CVE-2020-3126

Published on: 04/13/2020 12:00:00 AM UTC

Last Modified on: 03/23/2021 11:23:38 PM UTC

CVE-2020-3126 - advisory for CSCvs24436

Source: Mitre Source: NIST CVE.ORG Print: PDF PDF
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N

Certain versions of Webex Meetings Server from Cisco contain the following vulnerability:

vulnerability within the Multimedia Viewer feature of Cisco Webex Meetings could allow an authenticated, remote attacker to bypass security protections. The vulnerability is due to missing security warning dialog boxes when a room host views shared multimedia files. An authenticated, remote attacker could exploit this vulnerability by using the host role to share files within the Multimedia sharing feature and convincing a former room host to view that file. A warning dialog normally appears cautioning users before the file is displayed; however, the former host would not see that warning dialog, and any shared multimedia would be rendered within the user's browser. The attacker could leverage this behavior to conduct additional attacks by including malicious files within a targeted room host's browser window.

  • CVE-2020-3126 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as LOW severity.
  • The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
  • Affected Vendor/Software: URL Logo Cisco - Cisco Webex Meetings Multimedia Viewer version = T39.3

CVSS3 Score: 3.5 - LOW

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW LOW REQUIRED
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED NONE LOW NONE

CVSS2 Score: 3.5 - LOW

Access
Vector
Access
Complexity
Authentication
NETWORK MEDIUM SINGLE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
NONE PARTIAL NONE

CVE References

Description Tags Link
Cisco Bug: CSCvs24436 - Cisco Webex Meetings Multimedia Sharing Feature Security Bypass Vulnerability Vendor Advisory
quickview.cloudapps.cisco.com
text/html
URL Logo CISCO 20200413 Cisco Webex Meetings Multimedia Viewer Vulnerability

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationCiscoWebex Meetings Servert39.3AllAllAll
ApplicationCiscoWebex Meetings Servert39.3AllAllAll
  • cpe:2.3:a:cisco:webex_meetings_server:t39.3:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:webex_meetings_server:t39.3:*:*:*:*:*:*:*:

Discovery Credit

Cisco would like to thank Alexandros Zacharis of European GNSS Agency (GSA) for reporting this vulnerability.

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