CVE-2021-42886 Explained : Impact and Mitigation

TOTOLINK EX1200T V4.1.2cu.5215 contains an information disclosure vulnerability allowing unauthorized access to the apmib configuration file, potentially exposing usernames and passwords.

Understanding CVE-2021-42886

What is CVE-2021-42886?

TOTOLINK EX1200T V4.1.2cu.5215 is affected by an information disclosure vulnerability. Attackers can retrieve the apmib configuration file without proper authorization, potentially revealing sensitive login credentials.

The Impact of CVE-2021-42886

The vulnerability enables threat actors to access sensitive information such as usernames and passwords stored in the decoded configuration file, leading to unauthorized access and potential data breaches.

Technical Details of CVE-2021-42886

Vulnerability Description

The vulnerability in TOTOLINK EX1200T V4.1.2cu.5215 allows attackers to retrieve the apmib configuration file without authorization, exposing sensitive data.

Affected Systems and Versions

Product: TOTOLINK EX1200T V4.1.2cu.5215
Vendor: TOTOLINK
Version: V4.1.2cu.5215

Exploitation Mechanism

Attackers can exploit this vulnerability to access the apmib configuration file, where usernames and passwords are stored in plaintext, allowing unauthorized access.

Mitigation and Prevention

Immediate Steps to Take

Immediately update the firmware version to the latest available release from TOTOLINK.
Regularly review access logs for any unauthorized activity.
Consider changing all passwords associated with the affected device.

Long-Term Security Practices

Implement strong password policies and encourage the use of multi-factor authentication.
Conduct regular security audits and vulnerability assessments on network devices.
Educate users on cybersecurity best practices to prevent unauthorized access.

Patching and Updates

Stay informed about security updates and patches released by TOTOLINK.
Apply patches promptly to mitigate known vulnerabilities and enhance system security.