CVE-2024-26013 is identified as a high-severity vulnerability with a CVSS score of 7.5, affecting various Fortinet products, including FortiOS, FortiProxy, FortiManager, FortiAnalyzer, FortiVoice, and FortiWeb. This vulnerability allows for an improper restriction of communication channel to intended endpoints, leading to a potential man-in-the-middle attack. Organizations utilizing affected Fortinet products are at risk of unauthorized access and exploitation by attackers.
The severity of this vulnerability is underscored by its potential impact on confidentiality, integrity, and availability, which can all be compromised. Attackers may leverage this vulnerability by intercepting FGFM authentication requests, thereby impersonating management devices such as FortiCloud servers. Given the nature of this vulnerability, organizations should prioritize patching immediately.
Currently, there are no known exploits or public proof-of-concept code available, but the high exploitability rating indicates that it is essential for organizations to address this vulnerability in their patch management cycle. Fortinet has provided details regarding the affected versions and necessary patches, which should be closely monitored.
Given the critical nature of the vulnerability, organizations using affected Fortinet products should take immediate action to mitigate risks associated with CVE-2024-26013.
Vulnerability Details
CVE-2024-26013 is classified under CWE-923, indicating an improper restriction of communication channels. The vulnerability affects Fortinet FortiOS versions 7.4.0 through 7.4.4, 7.2.0 through 7.2.8, 7.0.0 through 7.0.15, 6.4.0 through 6.4.15, and all versions before 6.2.16. Additionally, FortiProxy, FortiManager, FortiAnalyzer, FortiVoice, and FortiWeb are also impacted across specific version ranges.
The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H, highlighting a network attack vector with high complexity, no privileges required, and user interaction needed. The potential impacts include high risk to confidentiality, integrity, and availability.
Organizations must track the publication date of this vulnerability as April 8, 2025, and review the necessary updates provided by Fortinet to ensure all systems are adequately protected.
Technical Analysis
The root cause of CVE-2024-26013 stems from improper restrictions in the communication channels of affected Fortinet products. This flaw allows attackers to intercept authentication requests, thereby potentially impersonating management devices. The attack vector is categorized as network-based, indicating that the attack can be executed remotely without physical access to devices.
The complexity of the attack is rated as high, requiring specific conditions to be met for successful exploitation, including user interaction. However, once these conditions are satisfied, an attacker can achieve significant impacts on the confidentiality, integrity, and availability of the systems.
Risk & Impact Analysis
Risk to organizations includes the potential for unauthorized access to sensitive information and disruption of services due to the exploitation of this vulnerability. The possible blast radius is extensive, affecting multiple Fortinet products and their integrations within broader network infrastructures.
Given the CVSS score of 7.5, organizations should address this vulnerability as part of their priority patch cycle. Effective risk management strategies must include immediate updates to mitigate the risks associated with CVE-2024-26013.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects the following versions of Fortinet products: FortiOS versions 7.4.0 through 7.4.4, 7.2.0 through 7.2.8, 7.0.0 through 7.0.15, 6.4.0 through 6.4.15, and all versions before 6.2.16; FortiProxy versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.9, and before 7.0.15; FortiManager versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.14, and before 6.2.13; FortiAnalyzer versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.14, and before 6.2.13; FortiVoice versions 7.0.0 through 7.0.2 before 6.4.8; and FortiWeb versions before 7.4.2.
Mitigation & Remediation
Organizations should ensure that they are running the latest versions of Fortinet products. It is crucial to apply the patches provided by Fortinet for affected products immediately to mitigate any risks associated with CVE-2024-26013. If an immediate patch is unavailable, organizations can implement workarounds such as restricting access to management interfaces and monitoring authentication requests for anomalies.
For continuous protection, organizations are encouraged to engage in continuous security testing to identify vulnerabilities and ensure the security of their systems.
Detection Guidance
Organizations should monitor logs for unusual authentication attempts, particularly those targeting management interfaces. Behavioral anomalies, such as unexpected requests from unrecognized IP addresses, should be investigated promptly. Additionally, network signatures should be updated to detect potential exploitation attempts.
AppSecure Threat Intelligence Insight
The emergence of CVE-2024-26013 highlights the ongoing challenges organizations face in securing network devices from man-in-the-middle attacks. It serves as a reminder of the importance of robust security practices and regular updates to stay ahead of potential threats. The vulnerability also represents a trend where attackers increasingly target misconfigurations and flaws in device management protocols.
Organizations should consider reviewing their security posture comprehensively and adapting to evolving threats in the cybersecurity landscape. Engaging in penetration testing services can provide valuable insights into vulnerabilities and help strengthen defenses.
Finally, organizations should not overlook the importance of establishing a proactive security culture that prioritizes continuous learning and adaptation to new security challenges.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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