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Cisco XE: CVE-2021-1442: Cisco IOS XE Software Plug-and-Play Privilege Escalation Vulnerability

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Cisco XE: CVE-2021-1442: Cisco IOS XE Software Plug-and-Play Privilege Escalation Vulnerability

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
03/25/2021
Created
03/25/2021
Added
03/25/2021
Modified
01/18/2022

Description

A vulnerability in a diagnostic command for the Plug-and-Play (PnP) subsystem of Cisco IOS XE Software could allow an authenticated, local attacker to elevate privileges to the level of an Administrator user (level 15) on an affected device. The vulnerability is due to insufficient protection of sensitive information. An attacker with low privileges could exploit this vulnerability by issuing the diagnostic CLI show pnp profile when a specific PnP listener is enabled on the device. A successful exploit could allow the attacker to obtain a privileged authentication token. This token can be used to send crafted PnP messages and execute privileged commands on the targeted system.

Solution(s)

  • cisco-xe-upgrade-latest

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