CVE-2021-3967 : Vulnerability Insights and Analysis
Learn about CVE-2021-3967, an Improper Access Control vulnerability in zulip/zulip that impacts versions prior to 4.10. Discover the impact, affected systems, and mitigation steps to secure your systems.
A detailed overview of the CVE-2021-3967 highlighting the impact, technical details, and mitigation steps.
Understanding CVE-2021-3967
This section provides insights into the vulnerability, its impact, and affected systems.
What is CVE-2021-3967?
The CVE-2021-3967 involves an Improper Access Control issue in the GitHub repository of zulip/zulip before version 4.10.
The Impact of CVE-2021-3967
The vulnerability is considered medium severity with a base score of 4.1 according to CVSS 3.0 metrics. It requires high privileges for exploitation and can lead to low confidentiality, integrity, and availability impact.
Technical Details of CVE-2021-3967
In-depth technical information on the vulnerability
Vulnerability Description
The vulnerability arises due to improper access control in the zulip/zulip GitHub repository prior to version 4.10.
Affected Systems and Versions
The affected product is zulip/zulip with versions less than 4.10.
Exploitation Mechanism
The vulnerability has a high attack complexity and can be exploited via a network without requiring user interaction.
Mitigation and Prevention
Preventative measures to address and mitigate the CVE-2021-3967 vulnerability.
Immediate Steps to Take
Users should update their zulip/zulip version to 4.10 or above to eliminate the vulnerability. Additionally, restrict high privileges to mitigate exploitation.
Long-Term Security Practices
Regularly monitor and update software, implement least privilege access, and conduct security audits to prevent similar vulnerabilities.
Patching and Updates
Stay informed about security patches released by the vendor and apply them promptly to safeguard against potential risks.