An issue was discovered on D-Link DCS-2530L before 1.06.01 Hotfix and DCS-2670L through 2.02 devices. The vulnerability in question allows authenticated command injection via the cgi-bin/ddns_enc.cgi interface. This vulnerability is classified as high severity due to its potential impact on device security.
With a CVSS score of 8.8, the risk to organizations includes possible unauthorized access and manipulation of device functionalities by attackers. The command injection vulnerability is particularly concerning as it may allow attackers to execute arbitrary commands on the affected devices.
Currently, there is no known public exploit, but organizations using affected D-Link devices should treat this vulnerability with high urgency. Organizations should prioritize patching immediately to secure their devices and protect their networks.
The vulnerability was published on September 2, 2020, and has been positively identified in the Known Exploited Vulnerabilities (KEV) catalog. This indicates a recognized risk that necessitates swift action from organizations.
Vulnerability Details
The command injection vulnerability allows attackers to execute arbitrary commands on the D-Link DCS-2530L and DCS-2670L devices through the cgi-bin/ddns_enc.cgi interface. The affected firmware versions are prior to 1.06.01 Hotfix for the DCS-2530L and up to 2.02 for the DCS-2670L.
The vulnerability is classified under CWE-77, which pertains to command injection vulnerabilities. The CVSS 3.1 score indicates a high severity level, with the following characteristics:
Metrics | Value |
|---|---|
CVSS Score | 8.8 |
Attack Vector | NETWORK |
Attack Complexity | LOW |
Privileges Required | LOW |
User Interaction | NONE |
Confidentiality Impact | HIGH |
Integrity Impact | HIGH |
Availability Impact | HIGH |
Technical Analysis
The root cause of this vulnerability stems from insufficient input validation in the cgi-bin/ddns_enc.cgi script, which allows attackers to inject and execute commands on the underlying operating system.
The attack vector for this vulnerability is network-based, which means an attacker must be able to reach the device over the network. The attack complexity is low, suggesting that exploitation can be achieved with minimal effort. Privileges required to exploit this vulnerability are low, as authenticated users can execute arbitrary commands without further escalation.
User interaction is not required for this attack, further increasing the risk. If exploited, the vulnerability results in high impacts on confidentiality, integrity, and availability, providing attackers with the capability to manipulate data and disrupt services.
Risk & Impact Analysis
Organizations utilizing D-Link DCS-2530L and DCS-2670L devices face significant risks due to this vulnerability. The potential for unauthorized command execution poses a threat to the integrity of the devices and the networks they are connected to.
The blast radius of this vulnerability is concerning, as it may allow attackers to compromise multiple devices within the same network, leading to broader network intrusions and data breaches. Given the high severity rating and the presence in the KEV catalog, organizations should prioritize immediate remediation efforts.
The urgency for addressing this vulnerability is critical, as the potential impacts are extensive. Organizations should not only focus on applying patches but also consider implementing additional security measures, such as network segmentation and continuous monitoring, to mitigate the risks associated with this vulnerability.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
Affected versions include:
D-Link DCS-2530L firmware versions prior to 1.06.01 Hotfix and DCS-2670L firmware versions up to 2.02. Additionally, other firmware versions of D-Link devices such as DCS-4603, DCS-4622, DCS-4701E, DCS-4703E, DCS-4705E, DCS-4802E, and DCS-P703 are also susceptible.
Mitigation & Remediation
D-Link has issued a patch for this vulnerability. Organizations should apply the necessary updates to their devices. If the patch is not available, the vendor advises users to discontinue product utilization. For further guidance, apply mitigations per vendor instructions, and follow applicable BOD 22-01 guidance for cloud services.
Organizations may also consider conducting a security assessment to identify and remediate other potential vulnerabilities. Implementing network segmentation can help contain any potential intrusions until a patch is applied.
Ultimately, organizations should prioritize continuous improvement and adaptation of their security measures to stay ahead of emerging threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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