CVE-2020-25078 is a high-severity vulnerability that affects D-Link DCS-2530L and DCS-2670L devices. This vulnerability allows for unauthorized access to the administrator password through the unauthenticated /config/getuser endpoint. The CVSS score for this vulnerability is 7.5, indicating a significant potential impact on confidentiality as attackers can disclose sensitive information.
Risk to organizations includes unauthorized access to administrative controls, which can severely compromise device security and network integrity. Given the nature of this vulnerability, it is crucial for organizations to address it in their patching cycle. The vulnerability has been confirmed to have an exploit available, making it imperative for users to take action.
Organizations should prioritize patching immediately. The vendor has released a hotfix for the DCS-2530L version before 1.06.01 and DCS-2670L versions through 2.02. Users should ensure that their devices are updated to the latest firmware version to mitigate this risk.
The vulnerability was published on September 2, 2020, and has been analyzed thoroughly. As part of the Known Exploited Vulnerabilities (KEV) catalog, it has been highlighted as a critical risk that needs immediate attention from affected organizations.
Vulnerability Details
An issue was discovered on D-Link DCS-2530L before 1.06.01 Hotfix and DCS-2670L through 2.02 devices. The unauthenticated /config/getuser endpoint allows for remote administrator password disclosure.
The vulnerability type is classified as high severity due to its potential for exploitation in network environments. The CVSS score of 7.5 indicates a high risk, with a low attack complexity and no required privileges for exploitation.
Affected products include various D-Link firmware versions, particularly the DCS-2530L and DCS-2670L devices. The publication date of the CVE was September 2, 2020.
Technical Analysis
The root cause of CVE-2020-25078 lies in the improper handling of unauthenticated requests to the /config/getuser endpoint, which allows attackers to retrieve sensitive information, such as administrator passwords. The attack vector is network-based, which means that an attacker can exploit this vulnerability remotely without physical access to the device.
The attack complexity is low, as no special conditions are required to exploit this vulnerability. Furthermore, there is no need for user interaction, making it a straightforward attack vector for potential threats. The confidentiality impact is high due to the sensitive nature of the information that can be disclosed, while integrity and availability impacts are minimal.
Risk & Impact Analysis
Organizations deploying D-Link DCS-2530L and DCS-2670L devices face considerable risks due to this vulnerability. The potential for unauthorized password disclosure could lead to further exploitation, including unauthorized access to other network resources. This vulnerability not only affects the device itself but also poses a broader risk to the entire network infrastructure.
The urgency for remediation is critical. Given the high CVSS score, organizations should prioritize this vulnerability in their patch management processes. Failure to address this issue could lead to significant security breaches and data loss.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The affected versions of the firmware include D-Link DCS-2530L before 1.06.01 Hotfix and DCS-2670L through 2.02. Users must ensure they upgrade to the latest firmware version to mitigate this vulnerability.
Mitigation & Remediation
Organizations should apply the vendor's patch immediately to remediate this vulnerability. The latest firmware updates are essential for ensuring device security. If a patch is not available, users should consider discontinuing the use of the affected devices. Additionally, implementing network controls and monitoring can help detect any unauthorized access attempts.
For further guidance, organizations can refer to the vendor advisory available through D-Link Technical Support.
Detection Guidance
To detect potential exploitation of CVE-2020-25078, organizations should monitor logs for any unauthorized access attempts to the /config/getuser endpoint. Behavioral anomalies in device management interfaces may also indicate attempted exploits.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2020-25078 highlights the importance of secure coding practices and regular patching of firmware in IoT devices. Organizations should be aware of similar vulnerabilities that may arise in their environments.
As this vulnerability demonstrates, the blast radius can extend beyond the affected devices, impacting overall network security. Security teams should learn from these incidents and prioritize regular vulnerability assessments and penetration testing to identify weaknesses.
For more insights, consider exploring our resources on vulnerability management programs and our comprehensive penetration testing methodology to enhance your 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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