CVE-2019-1727 MEDIUM

CVE-2019-1727: Cisco NX-OS Software Python Parser Privilege Escalation Vulnerability

Vendor Cisco
Product Cisco NX-OS Software
Weakness CWE-264
Published May 15, 2019
Last update November 21, 2024

CVSS base score

4.2/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

Description

A vulnerability in the Python scripting subsystem of Cisco NX-OS Software could allow an authenticated, local attacker to escape the Python parser and issue arbitrary commands to elevate the attacker's privilege level. The vulnerability is due to insufficient sanitization of user-supplied parameters that are passed to certain Python functions in the scripting sandbox of the affected device. An attacker could exploit this vulnerability to escape the scripting sandbox and execute arbitrary commands to elevate the attacker's privilege level. To exploit this vulnerability, the attacker must have local access and be authenticated to the targeted device with administrative or Python execution privileges. These requirements could limit the possibility of a successful exploit.

Key dates

Disclosure timeline

May 15, 2019 CVE published
November 21, 2024 Record updated