CVE-2019-13264 : Exploit Details and Defense Strategies
Learn about CVE-2019-13264 affecting D-link DIR-825AC G1 devices. Understand the impact, technical details, and mitigation steps for this network compartmentalization vulnerability.
D-link DIR-825AC G1 devices have a vulnerability due to insufficient compartmentalization between the host and guest networks, allowing data transfer between them. The issue arises from the handling of IGMP protocol.
Understanding CVE-2019-13264
This CVE involves a security flaw in D-link DIR-825AC G1 devices that impacts the separation between the host and guest networks.
What is CVE-2019-13264?
The vulnerability in D-link DIR-825AC G1 devices allows data transfer from the host network to the guest network by exploiting the IGMP protocol, compromising network security.
The Impact of CVE-2019-13264
The lack of proper separation between the host and guest networks can lead to unauthorized data access and potential security breaches, posing a risk to sensitive information.
Technical Details of CVE-2019-13264
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The flaw in D-link DIR-825AC G1 devices enables a sender to join and leave an IGMP group, triggering the router to transmit data between the host and guest networks via an IGMP Membership Query packet.
Affected Systems and Versions
- Product: D-link DIR-825AC G1
- Vendor: D-link
- Version: Not applicable
Exploitation Mechanism
The vulnerability allows an attacker to manipulate the IGMP protocol to transfer data between the host and guest networks, breaching network isolation.
Mitigation and Prevention
Protecting systems from CVE-2019-13264 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Disable IGMP snooping on the affected devices to prevent unauthorized data transfer.
- Implement network segmentation to enhance isolation between different network segments.
Long-Term Security Practices
- Regularly update firmware and security patches to address known vulnerabilities.
- Conduct security audits and assessments to identify and mitigate network security risks.
Patching and Updates
- Apply patches and updates provided by D-link to fix the vulnerability and enhance network security.