CVE-2022-40617
highPriorität · verfolgen · 31EPSS 0.018 · 78. PerzentilDEEURUUSEPSS · bewertet 2026-10-27
strongSwan before 5.9.8 allows remote attackers to cause a denial of service in the revocation plugin by sending a crafted end-entity (and intermediate CA) certificate that contains a CRL/OCSP URL that points to a server (under the attacker's control) that doesn't properly respond but (for example) just does nothing after the initial TCP handshake, or sends an excessive amount of application data.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- Behobenphoenix_contact_psirt
Update to the latest 2023.0.0 LTS Firmware Release. PHOENIX CONTACT recommends to always use an up-to-date version of the PLCnext Engineer.
- Mitigationphoenix_contact_psirt
Phoenix Contact recommends operating network-capable devices in closed networks or protected with a suitable firewall. For detailed information on our recommendations for measures to protect network-capable devices, please refer to our application note: Measures to protect network-capable devices with Ethernet connection
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.9–7.5
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (36)
Betroffene Produkte und Versionsbereiche.
Advisories (2)
Hersteller- und Ökosystem-Meldungen dazu.
- VDE-2023-001PHOENIX CONTACT: Multiple Vulnerabilities in PLCnext Firmware2023-02-14csaf · phoenix_contact_psirtDE
A new LTS Firmware release fixes known vulnerabilities in used open-source libraries. In addition, the following improvements have been implemented: HMI - Hardening against DoS attacks. - Hardening against memory leak problems in case of network attacks. WBM - Umlauts in the password of the 'User Manager' were not handled correctly. The password rule for upper and lower case was not followed. This could lead to unintentionally weaker passwords.- Hardening of WBM against Cross-Site-Scripting. User Manager - In security notifications 'SecurityToken' was always displayed as '0000000' when creating or modifying users.- Hardening of Trust and Identity Stores.
- WID-SEC-W-2022-1598strongSwan: Schwachstelle ermöglicht Denial of ServiceDeutsch2022-10-03csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in strongSwan und Ubuntu Linux ausnutzen, um einen Denial of Service Angriff durchzuführen.
auch bekannt als (4)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (13)
Externe Belege — Patches, Meldungen, Analysen.
- https://cxsecurity.com/cveshow/CVE-2022-40617/cnnvd
- https://github.com/strongswan/strongswan/releases/tag/5.9.8Patchcnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J3GAYIOCSLU57C45CO4UE4IV4JZE4W3L/cnnvd
- https://packetstormsecurity.com/files/168614/Ubuntu-Security-Notice-USN-5651-2.htmlcnnvd
- https://packetstormsecurity.com/files/169368/Debian-Security-Advisory-5249-1.htmlcnnvd
- https://vigilance.fr/vulnerability/strongSwan-overload-via-OCSP-URI-CRL-Distribution-Points-39451cnnvd
- https://www.auscert.org.au/bulletins/ESB-2022.5017cnnvd
- https://www.auscert.org.au/bulletins/ESB-2022.6106cnnvd
Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.
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