An OS command injection vulnerability was discovered in D-Link DSL-3782 v1.01 via the inIP, insPort, inePort, exsPort, exePort, and protocol parameters. This vulnerability allows attackers to execute arbitrary operating system (OS) commands via a crafted packet. With a CVSS score of 8, this high-severity vulnerability presents a significant risk to organizations using affected devices.
The exploitation of this vulnerability can lead to unauthorized access and control over the device, impacting confidentiality, integrity, and availability. Organizations should prioritize patching immediately to mitigate potential risks associated with this vulnerability.
As of now, there are no known exploits or publicly available proof of concepts. However, the potential for exploitation exists, and organizations are urged to monitor their network for any unusual activity that may indicate an attempted attack using this vulnerability.
Given the high impact of this vulnerability, organizations should assess their risk exposure and implement necessary remediation measures as part of their security posture.
Vulnerability Details
The vulnerability, classified as CWE-78, is specific to the D-Link DSL-3782 firmware version 1.01. The official description indicates that the vulnerability allows OS command injection through multiple parameters. The CVSS vector string is CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, with a base score indicating high severity.
Technical Analysis
The root cause of this vulnerability lies in the improper validation of user-supplied input parameters in the D-Link DSL-3782 firmware. Attackers can exploit this by sending specially crafted packets that include malicious commands, which the firmware may inadvertently execute.
The attack vector is defined as adjacent network, requiring low complexity and low privileges for execution. User interaction is not required, making this vulnerability particularly concerning for organizations that may not be aware of the potential for exploitation.
Risk & Impact Analysis
Risk to organizations includes unauthorized command execution, which can lead to full device compromise. The blast radius could encompass any device within the adjacent network, particularly if adequate network segmentation is not employed. Given the high CVSS score, organizations should address in priority patch cycle to mitigate the risks associated with this vulnerability.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected product is D-Link DSL-3782 firmware version 1.01. Organizations using this version should prioritize patching to the latest firmware to mitigate this vulnerability.
Mitigation & Remediation
To remediate this vulnerability, organizations should ensure they upgrade to the latest version of the D-Link DSL-3782 firmware. In addition, organizations should follow best practices for network segmentation and monitor their networks for unusual activities. Implementing configuration hardening can also reduce the risk of exploitation.
Detection Guidance
Organizations should monitor logs for any indicators of compromise related to unauthorized command execution. Behavioral anomalies in device responsiveness or unexpected network traffic patterns may also indicate an attempted exploitation of this vulnerability.
AppSecure Threat Intelligence Insight
The D-Link DSL-3782 vulnerability exemplifies the ongoing risk posed by OS command injection flaws. Organizations must prioritize vulnerability management and continuously assess their security posture to defend against emerging threats. Regular penetration testing, including assessments of network devices, can help identify potential vulnerabilities before they are exploited.
For comprehensive security assessments, organizations may consider engaging in penetration testing to validate their defenses against such vulnerabilities.
Continued awareness and training for security teams can also enhance the organization’s ability to respond to and mitigate risks associated with vulnerabilities like CVE-2025-25893.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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