CVE-2023-45847 : Vulnerability Insights and Analysis
Learn about CVE-2023-45847, a vulnerability in Mattermost that allows attackers to crash the Playbooks plugin. Find mitigation steps and update information here.
This article discusses a vulnerability identified as CVE-2023-45847 in Mattermost that could allow an attacker to crash the Playbooks plugin by sending a specially crafted request.
Understanding CVE-2023-45847
This section provides detailed insights into the vulnerability, its impact, technical details, and mitigation strategies.
What is CVE-2023-45847?
The CVE-2023-45847 vulnerability in Mattermost arises from a failure to check the length when setting the title in a run checklist in Playbooks. This oversight could be exploited by an attacker to send a malicious request and cause the Playbooks plugin to crash.
The Impact of CVE-2023-45847
The impact of this vulnerability is rated as medium severity, with a CVSS v3.1 base score of 4.3. While the attack complexity is low, it could lead to the unavailability of the Playbooks plugin in affected systems.
Technical Details of CVE-2023-45847
This section outlines specific technical information about the vulnerability.
Vulnerability Description
Mattermost fails to check the length when setting the title in a run checklist in Playbooks, enabling an attacker to destabilize the Playbooks plugin through a crafted request.
Affected Systems and Versions
The versions of Mattermost affected by CVE-2023-45847 include 8.1.5, 9.0.3, 9.1.2, and 9.2.1, with later versions being unaffected.
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating the title length in a run checklist in Playbooks, triggering a crash in the plugin.
Mitigation and Prevention
This section offers guidance on mitigating the risks associated with CVE-2023-45847.
Immediate Steps to Take
Users are advised to update their Mattermost Server to versions 8.1.6, 9.0.4, 9.1.3, 9.2.2, or higher to safeguard against the vulnerability.
Long-Term Security Practices
Implementing secure coding practices and regularly updating software can enhance the overall security posture of systems.
Patching and Updates
Maintaining up-to-date software patches and monitoring security advisories from Mattermost can help prevent future vulnerabilities.