CVE-2020-27873 : Security Advisory and Response

This vulnerability affects NETGEAR R7450 routers, allowing network-adjacent attackers to disclose sensitive information without authentication.

Understanding CVE-2020-27873

This CVE identifies a security flaw in NETGEAR R7450 routers that can be exploited by attackers to access sensitive data.

What is CVE-2020-27873?

The vulnerability permits network-adjacent attackers to reveal confidential information on affected NETGEAR R7450 1.2.0.62_1.0.1 routers without needing authentication.
The issue stems from a lack of proper access control within the SOAP API endpoint on TCP port 80.
Exploiting this flaw can lead to the exposure of stored credentials, potentially resulting in further system compromise.

The Impact of CVE-2020-27873

CVSS Base Score: 6.5 (Medium Severity)
Confidentiality Impact: High
Attack Vector: Adjacent Network
Privileges Required: None
User Interaction: None
This vulnerability does not directly impact system integrity or availability but poses a significant risk to data confidentiality.

Technical Details of CVE-2020-27873

This section delves into the specific technical aspects of the CVE.

Vulnerability Description

The vulnerability is categorized as CWE-284: Improper Access Control.
It allows unauthorized disclosure of sensitive information on NETGEAR R7450 routers.

Affected Systems and Versions

Affected Product: NETGEAR R7450
Affected Version: 1.2.0.62_1.0.1

Exploitation Mechanism

Attackers exploit the lack of access control in the SOAP API endpoint on TCP port 80 to access confidential data.

Mitigation and Prevention

Protecting systems from CVE-2020-27873 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable remote management if not required.
Regularly monitor network traffic for any suspicious activity.
Apply vendor-supplied patches promptly.

Long-Term Security Practices

Implement strong password policies.
Conduct regular security audits and assessments.
Educate users on safe browsing habits and phishing awareness.

Patching and Updates

NETGEAR has released security advisories and patches to address this vulnerability.