CVE-2021-1391 MEDIUM

CVE-2021-1391: Cisco IOS and IOS XE Software Privilege Escalation Vulnerability

Vendor Cisco
Product Cisco IOS
Weakness CWE-489
Published March 24, 2021
Last update November 8, 2024

CVSS base score

5.1/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality Low
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A vulnerability in the dragonite debugger of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root privilege. The vulnerability is due to the presence of development testing and verification scripts that remained on the device. An attacker could exploit this vulnerability by bypassing the consent token mechanism with the residual scripts on the affected device. A successful exploit could allow the attacker to escalate from privilege level 15 to root privilege.

Key dates

02Disclosure timeline

March 24, 2021 CVE published
November 8, 2024 Record updated