CVE-2021-34723 MEDIUM

CVE-2021-34723: Cisco IOS XE SD-WAN Software Arbitrary File Overwrite Vulnerability

Vendor Cisco
Product Cisco IOS XE Software
Weakness CWE-668
Published September 23, 2021
Last update November 7, 2024
View on NVD All CVEs

CVSS base score

6.7/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A vulnerability in a specific CLI command that is run on Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the configuration database of an affected device. This vulnerability is due to insufficient validation of specific CLI command parameters. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of the configuration database and gain root-level access to an affected device.

Key dates

02Disclosure timeline

September 23, 2021 CVE published
November 7, 2024 Record updated