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CVE-2021-1424

Vulnérabilité moyenne dans Cisco ASR 5000 Series Software (Cisco)

CVSS 5.3 · Moyenne
EPSS 0.8%
Cisco•Cisco ASR 5000 Series Software•Versions : 21.18.0, 21.14.b19, 21.18.5, 21.15.18, 21.12.16, 21.18.11, 21.13.2, 21.19.n6, 21.14.b13, 21.15.16, 21.20.3, 21.14.a0, 21.17.17, 21.14.b15, 21.11.8, 21.17.0, 21.15.22, 21.14.16, 21.13.14, 21.15.28, 21.20.k6, 21.12.7, 21.16.4, 21.11.7, 21.15.25, 21.15.21, 21.12.1, 21.16.d1, 21.16.3, 21.19.1, 21.11.2, 21.14.11, 21.20.SV1, 21.15.53, 21.13.18, 21.13.10, 21.12.9, 21.14.9, 21.14.0, 21.21.1, 21.18.1, 21.13.19, 21.13.20, 21.11.17, 21.20.4, 21.15.20, 21.11.14, 21.18.8, 21.15.10, 21.13.16, 21.14.12, 21.19.2, 21.12.6, 21.15.29, 21.20.7, 21.15.14, 21.16.c13, 21.18.12, 21.14.b22, 21.11.19, 21.12.0, 21.15.47, 21.15.17, 21.19.5, 21.11.11, 21.12.2, 21.14.23, 21.14.17, 21.18.15, 21.13.9, 21.15.24, 21.11.3, 21.16.6, 21.12.11, 21.19.7, 21.19.4, 21.13.17, 21.11.13, 21.19.9, 21.12.12, 21.18.13, 21.17.6, 21.15.5, 21.17.16, 21.15.7, 21.12.8, 21.13.13, 21.20.11, 21.14.4, 21.18.6, 21.11.6, 21.20.0, 21.14.8, 21.17.12, 21.17.11, 21.14.b20, 21.14.7, 21.13.4, 21.17.4, 21.15.12, 21.20.k7, 21.20.SV5, 21.11.12, 21.14.3, 21.15.37, 21.20.9, 21.18.7, 21.19.0, 21.16.c10, 21.12.5, 21.11.9, 21.19.n5, 21.20.1, 21.15.43, 21.14.5, 21.20.8, 21.16.7, 21.17.8, 21.14.b18, 21.15.55, 21.12.20, 21.20.2, 21.15.3, 21.15.2, 21.18.4, 21.15.45, 21.17.9, 21.14.b14, 21.11.15, 21.15.54, 21.15.30, 21.11.16, 21.17.13, 21.13.11, 21.11.10, 21.17.5, 21.15.4, 21.18.2, 21.20.10, 21.15.46, 21.14.22, 21.13.5, 21.16.c14, 21.13.7, 21.11.1, 21.15.41, 21.14.19, 21.14.1, 21.15.1, 21.19.3, 21.16.c9, 21.12.21, 21.18.3, 21.15.26, 21.17.7, 21.15.19, 21.13.12, 21.15.36, 21.19.8, 21.13.1, 21.15.32, 21.15.15, 21.21.0, 21.17.10, 21.15.40, 21.15.0, 21.14.10, 21.12.3, 21.16.5, 21.19.n3, 21.20.SV3, 21.15.52, 21.12.17, 21.13.0, 21.13.21, 21.15.8, 21.11.18, 21.17.14, 21.11.4, 21.19.10, 21.15.11, 21.17.2, 21.14.20, 21.17.3, 21.12.19, 21.18.14, 21.16.d0, 21.16.2, 21.12.4, 21.13.8, 21.16.c11, 21.13.15, 21.16.c12, 21.17.1, 21.12.13, 21.19.n4, 21.20.u8, 21.14.b21, 21.17.15, 21.11.0, 21.15.33, 21.20.SV2, 21.15.27, 21.19.6, 21.15.6, 21.12.10, 21.20.6, 21.12.18, 21.12.14, 21.18.9, 21.14.6, 21.14.2, 21.14.b17, 21.16.c15, 21.13.6, 21.15.51, 21.15.13, 21.14.b12, 21.15.48, 21.11.5, 21.13.3, 21.16.8

Description

A vulnerability in the ipsecmgr process of Cisco ASR 5000 Series Software (StarOS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to insufficient validation of incoming Internet Key Exchange Version 2 (IKEv2) packets. An attacker could exploit this vulnerability by sending specifically malformed IKEv2 packets to an affected device. A successful exploit could allow the attacker to cause the ipsecmgr process to restart, which would disrupt ongoing IKE negotiations and result in a temporary DoS condition.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Gravité et risque d'exploitation

CVE-2021-1424 obtient un score CVSS de 5.3/10, soit une gravité moyenne. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.81 %, ce qui la place devant 56.2 % des CVE référencées.

Que faire ?

  • Vérifiez si Cisco ASR 5000 Series Software (versions 21.18.0, 21.14.b19, 21.18.5, 21.15.18, 21.12.16, 21.18.11, 21.13.2, 21.19.n6, 21.14.b13, 21.15.16, 21.20.3, 21.14.a0, 21.17.17, 21.14.b15, 21.11.8, 21.17.0, 21.15.22, 21.14.16, 21.13.14, 21.15.28, 21.20.k6, 21.12.7, 21.16.4, 21.11.7, 21.15.25, 21.15.21, 21.12.1, 21.16.d1, 21.16.3, 21.19.1, 21.11.2, 21.14.11, 21.20.SV1, 21.15.53, 21.13.18, 21.13.10, 21.12.9, 21.14.9, 21.14.0, 21.21.1, 21.18.1, 21.13.19, 21.13.20, 21.11.17, 21.20.4, 21.15.20, 21.11.14, 21.18.8, 21.15.10, 21.13.16, 21.14.12, 21.19.2, 21.12.6, 21.15.29, 21.20.7, 21.15.14, 21.16.c13, 21.18.12, 21.14.b22, 21.11.19, 21.12.0, 21.15.47, 21.15.17, 21.19.5, 21.11.11, 21.12.2, 21.14.23, 21.14.17, 21.18.15, 21.13.9, 21.15.24, 21.11.3, 21.16.6, 21.12.11, 21.19.7, 21.19.4, 21.13.17, 21.11.13, 21.19.9, 21.12.12, 21.18.13, 21.17.6, 21.15.5, 21.17.16, 21.15.7, 21.12.8, 21.13.13, 21.20.11, 21.14.4, 21.18.6, 21.11.6, 21.20.0, 21.14.8, 21.17.12, 21.17.11, 21.14.b20, 21.14.7, 21.13.4, 21.17.4, 21.15.12, 21.20.k7, 21.20.SV5, 21.11.12, 21.14.3, 21.15.37, 21.20.9, 21.18.7, 21.19.0, 21.16.c10, 21.12.5, 21.11.9, 21.19.n5, 21.20.1, 21.15.43, 21.14.5, 21.20.8, 21.16.7, 21.17.8, 21.14.b18, 21.15.55, 21.12.20, 21.20.2, 21.15.3, 21.15.2, 21.18.4, 21.15.45, 21.17.9, 21.14.b14, 21.11.15, 21.15.54, 21.15.30, 21.11.16, 21.17.13, 21.13.11, 21.11.10, 21.17.5, 21.15.4, 21.18.2, 21.20.10, 21.15.46, 21.14.22, 21.13.5, 21.16.c14, 21.13.7, 21.11.1, 21.15.41, 21.14.19, 21.14.1, 21.15.1, 21.19.3, 21.16.c9, 21.12.21, 21.18.3, 21.15.26, 21.17.7, 21.15.19, 21.13.12, 21.15.36, 21.19.8, 21.13.1, 21.15.32, 21.15.15, 21.21.0, 21.17.10, 21.15.40, 21.15.0, 21.14.10, 21.12.3, 21.16.5, 21.19.n3, 21.20.SV3, 21.15.52, 21.12.17, 21.13.0, 21.13.21, 21.15.8, 21.11.18, 21.17.14, 21.11.4, 21.19.10, 21.15.11, 21.17.2, 21.14.20, 21.17.3, 21.12.19, 21.18.14, 21.16.d0, 21.16.2, 21.12.4, 21.13.8, 21.16.c11, 21.13.15, 21.16.c12, 21.17.1, 21.12.13, 21.19.n4, 21.20.u8, 21.14.b21, 21.17.15, 21.11.0, 21.15.33, 21.20.SV2, 21.15.27, 21.19.6, 21.15.6, 21.12.10, 21.20.6, 21.12.18, 21.12.14, 21.18.9, 21.14.6, 21.14.2, 21.14.b17, 21.16.c15, 21.13.6, 21.15.51, 21.15.13, 21.14.b12, 21.15.48, 21.11.5, 21.13.3, 21.16.8) est présent sur votre parc.
  • Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
  • À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
  • Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.

Références

Rechercher une autre CVE