CVE-2020-3142 Cisco Webex Meetings Suite and Cisco Webex Meetings Online Unauthenticated Meeting Join Vulnerability
Unauthenticated remote attackers can join password-protected Webex meetings via mobile app deep links, bypassing authentication controls.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-3142?
CVE-2020-3142 is a high-severity authentication bypass vulnerability in Cisco Webex Meetings Online, published on 26 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in Cisco Webex Meetings Suite sites and Cisco Webex Meetings Online sites could allow an unauthenticated, remote attendee to join a password-protected meeting without providing the meeting password. The connection attempt must initiate from a Webex mobile application for either iOS or Android. The vulnerability is due to unintended meeting information exposure in a specific meeting join flow for mobile applications. An unauthorized attendee could exploit this vulnerability by accessing a known meeting ID or meeting URL from the mobile device’s web browser. The browser will then request to launch the device’s Webex mobile application. A successful exploit could allow the unauthorized attendee to join the password-protected meeting. The unauthorized attendee will be visible in the attendee list of the meeting as a mobile attendee. Cisco has applied updates that address this vulnerability and no user action is required. This vulnerability affects Cisco Webex Meetings Suite sites and Cisco Webex Meetings Online sites releases earlier than 39.11.5 and 40.1.3.
Which versions are affected by CVE-2020-3142?
It affects 1 product.
Products include Cisco Webex Meetings Online.
How do I fix CVE-2020-3142?
No fix has been published for CVE-2020-3142 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2020-3142 being exploited?
There is no known exploitation of CVE-2020-3142 in the wild and no public exploit code.
Other vulnerabilities in Cisco Webex Meetings Online
- CVE-2018-0287 Code injection in Cisco WebEx Advanced Recording Format Player
- CVE-2019-1637 Cisco Webex Network Recording Player Arbitrary Code Execution Vulnerabilities
- CVE-2019-1638 Cisco Webex Network Recording Player Arbitrary Code Execution Vulnerabilities
- CVE-2019-1639 Cisco Webex Network Recording Player Arbitrary Code Execution Vulnerabilities
- CVE-2019-1640 Cisco Webex Network Recording Player Arbitrary Code Execution Vulnerabilities
Sources
Also known as GHSA-58r3-xwfg-7j3x.