CVE-2022-24751 Explained : Impact and Mitigation
Learn about CVE-2022-24751, a race condition vulnerability in Zulip group chat application versions >= 4.0, < 4.11. Discover the impact, affected systems, and mitigation steps.
Zulip, an open-source group chat application, is vulnerable to a race condition during account deactivation. Upgrading to a fixed version is crucial to mitigate this issue.
Understanding CVE-2022-24751
This CVE highlights a specific vulnerability in Zulip that could allow continued access by a deactivated user due to a race condition during account deactivation.
What is CVE-2022-24751?
Zulip, starting from version 4.0 and prior to version 4.11, has a vulnerability that could result in a race condition during account deactivation. This may lead to continued access by the user even after deactivation.
The Impact of CVE-2022-24751
The impact of this CVE is rated as MEDIUM with a CVSS base score of 5.4. It has LOW confidentiality and integrity impacts, requires LOW privileges, and has an attack vector over the NETWORK.
Technical Details of CVE-2022-24751
To better understand this CVE, let's dive into its technical details.
Vulnerability Description
A race condition during account deactivation in Zulip, versions from 4.0 to 4.11, may allow continued access to a user being deactivated in certain situations.
Affected Systems and Versions
Zulip versions >= 4.0 and < 4.11 are affected by this vulnerability.
Exploitation Mechanism
The vulnerability arises due to the improper synchronization with shared resources during account deactivation, leading to the race condition.
Mitigation and Prevention
Addressing CVE-2022-24751 is crucial to secure Zulip installations. Here are some recommended steps for mitigation and prevention.
Immediate Steps to Take
Users are advised to upgrade to version 4.11 on the 4.x branch or version 5.0-rc1 on the 5.x branch, where a patch is available to fix this vulnerability.
Long-Term Security Practices
It is essential to stay updated on security patches and implement best practices for secure application usage.
Patching and Updates
Regularly check for updates and apply patches provided by Zulip to ensure the security of your environment.