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CVE-2025-25895: High Vulnerability in D-Link DSL-3782 Firmware

A high-severity OS command injection vulnerability exists in D-Link DSL-3782 firmware version 1.01. Attackers can exploit this vulnerability to execute arbitrary OS commands. Organizations must address this vulnerability urgently to protect their systems.

HIGHCVSS 8 · Published February 18, 2025

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An OS command injection vulnerability was discovered in D-Link DSL-3782 v1.01 via the public_type parameter. This vulnerability allows attackers to execute arbitrary operating system (OS) commands via a crafted packet. With a CVSS score of 8, classified as high severity, this vulnerability presents a significant risk to organizations using this device.

The exploitation of this vulnerability poses serious risks, including unauthorized access to sensitive data and potential disruption of service. Attackers may leverage this vulnerability to gain control over the device, leading to broader network vulnerabilities.

Organizations should prioritize patching immediately. The vulnerability has not been confirmed to have a public exploit, but its nature demands that security teams take proactive measures.

Given the high severity of this vulnerability, it is crucial for organizations to assess their exposure and implement necessary mitigations swiftly.

Vulnerability Details

The OS command injection vulnerability in D-Link DSL-3782 v1.01 is classified under CWE-78. The CVSS 3.1 score of 8 indicates a high level of risk, with an attack vector of adjacent network, low attack complexity, and low privileges required for exploitation. The vulnerability was published on February 18, 2025.

Technical Analysis

The root cause of this vulnerability lies in insufficient input validation, allowing crafted packets to inject OS commands. The attack vector is primarily through devices on the same adjacent network, requiring low complexity and low privileges. User interaction is not required, making it easier for attackers to exploit the vulnerability. The impacts include high confidentiality, integrity, and availability risks.

Risk & Impact Analysis

The potential blast radius for this vulnerability is significant, impacting any organization utilizing D-Link DSL-3782 firmware. The risk is amplified due to the nature of OS command injection and the ability of attackers to execute arbitrary commands. Given the CVSS score and the potential for active exploitation, organizations must assess their network exposure and implement mitigations urgently.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

All versions prior to vendor patch. Specifically affected is D-Link DSL-3782 firmware version 1.01.

Mitigation & Remediation

Organizations should prioritize patching immediately. Update to the latest firmware version provided by D-Link to remediate this vulnerability. If a patch is not available, consider implementing network segmentation to limit exposure and monitor traffic for unusual behavior. For effective security posture, organizations may also assess their systems using penetration testing to identify similar weaknesses.

Detection Guidance

Monitor logs for indications of unauthorized OS command execution. Look for network traffic anomalies associated with the D-Link DSL-3782 device. Implement behavioral analytics to detect unauthorized changes or commands.

AppSecure Threat Intelligence Insight

The discovery of this OS command injection vulnerability highlights ongoing risks associated with network devices. Organizations must remain vigilant and proactive in their security measures. Patterns in OS command injection attacks indicate a trend toward exploiting device vulnerabilities for lateral movement within networks. Security teams are encouraged to review their security frameworks and consider adopting best practices for penetration testing methodologies to enhance their defenses. Additionally, continuous monitoring and assessment of networked devices can significantly reduce exposure to similar vulnerabilities.

Consider reviewing the latest trends in vulnerability management and security measures by referencing our vulnerability management program to better equip your organization against emerging threats.

Lastly, organizations should engage in regular security assessments and consider utilizing services such as application security assessments to identify and remediate vulnerabilities before they can be exploited.

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

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