Cisco NX-OS Software Python Parser Privilege Escalation Vulnerability

medium Nessus Plugin ID 126446

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Synopsis

The remote device is missing a vendor-supplied security patch

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.

Please see the included Cisco BIDs and Cisco Security Advisory for more information

Solution

Upgrade to the relevant fixed version referenced in Cisco bugs ID CSCvi99284, CSCvh24788, CSCvi99282, CSCvi99288

Plugin Details

Severity: Medium

ID: 126446

File Name: cisco-sa-20190515-nxos-pyth-escal.nasl

Version: 1.6

Type: combined

Family: CISCO

Published: 7/3/2019

Updated: 12/20/2019

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2019-1727

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:nx-os

Required KB Items: Host/Cisco/NX-OS/Version, Host/Cisco/NX-OS/Model, Host/Cisco/NX-OS/Device

Exploit Ease: No known exploits are available

Patch Publication Date: 5/15/2019

Vulnerability Publication Date: 5/15/2019

Reference Information

CVE: CVE-2019-1727

BID: 108341

CWE: 264

CISCO-SA: cisco-sa-20190515-nxos-pyth-escal

IAVA: 2019-A-0173

CISCO-BUG-ID: CSCvh24788, CSCvi99282, CSCvi99284, CSCvi99288

Detections

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