CVE-2023-20035: cisco cisco ios xe software

Vulnerability summary

CVE-2023-20035 is a high (CVSS 7.8) vulnerability in cisco cisco ios xe software. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12% of scored vulnerabilities.

Timeline

1. 23-03-2023
   PublishedVulnerability first disclosed.
2. 28-10-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands with elevated privileges. This vulnerability is due to insufficient input validation by the system CLI. An attacker with privileges to run commands could exploit this vulnerability by first authenticating to an affected device using either local terminal access or a management shell interface and then submitting crafted input to the system CLI. A successful exploit could allow the attacker to execute commands on the underlying operating system with root-level privileges. An attacker with limited user privileges could use this vulnerability to gain complete control over the system. Note: For additional information about specific impacts, see the Details section of this advisory.

• CWE-146Improper Neutralization of Expression/Command DelimitersThe product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as expression or command delimiters when they are sent to a downstream component.