The D-Link DIR-645 Wired/Wireless Router Rev. Ax with firmware 1.04b12 and earlier allows remote attackers to execute arbitrary commands via a GetDeviceSettings action to the HNAP interface. This vulnerability allows attackers to potentially gain control over the device, leading to significant risks.
With a CVSS score of 8.8, this high-severity vulnerability indicates a serious threat to endpoint security. The attack vector is adjacent network, requiring minimal effort for an attacker to exploit, making it imperative for organizations to take immediate action.
Risk to organizations includes unauthorized access and complete control over the affected devices, which can lead to further network compromises. Given that the vulnerability is in a widely used consumer router, the potential impact is broad.
As this vulnerability has been included in the Known Exploited Vulnerabilities (KEV) catalog, organizations should prioritize patching immediately to mitigate risks associated with its exploitation.
The impacted product is end-of-life and should be disconnected if still in use, highlighting the urgency for organizations to evaluate their network devices.
Vulnerability Details
The official CVE description states that the D-Link DIR-645 Wired/Wireless Router Rev. Ax with firmware 1.04b12 and earlier allows remote attackers to execute arbitrary commands via a GetDeviceSettings action to the HNAP interface. This vulnerability type is classified under CWE-77 (Command Injection).
The vulnerability has a CVSS score of 8.8, indicating a high severity level. The attack vector is adjacent network, with low attack complexity, no privileges required, and no user interaction needed. The impacts on confidentiality, integrity, and availability are all rated as high.
This vulnerability was published on February 23, 2015, and has been analyzed for its potential risks and impacts. Organizations utilizing the D-Link DIR-645 should take immediate action to address this critical vulnerability.
Technical Analysis
The root cause of this vulnerability lies in the HNAP interface of the D-Link DIR-645 router, where inadequate input validation allows for command injection. Attackers can exploit this flaw by sending specially crafted requests to the device.
The attack vector is adjacent network, meaning that the attacker must be on the same local network as the target. The attack complexity is low, as no special conditions or privileges are required to exploit the vulnerability. Additionally, no user interaction is necessary, making this attack straightforward.
The consequences of a successful attack include high impacts on confidentiality, integrity, and availability, as attackers may execute arbitrary commands, leading to the compromise of sensitive information or disruption of services.
Risk & Impact Analysis
Real-world deployment of the D-Link DIR-645 router presents significant risks due to its exposure to potential attackers. The ability to execute arbitrary commands poses a direct threat to network security, as attackers could leverage this to further infiltrate organizational networks.
The blast radius of this vulnerability is substantial, especially in environments where multiple devices are connected to a single router. Organizations should assess their networks to determine the extent of exposure and potential impact.
Given the high severity of this vulnerability, organizations must prioritize remediation efforts based on the CVSS score and KEV entry. Immediate actions should include patching or replacing affected devices to minimize risk.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The affected version for this vulnerability is the D-Link DIR-645 firmware 1.04b12 and earlier. All versions prior to vendor patch should be considered vulnerable.
Mitigation & Remediation
Organizations should prioritize patching immediately. The impacted product is end-of-life and should be disconnected if still in use. For those who cannot disconnect, upgrading to the latest firmware version is recommended.
Additionally, organizations should implement network controls to limit access to the router and monitor for any suspicious activity. Regular security assessments and penetration testing can help identify similar vulnerabilities in the network.
For further guidance, organizations may wish to explore options for penetration testing to ensure comprehensive security coverage.
Detection Guidance
Organizations should monitor logs for indicators of compromise related to the HNAP interface of the D-Link DIR-645 router. Look for unusual patterns of access or failed login attempts, which may indicate attempts to exploit this vulnerability.
Behavioral anomalies in network traffic should also be investigated, especially if they correlate with known exploit patterns for this vulnerability.
AppSecure Threat Intelligence Insight
This vulnerability highlights a critical issue in consumer-grade networking devices, often overlooked in security assessments. The trend of increasing vulnerabilities in IoT and networking hardware underscores the need for robust security postures.
Organizations must take proactive measures to ensure that all network devices are updated and monitored. Regular penetration testing methodologies can help identify weaknesses in network security.
Additionally, teams should consider reviewing their incident response plans in light of this vulnerability to ensure they are prepared for potential exploitation attempts.
For further reading on securing network devices, organizations can refer to the vulnerability management program to design comprehensive strategies.
As the landscape of vulnerabilities evolves, staying informed and adaptive is crucial for maintaining organizational security.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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