D-Link DIR-1935 1.03 Web Management Portal os command injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in D-Link DIR-1935 1.03. Affected by this issue is some unknown functionality of the component Web Management Portal. This manipulation causes os command injection. This vulnerability appears as CVE-2022-43626. The attacker needs to be present on the local network. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in D-Link DIR-1935 1.03 (Router Operating System). Affected by this vulnerability is an unknown functionality of the component Web Management Portal. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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 SetIPv4FirewallSettings requests to the web management portal. When parsing subelements within the IPv4FirewallRule 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-16146.

The weakness was presented 03/30/2023 as ZDI-22-1497. The advisory is shared at zerodayinitiative.com. This vulnerability is known as CVE-2022-43626 since 10/21/2022. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/20/2023). MITRE ATT&CK project uses the attack technique T1202 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Router Operating System

Vendor

• D-Link

Name

• DIR-1935

Version

• 1.03

License

• commercial

Website

• Vendor: https://www.dlink.com/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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Entryinfo

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