CVE-2023-36637 : Vulnerability Insights and Analysis
Learn about CVE-2023-36637 affecting FortiMail versions 7.2.0 to 7.2.2 and steps to upgrade to prevent HTML injection in calendar fields. Low severity with CVSS 3.1 base score 3.4.
A security vulnerability, assigned CVE-2023-36637, has been identified in FortiMail versions 7.2.0 through 7.2.2 and before 7.0.5. This vulnerability allows an authenticated attacker to inject HTML tags into FortiMail's calendar via input fields.
Understanding CVE-2023-36637
This section delves into the details of the CVE-2023-36637 vulnerability.
What is CVE-2023-36637?
The CVE-2023-36637 vulnerability involves an improper neutralization of input during web page generation in FortiMail software. Specifically, an attacker could exploit this flaw to inject HTML tags into FortiMail's calendar through input fields.
The Impact of CVE-2023-36637
The impact of this vulnerability is rated as low, with a CVSS v3.1 base score of 3.4. While the attack complexity is low and user interaction is required, an authenticated attacker could execute unauthorized code or commands, potentially compromising the integrity of the system.
Technical Details of CVE-2023-36637
This section outlines the technical aspects of the CVE-2023-36637 vulnerability.
Vulnerability Description
The vulnerability arises due to improper input neutralization during web page generation in FortiMail. This allows attackers to inject malicious HTML tags into the calendar feature through input fields.
Affected Systems and Versions
FortiMail versions 7.2.0 through 7.2.2 and versions before 7.0.5 are affected by this vulnerability.
Exploitation Mechanism
An authenticated attacker can exploit this vulnerability by injecting HTML tags into FortiMail's calendar via input fields.
Mitigation and Prevention
To address and prevent potential exploitation of CVE-2023-36637, the following steps are recommended:
Immediate Steps to Take
It is advised to upgrade to FortiMail version 7.4.0 or above, version 7.2.3 or above, or version 7.0.6 or above to mitigate the risk associated with this vulnerability.
Long-Term Security Practices
In addition to immediate upgrades, organizations should adopt a proactive security stance, including regular system patching, security monitoring, and user awareness training.
Patching and Updates
Regularly check for and apply security patches provided by Fortinet to ensure systems are protected against known vulnerabilities.