CVE-2023-41679 is a high-severity vulnerability affecting Fortinet's FortiManager management interface. This vulnerability allows an improper access control exploit that can be leveraged by authenticated users with specific permissions. The CVSS score of 8.5 indicates a serious risk, and the vulnerability affects multiple versions of FortiManager: 7.2.0 through 7.2.2, 7.0.0 through 7.0.7, 6.4.0 through 6.4.11, and all versions of 6.2 and 6.0.
Organizations utilizing FortiManager should be particularly vigilant, as this vulnerability permits a remote authenticated attacker to add and delete CLI scripts not only within their own ADOM but across other ADOMs as well. This capability can lead to significant unauthorized modifications and potential system disruptions.
The urgency of addressing this vulnerability cannot be overstated. Given the risk to organizational integrity and the potential for exploitation, organizations should prioritize patching immediately. The attack vector is network-based, which means that the threat landscape is broad, allowing attackers to exploit this vulnerability remotely.
Currently, there are no known public exploits associated with this vulnerability. However, the high CVSS score reflects the critical nature of the issue. Immediate remediation is essential to mitigate risks and protect organizational assets.
Vulnerability Details
The FortiManager management interface has been identified as having an improper access control vulnerability, classified under CWE-284. This vulnerability enables users with at least device management permissions to manipulate CLI scripts across different ADOMs, significantly increasing the risk of unauthorized access and control over management functions.
The CVSS score of 8.5 indicates a high severity level, with a base severity classification of high due to its potential impacts on confidentiality, integrity, and availability. Organizations are urged to review their affected systems, which include FortiManager versions 7.2.0 to 7.2.2, 7.0.0 to 7.0.7, 6.4.0 to 6.4.11, along with all versions of 6.2 and 6.0. The vulnerability was published on October 10, 2023.
Technical Analysis
The root cause of CVE-2023-41679 lies in improper access controls within the FortiManager management interface. The attack vector is network-based, with a high attack complexity rating. Attackers need low privileges to exploit this vulnerability, and no user interaction is required, making it particularly dangerous.
The vulnerability's impacts include high confidentiality, integrity, and availability risks, allowing attackers to potentially manipulate system configurations and access sensitive information, thereby compromising overall security.
Risk & Impact Analysis
Risk to organizations includes unauthorized access to critical management functions and the ability to modify CLI scripts across multiple ADOMs. The blast radius of this vulnerability can be significant, affecting multiple systems within an organization's network. Given the high CVSS score and the potential for exploitation, organizations must assess their risk posture and take immediate action.
Organizations should prioritize patching this vulnerability in their systems. The assessment indicates that the vulnerability is not yet included in the KEV catalog, but the potential impact on operations makes it critical to address as part of the patch management lifecycle.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The following versions of FortiManager are affected by this vulnerability: 7.2.0 through 7.2.2, 7.0.0 through 7.0.7, 6.4.0 through 6.4.11, and all versions of 6.2 and 6.0. It is recommended that organizations review their systems to ensure they have the necessary patches applied.
Mitigation & Remediation
Organizations should prioritize patching to versions that address this vulnerability. Regular updates and monitoring of configurations are vital to ensure that no unauthorized CLI scripts are added or deleted. Additionally, implementing robust access controls and monitoring can help mitigate the risks associated with improper access control vulnerabilities.
For more comprehensive security assessments, organizations can consider engaging in penetration testing to identify and remediate potential vulnerabilities.
Detection Guidance
Organizations should monitor logs for indicators of unauthorized access or changes to CLI scripts. This includes looking for unusual patterns in user activity, especially from those with device management permissions. Additionally, monitoring network traffic for unusual requests to FortiManager can help detect potential exploitation attempts.
AppSecure Threat Intelligence Insight
The significance of CVE-2023-41679 lies in its implications for access control mechanisms in management interfaces. This vulnerability highlights the need for organizations to enforce strict access controls and regularly review permissions assigned to users.
Security teams should be aware of the patterns that lead to improper access controls and ensure that their systems are configured to prevent such vulnerabilities. Investing in comprehensive security testing and remediation efforts is crucial to maintain a robust security posture.
For deeper insights on vulnerability management, organizations might explore resources on vulnerability management programs and best practices in penetration testing methodologies to strengthen their defenses.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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