CVE-2021-34743 : Security Advisory and Response
Discover how CVE-2021-34743 in Cisco Webex Software enables remote attackers to access user accounts without consent, due to CSRF vulnerabilities. Learn how to mitigate this risk.
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 the 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 user's consent, possibly enabling external applications to read data from the user's profile.
Understanding CVE-2021-34743
This section provides insights into the impact and technical details of CVE-2021-34743.
What is CVE-2021-34743?
The vulnerability in Cisco Webex Software allows an unauthorized attacker to integrate external applications with a user's account without explicit consent, exploiting CSRF token validation issues.
The Impact of CVE-2021-34743
The vulnerability poses a medium severity risk, providing attackers the potential to access user data without proper authorization.
Technical Details of CVE-2021-34743
Explore the specific technical aspects of the CVE-2021-34743 vulnerability.
Vulnerability Description
The flaw arises from inadequate validation of CSRF tokens, enabling attackers to trick users into unintentionally authorizing external applications.
Affected Systems and Versions
Cisco Webex Software is affected by this vulnerability, impacting all versions.
Exploitation Mechanism
Attackers can exploit the vulnerability by manipulating CSRF tokens through user interaction.
Mitigation and Prevention
Learn how to protect your system from CVE-2021-34743.
Immediate Steps to Take
Users are advised to remain cautious while following external links and monitor account activity for unusual behavior.
Long-Term Security Practices
Implement robust user authentication protocols and conduct regular security audits to prevent unauthorized access.
Patching and Updates
Ensure that Cisco Webex Software is updated to the latest version to mitigate the vulnerability.