Cisco Webex Meetings Desktop App for Mac Update Feature Code Execution (cisco-sa-webex-client-mac-X7vp65BL)

high Nessus Plugin ID 137649

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Synopsis

The remote videoconferencing software is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco Webex Meetings Desktop App for Mac is affected by a remote code execution vulnerability due to improper validation of cryptographic protections on files that are downloaded by the application as part of a software update. An unauthenticated, remote attacker can exploit this, by persuading a user to go to a website that returns files to the client that are similar to files that are returned from a valid Webex website, in order to execute arbitrary code on an affected system with the privileges of the user.

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 CSCvq03838

Plugin Details

Severity: High

ID: 137649

File Name: cisco-sa-webex-client-mac-X7vp65BL.nasl

Version: 1.4

Type: local

Agent: macosx

Family: MacOS X Local Security Checks

Published: 6/19/2020

Updated: 6/29/2021

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

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

CVSS Score Source: CVE-2020-3342

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: cpe:/a:cisco:webex_meetings

Required KB Items: installed_sw/Cisco Webex Meetings

Exploit Ease: No known exploits are available

Patch Publication Date: 6/17/2020

Vulnerability Publication Date: 6/17/2020

Reference Information

CVE: CVE-2020-3342

CISCO-SA: cisco-sa-webex-client-mac-X7vp65BL

IAVA: 2020-A-0273

CISCO-BUG-ID: CSCvq03838

Detections

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