CVE-2023-28461 is a critical vulnerability affecting Array Networks AG Series and vxAG appliances, specifically versions 9.4.0.481 and earlier. This vulnerability allows remote code execution, enabling attackers to browse the filesystem on the SSL VPN gateway using a flags attribute in an HTTP header without authentication. The potential for exploitation via a vulnerable URL raises significant security concerns for affected organizations.
With a CVSS score of 9.8, this vulnerability is classified as critical, indicating severe implications for confidentiality, integrity, and availability. The urgency for organizations to address this vulnerability is underscored by its high potential for exploitation, particularly in network environments.
On March 9, 2023, the vendor issued an advisory noting that a new release to address this vulnerability would be available soon. Organizations utilizing affected products should prioritize patching immediately to mitigate risks associated with this vulnerability and prevent unauthorized access.
The risk to organizations includes potential data breaches, unauthorized access to sensitive information, and disruption of services. Security teams should be vigilant in monitoring for indicators of compromise related to this vulnerability and ensure they are prepared to apply the necessary patches once available.
Vulnerability Details
The official description of CVE-2023-28461 states that it allows remote code execution on Array Networks AG Series and vxAG (9.4.0.481 and earlier). The vulnerability type is classified under CWE-287, which pertains to missing authentication for critical functions. The CVSS score of 9.8 reflects the high severity of this vulnerability, which poses threats to confidentiality, integrity, and availability.
Affected products include the ArrayOS AG series, with the vendor being Array Networks. The vulnerability was published on March 15, 2023, and is currently under analysis, with a vendor patch anticipated soon.
Technical Analysis
The root cause of this vulnerability stems from inadequate authentication mechanisms that allow unauthorized access to critical functions within the affected products. Attackers can leverage this weakness to execute arbitrary code remotely, potentially compromising the entire system.
The attack vector is classified as network-based, with low complexity, meaning that attackers do not require advanced skills to exploit this vulnerability. Privileges required are none, and no user interaction is necessary, further increasing the risk. The impacts on confidentiality, integrity, and availability are all classified as high, indicating a severe threat to the affected systems.
Risk & Impact Analysis
Real-world deployment risk associated with CVE-2023-28461 is significant. Organizations using affected versions of Array Networks products face potential exploitation, leading to unauthorized access and data breaches. The vulnerability's critical nature necessitates immediate attention from security teams.
The urgency assessment based on the CVSS score and the known exploitation status highlights the need for organizations to prioritize remediation. Given the high likelihood of exploitation, organizations should address this vulnerability in their critical patch cycle.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | Yes |
Affected Versions
All versions prior to vendor patch are affected, specifically versions 9.4.0.481 and earlier of the Array Networks AG and vxAG products. Organizations should confirm their version and apply patches as soon as they are available.
Mitigation & Remediation
Organizations must apply the patches provided by the vendor as soon as they are available. If a patch cannot be applied, organizations should consider implementing workarounds as suggested in the vendor advisory. Proper configuration hardening and network controls are also essential to mitigate the impact of this vulnerability.
For continuous security validation, organizations should engage in continuous penetration testing to ensure that no similar vulnerabilities exist.
Detection Guidance
Monitoring logs for unusual access attempts or unauthorized file access can help detect exploitation attempts. Behavioral anomalies in network traffic related to SSL VPN gateways should be scrutinized, and organizations should maintain awareness of any changes in system configurations.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2023-28461 lies in the potential for widespread exploitation in network environments, particularly for organizations relying on Array Networks products. This vulnerability represents a critical reminder of the importance of secure authentication practices.
Security teams should learn from this incident to enhance their defensive strategies in the face of emerging vulnerabilities. For further insights, organizations can explore our guide on penetration testing methodology and the importance of proactive security measures.
Additionally, organizations can benefit from our resources on vulnerability management programs and API security best practices to strengthen their overall security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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