CVE-2021-34743

Cisco Webex Software Application Authorization Bypass Vulnerability

Description

A vulnerability in the application integration feature of Cisco Webex Software could allow an unauthenticated, remote attacker to authorize an external application to integrate with and access a user's account without that user's express consent. This vulnerability is due to improper validation of cross-site request forgery (CSRF) tokens. An attacker could exploit this vulnerability by convincing a targeted user who is currently authenticated to Cisco Webex Software to follow a link designed to pass malicious input to the Cisco Webex Software application authorization interface. A successful exploit could allow the attacker to cause Cisco Webex Software to authorize an application on the user's behalf without the express consent of the user, possibly allowing external applications to read data from that user's profile.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.23%
Vendor Advisory cisco.com
Affected: Cisco Cisco Webex Meetings
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-34743?
CVE-2021-34743 has been scored as a medium severity vulnerability.
How to fix CVE-2021-34743?
To fix CVE-2021-34743, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-34743 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-34743 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-34743?
CVE-2021-34743 affects Cisco Cisco Webex Meetings.
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