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CVE-2022-48113 : Security Advisory and Response

Learn about CVE-2022-48113, a security flaw in TOTOLINK N200RE_v5 firmware allowing unauthorized access to telnet service and potential root login. Explore impact, technical details, and mitigation steps.

A vulnerability in TOTOLINK N200RE_v5 firmware V9.3.5u.6139 allows unauthenticated attackers to access the telnet service via a crafted POST request. Attackers can also exploit this vulnerability to login as root using hardcoded credentials.

Understanding CVE-2022-48113

This section provides insights into the nature of CVE-2022-48113.

What is CVE-2022-48113?

CVE-2022-48113 is a security vulnerability in TOTOLINK N200RE_v5 firmware that enables unauthorized access to the telnet service through a specific POST request. It further allows attackers to gain root privileges by utilizing hardcoded credentials.

The Impact of CVE-2022-48113

The impact of this vulnerability includes the unauthorized access to sensitive systems and potential privilege escalation, putting the affected devices at risk of compromise.

Technical Details of CVE-2022-48113

Explore a deeper understanding of the technical aspects related to CVE-2022-48113.

Vulnerability Description

The vulnerability in TOTOLINK N200RE_v5 firmware V9.3.5u.6139 permits unauthenticated individuals to exploit the telnet service and potentially obtain root access through hardcoded credentials.

Affected Systems and Versions

The security flaw affects TOTOLINK N200RE_v5 firmware version V9.3.5u.6139.

Exploitation Mechanism

Attackers can leverage a crafted POST request to access the telnet service without authentication and utilize hardcoded credentials to log in as root.

Mitigation and Prevention

Discover effective strategies to mitigate the risks posed by CVE-2022-48113.

Immediate Steps to Take

Users should disable telnet services when not in use and regularly monitor for any unauthorized access attempts.

Long-Term Security Practices

Implement robust password policies, conduct security audits regularly, and keep firmware up to date to enhance overall system security.

Patching and Updates

Ensure that TOTOLINK N200RE_v5 firmware is updated to a secure version that addresses the vulnerability.

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