CVE-2021-46008 : Security Advisory and Response

This CVE pertains to a vulnerability in totolink a3100r V5.9c.4577, where a hard-coded telnet password can be exposed from the official firmware, allowing unauthorized access.

Understanding CVE-2021-46008

In this section, we will delve into the details of CVE-2021-46008.

What is CVE-2021-46008?

CVE-2021-46008 involves the revelation of a hard-coded telnet password from the totolink a3100r V5.9c.4577 official firmware. This vulnerability enables attackers connected to the Wi-Fi to gain root shell access via telnet.

The Impact of CVE-2021-46008

The implications of this vulnerability include unauthorized access to devices using the affected firmware. Attackers can exploit the hard-coded telnet password to compromise the target system.

Technical Details of CVE-2021-46008

Let's explore the technical aspects of CVE-2021-46008.

Vulnerability Description

The vulnerability lies in the exposure of a hard-coded telnet password in totolink a3100r V5.9c.4577 firmware, facilitating unauthorized access to the target system.

Affected Systems and Versions

Product: totolink a3100r V5.9c.4577
Vendor: Not applicable
Versions: Not applicable

Exploitation Mechanism

Attackers connected to the Wi-Fi network can leverage the exposed telnet password to gain root shell access, provided that the telnet function is enabled on the target device.

Mitigation and Prevention

Let's look at the steps to mitigate and prevent the exploitation of CVE-2021-46008.

Immediate Steps to Take

Disable telnet services on the affected device to prevent unauthorized access.
Change default passwords and employ strong, unique credentials.
Regularly monitor network traffic for suspicious activities.

Long-Term Security Practices

Conduct security audits and implement regular firmware updates.
Utilize firewall rules to restrict access to sensitive services.
Educate users on best security practices to prevent unauthorized access.

Patching and Updates

Check for firmware patches or updates from totolink to address the vulnerability.
Apply all available security patches promptly to safeguard against potential exploits.