CVE-2020-15634 : Exploit Details and Defense Strategies

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700 routers with firmware 1.0.4.84_10.0.58. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of string table file uploads. An attacker can leverage this vulnerability to execute code in the context of the web server.

Understanding CVE-2020-15634

This CVE pertains to a security vulnerability in NETGEAR R6700 routers that allows attackers to execute arbitrary code without authentication.

What is CVE-2020-15634?

CVE-2020-15634 is a vulnerability that enables network-adjacent attackers to run arbitrary code on affected NETGEAR R6700 routers.

The Impact of CVE-2020-15634

The vulnerability poses a medium severity risk, allowing attackers to execute code on the router without the need for authentication.

Technical Details of CVE-2020-15634

This section provides more technical insights into the vulnerability.

Vulnerability Description

The flaw arises from the lack of proper validation of user-supplied strings before using them as format specifiers, specifically in handling string table file uploads.

Affected Systems and Versions

Affected Product: NETGEAR R6700
Affected Version: 1.0.4.84_10.0.58

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Adjacent Network
Privileges Required: None
User Interaction: None
CVSS Score: 6.3 (Medium)

Mitigation and Prevention

Protecting systems from CVE-2020-15634 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the firmware of NETGEAR R6700 routers to the latest version.
Monitor network traffic for any suspicious activities.
Implement network segmentation to limit the impact of potential attacks.

Long-Term Security Practices

Regularly update router firmware to patch known vulnerabilities.
Conduct security audits and penetration testing to identify and address weaknesses.
Educate users on safe browsing habits and the importance of strong passwords.

Patching and Updates

Ensure timely installation of security patches released by NETGEAR to address CVE-2020-15634.