medium
6.8
CWE
78
Advisory Published
Updated
Advisory Published

CVE-2022-43631: D-Link DIR-1935 SetVirtualServerSettings VirtualServerInfo Command Injection Remote Code Execution Vulnerability

First published: Wed Mar 29 2023(Updated: )

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 1.03 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of SetVirtualServerSettings requests to the web management portal. When parsing subelements within the VirtualServerInfo element, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-16151.

Credit: zdi-disclosures@trendmicro.com zdi-disclosures@trendmicro.com

Affected SoftwareAffected VersionHow to fix
D-Link DIR-1935
Dlink Dir-1935 Firmware<=1.02
Dlink Dir-1935 Firmware=1.03-b1
Dlink Dir-1935 Firmware=1.03-b2
Dlink Dir-1935
D-link Dir-1935 Firmware<=1.02
D-link Dir-1935 Firmware=1.03-b1
D-link Dir-1935 Firmware=1.03-b2
D-Link DIR-1935

Remedy

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10310

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID of this issue?

    The vulnerability ID for this issue is CVE-2022-43631.

  • What is the severity level of CVE-2022-43631?

    The severity level of CVE-2022-43631 is medium with a CVSS score of 6.8.

  • What is the affected software for this vulnerability?

    The affected software is D-Link DIR-1935 1.03 routers.

  • How can an attacker exploit CVE-2022-43631?

    An attacker can exploit CVE-2022-43631 by executing arbitrary code on affected installations of D-Link DIR-1935 1.03 routers.

  • Is authentication required to exploit CVE-2022-43631?

    Authentication is required to exploit CVE-2022-43631, but the existing authentication mechanism can be bypassed.

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