CVE-2022-29056 Explained : Impact and Mitigation
Understand the impact of CVE-2022-29056 affecting Fortinet FortiMail versions 6.4.0, 6.2.0 through 6.2.4, and before 6.0.9. Learn about the technical details, mitigation strategies, and immediate steps to secure your system.
A detailed overview of CVE-2022-29056 focusing on the vulnerability, impact, technical details, and mitigation strategies.
Understanding CVE-2022-29056
CVE-2022-29056 is a security vulnerability identified in Fortinet FortiMail affecting several versions of the software.
What is CVE-2022-29056?
The CVE-2022-29056 vulnerability involves an improper restriction of excessive authentication attempts in FortiMail versions 6.4.0, 6.2.0 through 6.2.4, and before 6.0.9. This vulnerability can be exploited by a remote unauthenticated attacker to partially exhaust CPU and memory by sending numerous HTTP requests to the login form.
The Impact of CVE-2022-29056
The impact of this vulnerability is rated as LOW severity according to the CVSS v3.1 metrics. While the attack complexity is high, the availability impact is low, affecting the system's CPU and memory resources.
Technical Details of CVE-2022-29056
A deeper look into the specifics of the vulnerability.
Vulnerability Description
The vulnerability allows remote unauthenticated attackers to cause a denial of service by exhausting CPU and memory through excessive HTTP requests.
Affected Systems and Versions
FortiMail versions 6.4.0, 6.2.0 through 6.2.4, and before 6.0.9 are affected by this vulnerability.
Exploitation Mechanism
Attackers exploit this vulnerability by sending numerous HTTP requests to the login form of the affected FortiMail versions.
Mitigation and Prevention
Measures to mitigate and prevent the exploitation of CVE-2022-29056.
Immediate Steps to Take
- Upgrade to FortiAuthenticator version 6.5.0 or above.
- Upgrade to FortiDeceptor version 3.2.0 or above.
- Upgrade to FortiMail version 6.4.1 or above.
- Upgrade to FortiMail version 6.2.5 or above.
- Upgrade to FortiMail version 6.0.10 or above.
Long-Term Security Practices
Implement robust network security measures, monitor HTTP requests for anomalies, and keep software updated to prevent similar vulnerabilities.
Patching and Updates
Regularly check for security updates from Fortinet and apply patches promptly to ensure protection against known vulnerabilities.