D-Link DIR-825AC G1 IGMP Group access control

Summaryinfo

A vulnerability categorized as critical has been discovered in D-Link DIR-825AC G1. Affected by this vulnerability is an unknown functionality of the component IGMP Group Handler. Executing a manipulation can lead to access control. This vulnerability is tracked as CVE-2019-13264. The attack is only possible within the local network. No exploit exists. The application of restrictive firewalling is recommended.

Detailsinfo

A vulnerability classified as critical was found in D-Link DIR-825AC G1 (Router Operating System) (affected version unknown). This vulnerability affects an unknown functionality of the component IGMP Group Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

D-link DIR-825AC G1 devices have Insufficient Compartmentalization between a host network and a guest network that are established by the same device. In order to transfer data from the host network to the guest network, the sender joins and then leaves an IGMP group. After it leaves, the router (following the IGMP protocol) creates an IGMP Membership Query packet with the Group IP and sends it to both the Host and the Guest networks. The data is transferred within the Group IP field, which is completely controlled by the sender.

The weakness was disclosed 08/27/2019. This vulnerability was named CVE-2019-13264 since 07/04/2019. The attack can only be done within the local network. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 12/07/2023). The MITRE ATT&CK project declares the attack technique as T1068.

Proper firewalling of is able to address this issue.

The entries VDB-140933 and VDB-140931 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• D-Link

Name

• DIR-825AC G1

License

• commercial

Website

• Vendor: https://www.dlink.com/

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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