CVE Vulnerabilities

CVE-2021-1281

Published: Mar 24, 2021 | Modified: Nov 07, 2023
CVSS 3.x
6.7
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6.9 MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

A vulnerability in CLI management in Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to access the underlying operating system as the root user. This vulnerability is due to the way the software handles concurrent CLI sessions. An attacker could exploit this vulnerability by authenticating to the device as an administrative user and executing a sequence of commands. A successful exploit could allow the attacker to obtain access to the underlying operating system as the root user.

Affected Software

Name Vendor Start Version End Version
Ios_xe Cisco 16.9.1 (including) 16.9.1 (including)
Ios_xe Cisco 16.9.2 (including) 16.9.2 (including)
Ios_xe Cisco 16.9.3 (including) 16.9.3 (including)
Ios_xe Cisco 16.9.4 (including) 16.9.4 (including)
Ios_xe Cisco 16.10.1 (including) 16.10.1 (including)
Ios_xe Cisco 16.10.1a (including) 16.10.1a (including)
Ios_xe Cisco 16.10.1b (including) 16.10.1b (including)
Ios_xe Cisco 16.10.1c (including) 16.10.1c (including)
Ios_xe Cisco 16.10.1d (including) 16.10.1d (including)
Ios_xe Cisco 16.10.1e (including) 16.10.1e (including)
Ios_xe Cisco 16.10.1f (including) 16.10.1f (including)
Ios_xe Cisco 16.10.1g (including) 16.10.1g (including)
Ios_xe Cisco 16.10.1s (including) 16.10.1s (including)
Ios_xe Cisco 16.10.2 (including) 16.10.2 (including)
Ios_xe Cisco 16.10.3 (including) 16.10.3 (including)
Ios_xe Cisco 16.11.1 (including) 16.11.1 (including)
Ios_xe Cisco 16.11.1a (including) 16.11.1a (including)
Ios_xe Cisco 16.11.1b (including) 16.11.1b (including)
Ios_xe Cisco 16.11.1c (including) 16.11.1c (including)
Ios_xe Cisco 16.11.1s (including) 16.11.1s (including)
Ios_xe Cisco 16.11.2 (including) 16.11.2 (including)
Ios_xe Cisco 16.12.1 (including) 16.12.1 (including)
Ios_xe Cisco 16.12.1a (including) 16.12.1a (including)
Ios_xe Cisco 16.12.1c (including) 16.12.1c (including)
Ios_xe Cisco 16.12.1s (including) 16.12.1s (including)
Ios_xe Cisco 16.12.1t (including) 16.12.1t (including)
Ios_xe Cisco 16.12.1w (including) 16.12.1w (including)
Ios_xe Cisco 16.12.1x (including) 16.12.1x (including)
Ios_xe Cisco 16.12.1y (including) 16.12.1y (including)
Ios_xe Cisco 16.12.1z (including) 16.12.1z (including)
Ios_xe Cisco 16.12.1za (including) 16.12.1za (including)
Ios_xe Cisco 16.12.2 (including) 16.12.2 (including)
Ios_xe Cisco 16.12.2a (including) 16.12.2a (including)
Ios_xe Cisco 16.12.2s (including) 16.12.2s (including)
Ios_xe Cisco 16.12.2t (including) 16.12.2t (including)
Ios_xe Cisco 16.12.3 (including) 16.12.3 (including)
Ios_xe Cisco 16.12.3a (including) 16.12.3a (including)
Ios_xe Cisco 16.12.3s (including) 16.12.3s (including)
Ios_xe Cisco 16.12.4 (including) 16.12.4 (including)
Ios_xe Cisco 16.12.4a (including) 16.12.4a (including)
Ios_xe Cisco 17.1.1 (including) 17.1.1 (including)
Ios_xe Cisco 17.1.1a (including) 17.1.1a (including)
Ios_xe Cisco 17.1.1s (including) 17.1.1s (including)
Ios_xe Cisco 17.1.1t (including) 17.1.1t (including)
Ios_xe Cisco 17.1.2 (including) 17.1.2 (including)
Ios_xe Cisco 17.1.3 (including) 17.1.3 (including)
Ios_xe Cisco 17.2.1 (including) 17.2.1 (including)
Ios_xe Cisco 17.2.1a (including) 17.2.1a (including)
Ios_xe Cisco 17.2.1r (including) 17.2.1r (including)
Ios_xe Cisco 17.2.1v (including) 17.2.1v (including)
Ios_xe Cisco 17.2.2 (including) 17.2.2 (including)
Ios_xe Cisco 17.3.1 (including) 17.3.1 (including)
Ios_xe Cisco 17.3.1a (including) 17.3.1a (including)
Ios_xe Cisco 17.3.1w (including) 17.3.1w (including)
Ios_xe Cisco 17.3.2 (including) 17.3.2 (including)
Ios_xe Cisco 17.3.2a (including) 17.3.2a (including)
Ios_xe Cisco 17.4.1 (including) 17.4.1 (including)
Ios_xe Cisco 17.4.1a (including) 17.4.1a (including)
Ios_xe Cisco 17.4.1b (including) 17.4.1b (including)

References