CVE-2021-27179 : Exploit Details and Defense Strategies

A telnet daemon crashing vulnerability was discovered on FiberHome HG6245D devices through RP2613, allowing attackers to exploit the telnet daemon by sending a specific string.

Understanding CVE-2021-27179

This section provides insights into the nature and impact of the CVE-2021-27179 vulnerability.

What is CVE-2021-27179?

CVE-2021-27179 is a security flaw found on FiberHome HG6245D devices through RP2613 that enables attackers to crash the telnet daemon using a specific string.

The Impact of CVE-2021-27179

The vulnerability in CVE-2021-27179 can be exploited by malicious actors to disrupt the telnet daemon, potentially leading to service interruptions or unauthorized access.

Technical Details of CVE-2021-27179

This section dives into the technical specifics of the CVE-2021-27179 vulnerability.

Vulnerability Description

The flaw allows for the crash of the telnet daemon on FiberHome HG6245D devices through RP2613 by sending a particular string.

Affected Systems and Versions

The issue affects FiberHome HG6245D devices through RP2613, with specific details on impacted versions.

Exploitation Mechanism

Attackers exploit CVE-2021-27179 by sending a crafted string to the telnet daemon, triggering a crash.

Mitigation and Prevention

Discover how to address and mitigate the risks associated with CVE-2021-27179 in this section.

Immediate Steps to Take

Immediate actions include monitoring the network for suspicious activity and restricting access to vulnerable telnet services.

Long-Term Security Practices

Implementing strict security protocols, conducting regular assessments, and educating users on cybersecurity best practices can enhance long-term security.

Patching and Updates

Regularly applying security patches and updates provided by the vendor is crucial to remediate vulnerabilities and enhance system security.