CVE-2021-1529

Cisco IOS XE SD-WAN Software Command Injection Vulnerability

Published Oct 21, 2021 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-6996 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Subscriptions

Cisco 1000 Integrated Services Router 1100-4g\/6g Integrated Services Router 1100-4p Integrated Services Router 1100-8p Integrated Services Router 1100 Integrated Services Router 1101-4p Integrated Services Router 1101 Integrated Services Router 1109-2p Integrated Services Router 1109-4p Integrated Services Router 1109 Integrated Services Router 1111x-8p Integrated Services Router 1111x Integrated Services Router 111x Integrated Services Router 1120 Integrated Services Router 1160 Integrated Services Router 4000 Integrated Services Router 4221 Integrated Services Router 4321 Integrated Services Router 4331 Integrated Services Router 4351 Integrated Services Router 4431 Integrated Services Router 4451-x Integrated Services Router 4451 Integrated Services Router 4461 Integrated Services Router Asr 1000 Asr 1000-esp100 Asr 1000-x Asr 1001 Asr 1001-hx Asr 1001-hx R Asr 1001-x Asr 1001-x R Asr 1002 Asr 1002-hx Asr 1002-hx R Asr 1002-x Asr 1002-x R Asr 1002 Fixed Router Asr 1004 Asr 1006 Asr 1006-x Asr 1009-x Asr 1013 Asr 1023 Catalyst 8300-1n1s-4t2x Catalyst 8300-1n1s-6t Catalyst 8300-2n2s-4t2x Catalyst 8300-2n2s-6t Catalyst 8500 Catalyst 8500l Catalyst 8510csr Catalyst 8510msr Catalyst 8540csr Catalyst 8540msr Csr 1000v Ios Xe Ios Xe Sd-wan
Weaknesses

Sources

Status
PUBLISHED
Assigner
cisco
Published
Updated
Nov 7, 2024, 9:47 PM
Reserved
Nov 13, 2020, 12:00 AM
Status
Modified
Published
Oct 21, 2021, 3:15 AM
Modified
Jun 17, 2026, 3:31 AM