CVE-2020-3168

published 2020-02-26

CVE-2020-3168: A vulnerability in the Secure Login Enhancements capability of Cisco Nexus 1000V Switch for VMware vSphere could allow an unauthenticated, remote attacker to…

Priority P3 41 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

A vulnerability in the Secure Login Enhancements capability of Cisco Nexus 1000V Switch for VMware vSphere could allow an unauthenticated, remote attacker to cause an affected Nexus 1000V Virtual Supervisor Module (VSM) to become inaccessible to users through the CLI. The vulnerability is due to improper resource allocation during failed CLI login attempts when login parameters that are part of the Secure Login Enhancements capability are configured on an affected device. An attacker could exploit this vulnerability by performing a high amount of login attempts against the affected device. A successful exploit could cause the affected device to become inaccessible to other users, resulting in a denial of service (DoS) condition requiring a manual power cycle of the VSM to recover.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_nx-os_software	>= unspecified < n/a	n/a
cisco	nexus_1000v_switch_for_vmware_vsphere_secure_login_enhancements	—	—
cisco	nx-os	—	—

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v3.0 7.5 HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd v2.0 7.1 HIGH AV:N/AC:M/Au:N/C:N/I:N/A:C

vendor_cisco 7.5 HIGH

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