CVE-2018-18555

Published: Dec 17, 2018Modified: Nov 21, 2024

9.9

Vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploitability: 3.1 / Impact: 6.0

Source: NVD

Description

A sandbox escape issue was discovered in VyOS 1.1.8. It provides a restricted management shell for operator users to administer the device. By issuing various shell special characters with certain commands, an authenticated operator user can break out of the management shell and gain access to the underlying Linux shell. The user can then run arbitrary operating system commands with the privileges afforded by their account.

Affected (1)

Products: Vyos: Vyos

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Vyos Vyos	Version 1.1.8

Related CWEs

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://blog.vyos.io/the-operator-level-is-proved-insecure-and-will-be-removed-in-the-next-releases

Source: cve@mitre.org

ExploitVendor Advisory

https://blog.vyos.io/the-operator-level-is-proved-insecure-and-will-be-removed-in-the-next-releases

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

ExploitVendor Advisory

Timeline

No history available yet.