D-Link Go-RT-AC750 GORTAC750_revA_v101b03 and GO-RT-AC750_revB_FWv200b02 are vulnerable to a buffer overflow vulnerability that can be exploited via the cgibin and hnap_main interfaces. This critical vulnerability has a CVSS score of 9.8, indicating a severe risk to confidentiality, integrity, and availability. The vulnerability allows attackers to execute arbitrary code, potentially compromising the affected devices and networks.
Risk to organizations includes unauthorized access and control over network devices, leading to data breaches and service disruptions. Given the critical nature of this vulnerability, organizations must prioritize remediation efforts immediately. It is imperative to apply patches and updates provided by the vendor to mitigate the risks associated with this vulnerability.
Currently, there is no confirmed public exploit available for this vulnerability, but its critical nature warrants immediate attention. Organizations should assess their D-Link Go-RT-AC750 devices for the affected firmware versions and take remedial actions as necessary.
Organizations should prioritize patching immediately.
Vulnerability Details
The vulnerability identified as CVE-2022-37055 is a critical buffer overflow issue affecting D-Link Go-RT-AC750 firmware versions GORTAC750_revA_v101b03 and GO-RT-AC750_revB_FWv200b02. The CVSS score for this vulnerability is 9.8, indicating a critical severity level. The vulnerability falls under the CWE-120 classification for buffer errors.
The specific attack vector is network-based, with low complexity and no required privileges or user interaction. This means that an attacker can exploit the vulnerability remotely without needing any authentication. The impacts of this vulnerability are severe, with high confidentiality, integrity, and availability impacts.
Technical Analysis
The root cause of this vulnerability lies in improper handling of buffer management within the firmware, specifically in the cgibin and hnap_main components. Attackers may leverage this oversight to perform operations that should be restricted. The attack complexity is low, making it easy for potential attackers to exploit this vulnerability.
Due to the lack of required privileges and user interaction, the attack can be executed without any special access, further increasing the risk. The implications include potential data exposure, unauthorized modification, and disruption of service.
Risk & Impact Analysis
The deployment of vulnerable D-Link Go-RT-AC750 devices in an organization's network introduces significant risks. Attackers may gain control over these devices, allowing them to intercept traffic, redirect communications, or inject malicious payloads. This could result in a substantial breach of sensitive data and a compromise of network integrity.
With the vulnerability being cataloged in the Known Exploited Vulnerabilities (KEV) database, the urgency to address this flaw is heightened. Organizations should assess the potential blast radius and prioritize remediation efforts according to the critical nature of this vulnerability as indicated by its CVSS score.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The affected versions of the D-Link Go-RT-AC750 firmware include GORTAC750_revA_v101b03 and GO-RT-AC750_revB_FWv200b02. Organizations should ensure they are running the latest firmware versions provided by the vendor to mitigate the risk associated with this vulnerability.
Mitigation & Remediation
Organizations must apply the vendor's patches and follow the recommended mitigation steps. If the firmware update is unavailable, organizations should consider discontinuing the use of affected products or implementing network controls to limit exposure. Regular monitoring for unusual behavior and security audits are also recommended.
To validate the effectiveness of remediation, organizations should engage in penetration testing that exercises the patched code path.
Detection Guidance
Monitor logs for unusual access patterns, particularly around the cgibin and hnap_main interfaces. Behavioral anomalies such as unexpected reboots or unusual traffic patterns may indicate exploitation attempts.
AppSecure Threat Intelligence Insight
This vulnerability exemplifies the ongoing risks associated with network devices. It highlights the importance of timely updates and rigorous security practices. The trend of buffer overflow vulnerabilities remains prevalent, necessitating a proactive approach to security.
Security teams should also consider adopting a penetration testing methodology to address similar vulnerabilities in the future.
Moreover, organizations should focus on building a comprehensive vulnerability management program to ensure ongoing risk mitigation.
By prioritizing these strategies, organizations can better defend against the threats posed by vulnerabilities such as CVE-2022-37055.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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