CVE-2023-20046
Vulnérabilité élevée dans Cisco ASR 5000 Series Software (Cisco)
CVSS 8.8 · Élevée
EPSS 0.9%
Cisco•Cisco ASR 5000 Series Software•Versions : 21.14.b19, 21.18.0, 21.18.5, 21.18.26, 21.20.32, 21.20.22, 21.11.8, 21.17.0, 21.20.14, 21.23.n6, 21.13.14, 21.20.k6, 21.23.25, 21.11.2, 21.27.0, 21.14.11, 21.22.n5, 21.12.9, 21.26.15, 21.23.14, 21.20.4, 21.15.20, 21.11.14, 21.27.4, 21.20.34, 21.20.19, 21.24.3, 21.20.31, 21.11.19, 21.18.12, 21.18.15, 21.13.9, 21.19.n16, 21.19.4, 21.11.13, 21.19.9, 21.23.30, 21.18.13, 21.24.1, 21.15.7, 21.28.1, 21.19.n2, 21.22.n2, 21.11.6, 21.14.8, 21.17.11, 21.26.5, 21.15.12, 21.14.3, 21.20.20, 21.23.1, 21.20.9, 21.23.3, 21.16.c10, 21.11.9, 21.20.23, 21.18.4, 21.15.54, 21.15.30, 21.23.b3, 21.14.22, 21.16.c14, 21.15.41, 21.16.10, 21.27.5, 21.19.3, 21.18.3, 21.27.m0, 21.15.19, 21.15.59, 21.26.1, 21.13.1, 21.17.10, 21.23.18, 21.23.c18, 21.27.2, 21.28.m1, 21.23.0, 21.12.3, 21.16.5, 21.15.52, 21.13.21, 21.25.6, 21.19.10, 21.23.n9, 21.18.14, 21.12.4, 21.13.8, 21.16.c11, 21.13.15, 21.19.n4, 21.26.3, 21.22.0, 21.22.8, 21.15.57, 21.16.c17, 21.26.14, 21.12.18, 21.12.14, 21.14.6, 21.14.b17, 21.15.51, 21.14.b12, 21.15.48, 21.16.8, 21.15.60, 21.11.20, 21.18.11, 21.17.18, 21.20.3, 21.23.c16, 21.19.n9, 21.23.2, 21.23.9, 21.14.16, 21.15.28, 21.22.12, 21.16.4, 21.19.1, 21.20.15, 21.20.SV1, 21.13.10, 21.14.0, 21.21.1, 21.13.19, 21.13.20, 21.11.17, 21.22.n8, 21.15.10, 21.14.12, 21.15.29, 21.14.b22, 21.22.n3, 21.12.0, 21.15.47, 21.14.23, 21.18.16, 21.19.7, 21.12.22, 21.17.6, 21.17.16, 21.25.9, 21.13.13, 21.14.4, 21.27.3, 21.17.4, 21.13.4, 21.22.uj3, 21.20.k7, 21.11.12, 21.18.7, 21.12.5, 21.19.n5, 21.26.10, 21.17.8, 21.16.9, 21.20.30, 21.15.3, 21.15.2, 21.14.b14, 21.11.15, 21.25.14, 21.22.n12, 21.28.m0, 21.17.5, 21.25.8, 21.13.5, 21.22.ua0, 21.23.22, 21.13.7, 21.20.21, 21.23.12, 21.18.20, 21.15.1, 21.16.c9, 21.23.17, 21.15.26, 21.15.36, 21.15.0, 21.19.n3, 21.23.15, 21.23.yn14, 21.13.0, 21.11.18, 21.17.14, 21.15.11, 21.17.2, 21.17.3, 21.22.n11, 21.28.0, 21.16.d0, 21.16.2, 21.16.c12, 21.20.33, 21.17.15, 21.16.c16, 21.22.7, 21.20.SV2, 21.20.18, 21.25.7, 21.14.2, 21.16.c15, 21.13.6, 21.20.c22, 21.22.ua2, 21.20.13, 21.22.5, 21.19.n6, 21.14.b13, 21.15.16, 21.23.c17, 21.17.17, 21.20.16, 21.19.n11, 21.14.b15, 21.18.22, 21.11.7, 21.15.25, 21.18.24, 21.15.53, 21.13.18, 21.18.1, 21.21.3, 21.19.n14, 21.22.n10, 21.23.13, 21.20.17, 21.13.16, 21.15.39, 21.12.6, 21.15.14, 21.16.c13, 21.20.29, 21.15.17, 21.19.5, 21.23.n11, 21.11.11, 21.25.5, 21.22.ua3, 21.23.n10, 21.11.3, 21.22.ua5, 21.12.11, 21.26.13, 21.19.n12, 21.21.KS2, 21.20.0, 21.15.37, 21.28.m2, 21.19.0, 21.28.m3, 21.20.1, 21.15.43, 21.20.8, 21.18.25, 21.12.20, 21.20.2, 21.23.29, 21.23.n8, 21.22.6, 21.11.16, 21.12.15, 21.13.11, 21.11.10, 21.23.24, 21.15.4, 21.28.2, 21.15.46, 21.11.1, 21.14.19, 21.14.1, 21.12.21, 21.26.6, 21.20.p9, 21.23.5, 21.23.4, 21.19.n17, 21.19.8, 21.22.n6, 21.15.32, 21.15.15, 21.21.0, 21.15.40, 21.19.n8, 21.23.27, 21.20.SV3, 21.15.8, 21.20.u8, 21.22.n9, 21.12.13, 21.25.4, 21.19.6, 21.18.23, 21.15.6, 21.18.9, 21.22.4, 21.25.0, 21.22.3, 21.23.19, 21.13.3, 21.20.26, 21.12.16, 21.15.18, 21.13.2, 21.20.25, 21.25.12, 21.25.10, 21.18.17, 21.25.3, 21.26.7, 21.15.22, 21.20.12, 21.12.7, 21.15.21, 21.12.1, 21.16.3, 21.16.d1, 21.23.26, 21.19.n7, 21.14.9, 21.18.8, 21.18.18, 21.19.2, 21.23.b2, 21.20.7, 21.20.35, 21.12.2, 21.14.17, 21.15.24, 21.15.58, 21.16.6, 21.16.c19, 21.23.7, 21.13.17, 21.26.17, 21.12.12, 21.15.5, 21.22.n13, 21.23.6, 21.12.8, 21.20.11, 21.18.6, 21.25.13, 21.17.12, 21.14.b20, 21.14.7, 21.20.28, 21.20.SV5, 21.21.2, 21.14.5, 21.23.n7, 21.16.7, 21.23.16, 21.14.b18, 21.15.55, 21.17.19, 21.22.13, 21.15.45, 21.17.9, 21.23.11, 21.20.24, 21.23.23, 21.17.13, 21.18.2, 21.20.10, 21.20.5, 21.20.27, 21.22.n4, 21.19.11, 21.19.n13, 21.17.7, 21.13.12, 21.26.0, 21.19.n18, 21.23.8, 21.24.0, 21.23.21, 21.14.10, 21.18.21, 21.23.10, 21.22.11, 21.12.17, 21.11.4, 21.24.2, 21.22.n7, 21.14.20, 21.12.19, 21.17.1, 21.20.k8, 21.14.b21, 21.11.0, 21.15.33, 21.27.1, 21.15.27, 21.19.n10, 21.18.19, 21.20.6, 21.12.10, 21.16.c18, 21.25.11, 21.15.13, 21.19.n15, 21.11.5, 21.11.21
Description
A vulnerability in the key-based SSH authentication feature of Cisco StarOS Software could allow an authenticated, remote attacker to elevate privileges on an affected device. This vulnerability is due to insufficient validation of user-supplied credentials. An attacker could exploit this vulnerability by sending a valid low-privileged SSH key to an affected device from a host that has an IP address that is configured as the source for a high-privileged user account. A successful exploit could allow the attacker to log in to the affected device through SSH as a high-privileged user. There are workarounds that address this vulnerability.
Gravité et risque d'exploitation
CVE-2023-20046 obtient un score CVSS de 8.8/10, soit une gravité élevée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.86 %, ce qui la place devant 57.9 % des CVE référencées.
Que faire ?
- Vérifiez si Cisco ASR 5000 Series Software (versions 21.14.b19, 21.18.0, 21.18.5, 21.18.26, 21.20.32, 21.20.22, 21.11.8, 21.17.0, 21.20.14, 21.23.n6, 21.13.14, 21.20.k6, 21.23.25, 21.11.2, 21.27.0, 21.14.11, 21.22.n5, 21.12.9, 21.26.15, 21.23.14, 21.20.4, 21.15.20, 21.11.14, 21.27.4, 21.20.34, 21.20.19, 21.24.3, 21.20.31, 21.11.19, 21.18.12, 21.18.15, 21.13.9, 21.19.n16, 21.19.4, 21.11.13, 21.19.9, 21.23.30, 21.18.13, 21.24.1, 21.15.7, 21.28.1, 21.19.n2, 21.22.n2, 21.11.6, 21.14.8, 21.17.11, 21.26.5, 21.15.12, 21.14.3, 21.20.20, 21.23.1, 21.20.9, 21.23.3, 21.16.c10, 21.11.9, 21.20.23, 21.18.4, 21.15.54, 21.15.30, 21.23.b3, 21.14.22, 21.16.c14, 21.15.41, 21.16.10, 21.27.5, 21.19.3, 21.18.3, 21.27.m0, 21.15.19, 21.15.59, 21.26.1, 21.13.1, 21.17.10, 21.23.18, 21.23.c18, 21.27.2, 21.28.m1, 21.23.0, 21.12.3, 21.16.5, 21.15.52, 21.13.21, 21.25.6, 21.19.10, 21.23.n9, 21.18.14, 21.12.4, 21.13.8, 21.16.c11, 21.13.15, 21.19.n4, 21.26.3, 21.22.0, 21.22.8, 21.15.57, 21.16.c17, 21.26.14, 21.12.18, 21.12.14, 21.14.6, 21.14.b17, 21.15.51, 21.14.b12, 21.15.48, 21.16.8, 21.15.60, 21.11.20, 21.18.11, 21.17.18, 21.20.3, 21.23.c16, 21.19.n9, 21.23.2, 21.23.9, 21.14.16, 21.15.28, 21.22.12, 21.16.4, 21.19.1, 21.20.15, 21.20.SV1, 21.13.10, 21.14.0, 21.21.1, 21.13.19, 21.13.20, 21.11.17, 21.22.n8, 21.15.10, 21.14.12, 21.15.29, 21.14.b22, 21.22.n3, 21.12.0, 21.15.47, 21.14.23, 21.18.16, 21.19.7, 21.12.22, 21.17.6, 21.17.16, 21.25.9, 21.13.13, 21.14.4, 21.27.3, 21.17.4, 21.13.4, 21.22.uj3, 21.20.k7, 21.11.12, 21.18.7, 21.12.5, 21.19.n5, 21.26.10, 21.17.8, 21.16.9, 21.20.30, 21.15.3, 21.15.2, 21.14.b14, 21.11.15, 21.25.14, 21.22.n12, 21.28.m0, 21.17.5, 21.25.8, 21.13.5, 21.22.ua0, 21.23.22, 21.13.7, 21.20.21, 21.23.12, 21.18.20, 21.15.1, 21.16.c9, 21.23.17, 21.15.26, 21.15.36, 21.15.0, 21.19.n3, 21.23.15, 21.23.yn14, 21.13.0, 21.11.18, 21.17.14, 21.15.11, 21.17.2, 21.17.3, 21.22.n11, 21.28.0, 21.16.d0, 21.16.2, 21.16.c12, 21.20.33, 21.17.15, 21.16.c16, 21.22.7, 21.20.SV2, 21.20.18, 21.25.7, 21.14.2, 21.16.c15, 21.13.6, 21.20.c22, 21.22.ua2, 21.20.13, 21.22.5, 21.19.n6, 21.14.b13, 21.15.16, 21.23.c17, 21.17.17, 21.20.16, 21.19.n11, 21.14.b15, 21.18.22, 21.11.7, 21.15.25, 21.18.24, 21.15.53, 21.13.18, 21.18.1, 21.21.3, 21.19.n14, 21.22.n10, 21.23.13, 21.20.17, 21.13.16, 21.15.39, 21.12.6, 21.15.14, 21.16.c13, 21.20.29, 21.15.17, 21.19.5, 21.23.n11, 21.11.11, 21.25.5, 21.22.ua3, 21.23.n10, 21.11.3, 21.22.ua5, 21.12.11, 21.26.13, 21.19.n12, 21.21.KS2, 21.20.0, 21.15.37, 21.28.m2, 21.19.0, 21.28.m3, 21.20.1, 21.15.43, 21.20.8, 21.18.25, 21.12.20, 21.20.2, 21.23.29, 21.23.n8, 21.22.6, 21.11.16, 21.12.15, 21.13.11, 21.11.10, 21.23.24, 21.15.4, 21.28.2, 21.15.46, 21.11.1, 21.14.19, 21.14.1, 21.12.21, 21.26.6, 21.20.p9, 21.23.5, 21.23.4, 21.19.n17, 21.19.8, 21.22.n6, 21.15.32, 21.15.15, 21.21.0, 21.15.40, 21.19.n8, 21.23.27, 21.20.SV3, 21.15.8, 21.20.u8, 21.22.n9, 21.12.13, 21.25.4, 21.19.6, 21.18.23, 21.15.6, 21.18.9, 21.22.4, 21.25.0, 21.22.3, 21.23.19, 21.13.3, 21.20.26, 21.12.16, 21.15.18, 21.13.2, 21.20.25, 21.25.12, 21.25.10, 21.18.17, 21.25.3, 21.26.7, 21.15.22, 21.20.12, 21.12.7, 21.15.21, 21.12.1, 21.16.3, 21.16.d1, 21.23.26, 21.19.n7, 21.14.9, 21.18.8, 21.18.18, 21.19.2, 21.23.b2, 21.20.7, 21.20.35, 21.12.2, 21.14.17, 21.15.24, 21.15.58, 21.16.6, 21.16.c19, 21.23.7, 21.13.17, 21.26.17, 21.12.12, 21.15.5, 21.22.n13, 21.23.6, 21.12.8, 21.20.11, 21.18.6, 21.25.13, 21.17.12, 21.14.b20, 21.14.7, 21.20.28, 21.20.SV5, 21.21.2, 21.14.5, 21.23.n7, 21.16.7, 21.23.16, 21.14.b18, 21.15.55, 21.17.19, 21.22.13, 21.15.45, 21.17.9, 21.23.11, 21.20.24, 21.23.23, 21.17.13, 21.18.2, 21.20.10, 21.20.5, 21.20.27, 21.22.n4, 21.19.11, 21.19.n13, 21.17.7, 21.13.12, 21.26.0, 21.19.n18, 21.23.8, 21.24.0, 21.23.21, 21.14.10, 21.18.21, 21.23.10, 21.22.11, 21.12.17, 21.11.4, 21.24.2, 21.22.n7, 21.14.20, 21.12.19, 21.17.1, 21.20.k8, 21.14.b21, 21.11.0, 21.15.33, 21.27.1, 21.15.27, 21.19.n10, 21.18.19, 21.20.6, 21.12.10, 21.16.c18, 21.25.11, 21.15.13, 21.19.n15, 21.11.5, 21.11.21) 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.