen & Methodik: Primärquelle ist die EUVD der ENISA (laufender Datenbank-Sync, alle 15 Minuten), abgeglichen mit dem CISA-KEV-Katalog und der NVD — Detail-Dossiers reichern fehlende Felder live per NVD an — mit Fallback auf CIRCL vulnerability-lookup (EU/Non-Profit, aggregiert CVE-, GitHub- und OSV-Advisories). Der CISA-KEV-Katalog (Known Exploited Vulnerabilities, ~1.700 aktiv ausgenutzte Schwachstellen) wird bei jedem Sync vollständig neu geladen und kreuzreferenziert — filterbar über die KEV-Pille. CVSS 3.1 wird nach Ampel-Logik aus Verteidigersicht dekodiert; EPSS bezeichnet die 30-Tage-Exploit-Wahrscheinlichkeit (FIRST.org).
🇪🇺 ENISA EUVD 🇺🇸 NVD ⚠️ CISA KEV ⚡ EPSS
Ökosystem & Hersteller Bedrohungs-Matrix:
Schweregrad & Status:
Hersteller (Datenbank-weit, 96.592 Einträge):
Quelle:
🔍
EPSS 0.5%
CVE-2022-4967 🌐 Netzwerk (Remote) 🔑 Geringe Nutzerrechte nötig
strongSwan

CVE-2022-4967 | strongSwan versions 5.9.2 through 5.9.5 are affected by authorization bypass through improper validation of certificate with host mismatch (CWE-297). When certificates are used to authenticate clients in TLS-based EAP methods, the IKE or EAP identity supplied by a client is not enforced to be contained in the client's certificate. So clients can authenticate with any trusted certificate and claim an arbitrary IKE/EAP identity as their own. This is problematic

strongSwan versions 5.9.2 through 5.9.5 are affected by authorization bypass through improper validation of certificate with host mismatch (CWE-297). When certificates are used to authenticate clients in TLS-based EAP methods, the IKE or EA

CWE-297 ✓ Offizieller Patch / Advisory verfügbar
💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.