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CVE-2023-47464: High Vulnerability in GL.iNet AX1800 Firmware

High-severity insecure permissions vulnerability in GL.iNet AX1800 firmware allows remote code execution via the upload API. Immediate patching is essential to mitigate risks.

HIGHPublic ExploitCVSS 8.8 · Published November 30, 2023

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CVE-2023-47464 is a high-severity vulnerability affecting GL.iNet AX1800 firmware versions prior to 4.5.0. This vulnerability allows remote attackers to execute arbitrary code through an insecure upload API function. Organizations utilizing this firmware must recognize the severity of this issue, as it poses significant risks to their systems.

With a CVSS score of 8.8, the vulnerability is classified as high, indicating that it can be exploited with relatively low complexity and minimal privileges required. The attack vector is network-based, which further heightens the urgency for organizations to address this vulnerability.

The real-world implications of this vulnerability are significant. Attackers may leverage this flaw to gain unauthorized access, potentially leading to data breaches or service interruptions. As such, organizations should prioritize patching immediately to safeguard their environments.

As of now, public exploit availability has been confirmed, underscoring the need for swift action. Organizations should remain vigilant and apply necessary updates to mitigate any potential exploitation.

Vulnerability Details

The insecure permissions vulnerability in GL.iNet AX1800 allows remote attackers to execute arbitrary code via the upload API function. This issue affects versions 4.0.0 through 4.4.9. The CVSS score of 8.8 indicates a high severity level, reflecting its potential impact on confidentiality, integrity, and availability.

This vulnerability is classified under CWE-22, which pertains to improper limitation of a pathname to a restricted directory (path traversal). The potential for exploitation makes it critical for organizations to understand the risks associated with unpatched systems.

Published on November 30, 2023, this vulnerability has been modified since its disclosure. The ongoing threat landscape necessitates prompt attention to such vulnerabilities, especially in networked environments.

Technical Analysis

The root cause of CVE-2023-47464 lies in insecure permissions that allow the execution of arbitrary code. The attack vector is network-based, and the attack complexity is low, requiring only minimal privileges. Importantly, user interaction is not required, making this vulnerability particularly concerning.

In terms of impact, the vulnerability can lead to high confidentiality, integrity, and availability impacts. Organizations that rely on this firmware should evaluate their exposure and take immediate action to remediate.

Risk & Impact Analysis

The real-world deployment risk for CVE-2023-47464 is substantial. Given the ease of exploitation, attackers may exploit this vulnerability to gain unauthorized access to sensitive systems, potentially leading to significant data loss or operational disruption.

Organizations should consider the blast radius of this vulnerability, especially if the affected firmware is deployed widely within their infrastructure. The urgency for remediation is underscored by the high CVSS score and potential for exploitation.

As the threat landscape evolves, organizations must remain proactive in their security posture, ensuring timely updates and patches are applied. The current CVSS metrics indicate that this is a high-priority issue that warrants immediate attention.

Exploitation Status

Signal

Status

Known Exploit

Yes

Public PoC

Yes

Actively Exploited

No

Ransomware Use

No

Affected Versions

The affected versions of GL.iNet AX1800 firmware include all versions from 4.0.0 up to (but not including) 4.5.0. Organizations using these versions should prioritize upgrading to the latest release that addresses this vulnerability.

Mitigation & Remediation

Organizations must apply patches or upgrades to GL.iNet AX1800 firmware to version 4.5.0 or later. If immediate patching is not feasible, implementing strict network controls and monitoring can help mitigate risks in the interim.

To validate the effectiveness of the remediation, organizations should engage in penetration testing to ensure that the vulnerability is effectively mitigated.

Detection Guidance

Organizations should monitor logs for unusual API activity, particularly around the upload function. Behavioral anomalies, such as unexpected file uploads, should be flagged for further investigation. Additionally, network signatures associated with exploit attempts should be identified and monitored.

AppSecure Threat Intelligence Insight

The long-term significance of CVE-2023-47464 highlights the necessity for organizations to adopt robust security postures. The pattern of exploiting insecure permissions via APIs is a recurring theme in the threat landscape, emphasizing the need for stringent access controls and regular security assessments.

Security teams should proactively address similar vulnerabilities by implementing secure coding practices and conducting regular vulnerability assessments. For more insights, refer to our guide on penetration testing methodology and the importance of secure API design.

Lastly, as the cybersecurity landscape evolves, organizations should stay informed about emerging threats and trends. Engaging in ongoing security training and awareness programs can significantly enhance an organization's defensive capabilities.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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