CVE-2024-46669 is classified as a low-severity vulnerability impacting Fortinet's FortiOS. Specifically, this vulnerability allows an authenticated attacker to exploit an Integer Overflow or Wraparound condition in the IPsec IKE service, particularly in versions 7.4.4 and below, and 7.2.10 and below. The result of such an attack could lead to a denial of service by crashing the IPsec tunnel through crafted requests.
The CVSS score for this vulnerability is 3.5, indicating a low severity level. Despite its low score, organizations should not overlook this vulnerability, as it poses a risk that could disrupt network operations. The potential denial of service is significant enough that it warrants attention in the context of overall organizational security.
Currently, there are no known exploits or public proof-of-concept (PoC) available for CVE-2024-46669, which suggests a lower immediate risk of widespread exploitation. However, the lack of known exploits does not diminish the importance of applying the appropriate patches as part of a proactive security posture.
Organizations using affected versions of FortiOS should prioritize patching to mitigate this vulnerability. As the situation evolves, maintaining an awareness of updates from Fortinet and potential changes in the exploitability of this vulnerability is essential.
Given the nature of the vulnerability and its potential impact on network services, organizations are advised to address this issue in their priority patch cycle.
Vulnerability Details
An Integer Overflow or Wraparound vulnerability [CWE-190] in version 7.4.4 and below, version 7.2.10 and below; FortiSASE version 23.4.b FortiOS tenant IPsec IKE service may allow an authenticated attacker to crash the IPsec tunnel via crafted requests, resulting in potential denial of service.
Technical Analysis
The root cause of CVE-2024-46669 lies in an Integer Overflow or Wraparound issue, which can result from improper handling of input values in the IPsec IKE service. The attack vector is classified as adjacent network, meaning that attackers must have access to the same local network as the targeted device.
The attack complexity is low, and the required privileges for exploitation are also low, meaning that an authenticated user could initiate an attack without significant barriers. Notably, no user interaction is required for the exploitation of this vulnerability.
The impact on availability is rated as low; however, this can lead to significant service disruptions as the IPsec tunnel may become non-operational due to the crash initiated by crafted requests.
Risk & Impact Analysis
Risk to organizations includes potential denial of service, which can disrupt critical business operations. If the IPsec tunnel crashes, communication between network segments relying on this service may be significantly impaired, leading to operational delays and inefficiencies.
The vulnerability's low CVSS score suggests a lower priority for immediate remediation compared to higher-severity vulnerabilities. However, organizations should not dismiss the potential impact on network availability, especially in environments where IPsec tunnels are critical for secure communications.
Organizations should address this vulnerability in their patch cycle, ensuring that devices running affected versions of FortiOS are updated promptly to mitigate the risk of exploitation.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of FortiOS include version 7.4.4 and below, as well as version 7.2.10 and below. Organizations should ensure they are running a patched version to mitigate this vulnerability.
Mitigation & Remediation
Organizations should prioritize applying the latest security patches provided by Fortinet. Given the low severity of this vulnerability, it is recommended to address it during the next patch cycle.
Specific updates can be found in Fortinet's advisories, and organizations should monitor for any further notifications regarding this vulnerability.
In addition to patching, organizations may consider implementing network segmentation to limit the exposure of the affected services. Regular security assessments and penetration testing can help identify potential weaknesses in the network.
For ongoing validation of security measures, organizations should engage in penetration testing to ensure the robustness of their security posture.
Detection Guidance
Organizations should monitor logs for unusual activity related to the IPsec tunnel. Key indicators include unexpected service crashes and anomalies in network traffic patterns that could suggest an attempted exploitation of this vulnerability.
Behavioral anomalies, such as spikes in traffic or unauthorized access attempts, should also be analyzed to detect potential exploitation attempts.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2024-46669 highlights the importance of robust validation mechanisms within network services. As organizations increasingly rely on IPsec tunnels for secure communications, the potential impact of vulnerabilities in these services grows.
This vulnerability serves as a reminder for security teams to regularly audit and update their systems to protect against emerging threats. Continuous improvement of security measures is critical in the face of evolving attack vectors.
Engaging in proactive security measures, such as regular assessments and adopting a penetration testing methodology, can help organizations identify and mitigate vulnerabilities before they can be exploited.
Ultimately, the strategic takeaway is that organizations must remain vigilant and adaptive to maintain robust defenses against potential threats.
For further insights on security trends and vulnerabilities, organizations can refer to our detailed reports on vulnerability management programs and other related topics.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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