CVE-2023-36633 : Security Advisory and Response
Understand CVE-2023-36633, an improper authorization vulnerability in FortiMail webmail versions, impacting data confidentiality. Learn about the impact, mitigation steps, and recommended solutions.
A detailed overview of CVE-2023-36633 highlighting the vulnerability, impact, technical details, and mitigation steps.
Understanding CVE-2023-36633
CVE-2023-36633 is an improper authorization vulnerability in FortiMail webmail versions 7.2.0 through 7.2.2 and before 7.0.5. An authenticated attacker can view and modify the title of address book folders of other users.
What is CVE-2023-36633?
CVE-2023-36633 is classified as an improper authorization vulnerability (CWE-285) that leads to information disclosure in FortiMail webmail versions.
The Impact of CVE-2023-36633
The vulnerability allows attackers to potentially access and manipulate the title of address book folders belonging to other users, compromising data confidentiality and integrity.
Technical Details of CVE-2023-36633
This section dives deeper into the vulnerability description, affected systems, and the exploitation mechanism.
Vulnerability Description
The vulnerability in FortiMail webmail versions 7.2.0 through 7.2.2 and before 7.0.5 enables authenticated attackers to view and alter the title of address book folders of different users through crafted HTTP/HTTPs requests.
Affected Systems and Versions
FortiMail versions 7.2.0 to 7.2.2, 7.0.0 to 7.0.5, 6.4.0 to 6.4.8, 6.2.0 to 6.2.9, and 6.0.0 to 6.0.12 are impacted by this vulnerability.
Exploitation Mechanism
Attackers with authenticated access can exploit this vulnerability via specially crafted HTTP or HTTPs requests to gain unauthorized access to address book folders.
Mitigation and Prevention
Discover immediate steps to take, long-term security practices, and the importance of patching and updates.
Immediate Steps to Take
Users are advised to upgrade to FortiMail version 7.4.0 or above, 7.2.3 or above, and 7.0.6 or above to mitigate the vulnerability promptly.
Long-Term Security Practices
Implement access controls, user permissions, and regular security audits to prevent unauthorized system access and data modifications.
Patching and Updates
Regularly monitor for security patches and updates from Fortinet to address vulnerabilities promptly and ensure system security.