CVE-2021-1529

Published: Oct 21, 2021Modified: Nov 21, 2024

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges. The vulnerability is due to insufficient input validation by the system CLI. An attacker could exploit this vulnerability by authenticating to an affected device and submitting crafted input to the system CLI. A successful exploit could allow the attacker to execute commands on the underlying operating system with root privileges.

Affected (7)

Products: Cisco: Ios Xe, Ios Xe Sd Wan

Cisco

2 products

Ios Xe

Ios Xe Sd Wan

Configuration A

6 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Cisco Ios Xe	From 16.12 to 17.0
Cisco Ios Xe	From 17.2 to 17.2.3
Cisco Ios Xe	From 17.3 to 17.3.4
Cisco Ios Xe	From 17.4 to 17.4.2
Cisco Ios Xe	From 17.5 to 17.5.1a
Cisco Ios Xe	Version 17.6.0

Running on/with	Platform Versions
Cisco 1000 Integrated Services Router	All versions

Configuration B

1 vulnerable · 54 platform

Vulnerable Software	Affected Versions
Cisco Ios Xe Sd Wan	From 17.2.1r

Running on/with	Platform Versions
Cisco 1100 4g/6g Integrated Services Router	All versions
Cisco 1100 4p Integrated Services Router	All versions
Cisco 1100 8p Integrated Services Router	All versions
Cisco 1100 Integrated Services Router	All versions
Cisco 1101 4p Integrated Services Router	All versions
Cisco 1101 Integrated Services Router	All versions
Cisco 1109 2p Integrated Services Router	All versions
Cisco 1109 4p Integrated Services Router	All versions
Cisco 1109 Integrated Services Router	All versions
Cisco 1111x 8p Integrated Services Router	All versions
Cisco 1111x Integrated Services Router	All versions
Cisco 111x Integrated Services Router	All versions
Cisco 1120 Integrated Services Router	All versions
Cisco 1160 Integrated Services Router	All versions
Cisco 4000 Integrated Services Router	All versions
Cisco 4221 Integrated Services Router	All versions
Cisco 4321 Integrated Services Router	All versions
Cisco 4331 Integrated Services Router	All versions
Cisco 4351 Integrated Services Router	All versions
Cisco 4431 Integrated Services Router	All versions
Cisco 4451 X Integrated Services Router	All versions
Cisco 4451 Integrated Services Router	All versions
Cisco 4461 Integrated Services Router	All versions
Cisco Asr 1000	All versions
Cisco Asr 1000 Esp100	All versions
Cisco Asr 1000 X	All versions
Cisco Asr 1001	All versions
Cisco Asr 1001 Hx	All versions
Cisco Asr 1001 Hx R	All versions
Cisco Asr 1001 X	All versions
Cisco Asr 1001 X R	All versions
Cisco Asr 1002	All versions
Cisco Asr 1002 Hx	All versions
Cisco Asr 1002 Hx R	All versions
Cisco Asr 1002 X	All versions
Cisco Asr 1002 X R	All versions
Cisco Asr 1002 Fixed Router	All versions
Cisco Asr 1004	All versions
Cisco Asr 1006	All versions
Cisco Asr 1006 X	All versions
Cisco Asr 1009 X	All versions
Cisco Asr 1013	All versions
Cisco Asr 1023	All versions
Cisco Catalyst 8300 1n1s 4t2x	All versions
Cisco Catalyst 8300 1n1s 6t	All versions
Cisco Catalyst 8300 2n2s 4t2x	All versions
Cisco Catalyst 8300 2n2s 6t	All versions
Cisco Catalyst 8500	All versions
Cisco Catalyst 8500l	All versions
Cisco Catalyst 8510csr	All versions
Cisco Catalyst 8510msr	All versions
Cisco Catalyst 8540csr	All versions
Cisco Catalyst 8540msr	All versions
Cisco Csr 1000v	All versions

Related CWEs

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

References (2)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-rhpbE34A

Source: psirt@cisco.com

Vendor Advisory

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-rhpbE34A

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.