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Cisco IOS XE Software Arbitrary Code Execution (cisco-sa-ios-lua-rce-7VeJX4f)

medium Nessus Plugin ID 141113

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco IOS XE Software is affected by an arbitrary code execution vulnerability in its Lua interpreter due to insufficient permission checks on Lua function calls. An authenticated, local attacker can exploit this to bypass authentication and execute arbitrary commands with root privileges.

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

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvs58804

See Also

http://www.nessus.org/u?2d0a7b31

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvs58804

Plugin Details

Severity: Medium

ID: 141113

File Name: cisco-sa-ios-lua-rce-7VeJX4f-iosxe.nasl

Version: 1.14

Type: combined

Family: CISCO

Published: 10/2/2020

Updated: 5/3/2024

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-2020-3423

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:ios_xe

Required KB Items: Host/Cisco/IOS-XE/Version, Host/Cisco/IOS-XE/Model

Exploit Ease: No known exploits are available

Patch Publication Date: 9/24/2020

Vulnerability Publication Date: 9/24/2020

Reference Information

CVE: CVE-2020-3423

CWE: 119

CISCO-SA: cisco-sa-ios-lua-rce-7VeJX4f

IAVA: 2020-A-0439-S

CISCO-BUG-ID: CSCvs58804