Cisco Webex Teams Web Interface Cross-Site Scripting Vulnerability Vulnerability (cisco-sa-webex-teams-xss-zLW9tD3)

medium Nessus Plugin ID 142590

Synopsis

The remote device is missing a vendor-supplied security patch (cisco-sa-webex-teams-xss-zLW9tD3)

Description

According to its self-reported version, Cisco Webex Teams is affected by a vulnerability. The vulnerability is due to improper validation of usernames. An attacker could exploit this vulnerability by creating an account that contains malicious HTML or script content and joining a space using the malicious account name. A successful exploit could allow the attacker to conduct cross-site scripting attacks and potentially gain access to sensitive browser-based information.

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 CSCvv40214

See Also

http://www.nessus.org/u?1fd2bc19

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvv40214

Plugin Details

Severity: Medium

ID: 142590

File Name: cisco-sa-webex-teams-xss-zLW9tD3.nasl

Version: 1.5

Type: local

Agent: windows

Family: Windows

Published: 11/6/2020

Updated: 11/19/2024

Configuration: Enable paranoid mode, Enable thorough checks

Supported Sensors: Nessus Agent, Nessus

Risk Information

CVSS Score Rationale: Based on vendor advisory

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2020-26067

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

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

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

Vulnerability Information

CPE: cpe:/o:cisco:webex_teams

Required KB Items: Settings/ParanoidReport, SMB/Registry/Enumerated, installed_sw/Webex Teams

Exploit Ease: No known exploits are available

Patch Publication Date: 11/4/2020

Vulnerability Publication Date: 11/4/2020

Reference Information

CVE: CVE-2020-26067

CWE: 80

CISCO-SA: cisco-sa-webex-teams-xss-zLW9tD3

IAVA: 2020-A-0511

CISCO-BUG-ID: CSCvv40214