CVE-2021-20132 : Vulnerability Insights and Analysis
Discover the impact of CVE-2021-20132 affecting Quagga Services on D-Link DIR-2640 routers with versions <= 1.11B02. Learn about the exploitation, affected systems, and mitigation strategies.
A vulnerability has been identified in Quagga Services on D-Link DIR-2640 routers, specifically affecting versions less than or equal to 1.11B02. This CVE allows remote attackers to exploit default hard-coded credentials to gain administrative access to certain services on the router.
Understanding CVE-2021-20132
This section provides an overview of the CVE-2021-20132 vulnerability.
What is CVE-2021-20132?
CVE-2021-20132 involves the use of default hard-coded credentials in Quagga Services on D-Link DIR-2640 routers, enabling unauthorized remote access to certain services.
The Impact of CVE-2021-20132
The impact of this vulnerability is significant as it allows remote attackers to achieve administrative access to crucial services with root privileges on the router.
Technical Details of CVE-2021-20132
Explore the technical aspects of CVE-2021-20132 vulnerability below.
Vulnerability Description
The vulnerability arises from the presence of default hard-coded credentials, enabling attackers to exploit the zebra or ripd services on the affected routers.
Affected Systems and Versions
Quagga Services on D-Link DIR-2640 routers with versions less than or equal to 1.11B02 are vulnerable to this exploit.
Exploitation Mechanism
Remote attackers can leverage the default hard-coded credentials to gain administrative access to the zebra or ripd services running with root privileges on the router.
Mitigation and Prevention
In this section, learn how to mitigate the risks associated with CVE-2021-20132.
Immediate Steps to Take
Immediately change the default credentials on the affected devices and restrict remote access to mitigate the vulnerability.
Long-Term Security Practices
Establish a comprehensive password policy, implement network segmentation, and apply regular security updates to enhance overall network security.
Patching and Updates
Vendor patches and firmware updates should be promptly applied to address the CVE-2021-20132 vulnerability and enhance the security of the affected devices.