CVE-2023-46747 represents a critical vulnerability in the F5 BIG-IP Configuration Utility. This vulnerability allows undisclosed requests to bypass authentication, enabling an attacker with network access to the BIG-IP system through the management port and/or self IP addresses to execute arbitrary system commands. The nature of this vulnerability, which has a CVSS score of 9.8, signifies a severe risk to organizations that utilize affected F5 products.
Risk to organizations includes potential unauthorized access to sensitive systems, leading to data breaches, system manipulation, or service disruption. The easy exploitability of this vulnerability heightens the urgency for organizations to implement necessary mitigations swiftly.
The vulnerability was published on October 26, 2023, and is now known to be included in the Known Exploited Vulnerabilities (KEV) catalog, indicating that exploitation is actively being observed in the wild. Organizations utilizing the affected versions of F5 BIG-IP should prioritize remediation efforts immediately.
Immediate action is crucial. Organizations must assess their exposure to this vulnerability and apply patches or necessary mitigations without delay.
Vulnerability Details
The official description of this vulnerability states: 'Undisclosed requests may bypass configuration utility authentication, allowing an attacker with network access to the BIG-IP system through the management port and/or self IP addresses to execute arbitrary system commands.'
This vulnerability has a CVSS score of 9.8, classified as critical, indicating a high level of threat. It affects various components of the F5 BIG-IP product line, including the BIG-IP Access Policy Manager, Advanced Firewall Manager, and several others. The vulnerability is categorized under CWE-288 (Authentication Bypass) and CWE-306 (Missing Authentication for Critical Function).
The vulnerability was disclosed on October 26, 2023. Organizations should reference the vendor's advisory and patch their systems promptly.
Technical Analysis
The root cause of this vulnerability is related to improper authentication controls within the configuration utility of the affected F5 systems. Attackers may exploit this through network access with no required privileges, as the vulnerability allows for remote code execution (RCE) without user interaction. The attack complexity is low, making exploitation straightforward.
In terms of impact, the exploitation of this vulnerability can lead to a complete compromise of the system's confidentiality, integrity, and availability. Given the critical nature of the systems involved, the potential blast radius is significant.
Risk & Impact Analysis
The risk to organizations includes unauthorized access to sensitive configurations and operations, compromising the security posture of entire infrastructures. The potential for data loss, service disruption, and reputational damage is significant. Organizations using affected F5 components should be aware that this vulnerability is actively exploited, as noted by its inclusion in the KEV catalog.
The urgency for remediation is critical, and organizations should prioritize addressing this vulnerability immediately. Without timely action, the risk of exploitation increases significantly.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | Yes |
Affected Versions
The following versions of F5 BIG-IP products are affected by this vulnerability:
1. BIG-IP Access Policy Manager: 13.1.0 - 13.1.5, 14.1.0 - 14.1.5, 15.1.0 - 15.1.10, 16.1.0 - 16.1.4, 17.1.0 - 17.1.1
2. BIG-IP Advanced Firewall Manager: 13.1.0 - 13.1.5, 14.1.0 - 14.1.5, 15.1.0 - 15.1.10, 16.1.0 - 16.1.4, 17.1.0 - 17.1.1
3. Other affected components include BIG-IP Advanced Web Application Firewall, BIG-IP Domain Name System, BIG-IP Application Security Manager, and others, all within the specified version ranges.
Mitigation & Remediation
Organizations must apply patches as soon as they are available to mitigate the risks associated with CVE-2023-46747. If a patch is not available, organizations should discontinue use of the affected product or implement alternative mitigation strategies as advised by the vendor.
For detailed guidance on remediation, organizations can refer to the vendor's advisory. Additionally, consider engaging in continuous security testing to identify and address similar vulnerabilities proactively. Organizations are encouraged to validate remediation effectiveness through continuous penetration testing and configuration hardening.
Detection Guidance
Organizations should monitor for unusual log entries associated with unauthorized access attempts, particularly on management interfaces. Behavioral anomalies, such as unauthorized command executions, should also be flagged. Network signatures should be established to detect potential exploitation attempts targeting the BIG-IP Configuration Utility.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in its ability to facilitate unauthorized access to critical systems. This vulnerability highlights the importance of robust authentication mechanisms and vigilant monitoring practices.
The pattern of exploitation observed in active campaigns underlines the necessity for security teams to be proactive in addressing vulnerabilities. Engaging in a comprehensive penetration testing methodology can help identify similar weaknesses before they can be exploited.
Security teams should focus on understanding the implications of vulnerabilities like CVE-2023-46747 and incorporate learnings into their security posture. Continuous improvement in security practices, along with regular assessments, will aid in reducing risk exposure.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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