CVE-2020-14124 : Exploit Details and Defense Strategies

A buffer overflow vulnerability in librsa.so on Xiaomi Router AX3600 with ROM version < 1.1.12 allows for code execution.

Understanding CVE-2020-14124

This CVE involves a critical buffer overflow issue on Xiaomi Router AX3600, potentially leading to code execution.

What is CVE-2020-14124?

The vulnerability arises in librsa.so when accessed via the getwifipwdurl interface, enabling malicious actors to execute arbitrary code on affected devices.

The Impact of CVE-2020-14124

Exploitation of this vulnerability can result in unauthorized code execution on Xiaomi Router AX3600 devices with ROM version < 1.1.12, posing a significant security risk.

Technical Details of CVE-2020-14124

This section delves into the specifics of the vulnerability.

Vulnerability Description

The buffer overflow in librsa.so triggered by the getwifipwdurl interface allows attackers to execute arbitrary code on the affected Xiaomi Router AX3600 devices.

Affected Systems and Versions

Product: Xiaomi Router AX3600
Versions Affected: Xiaomi Router AX3600 ROM version < 1.1.12

Exploitation Mechanism

The vulnerability can be exploited by leveraging the buffer overflow in librsa.so, accessed through the getwifipwdurl interface, to execute malicious code.

Mitigation and Prevention

Protecting systems from CVE-2020-14124 requires immediate action and long-term security measures.

Immediate Steps to Take

Update Xiaomi Router AX3600 to ROM version 1.1.12 or higher to mitigate the vulnerability.
Monitor network traffic for any suspicious activities that could indicate exploitation.

Long-Term Security Practices

Regularly update firmware and security patches on all network devices.
Implement network segmentation and access controls to limit the attack surface.

Patching and Updates

Apply patches and updates provided by Xiaomi to address the buffer overflow vulnerability in librsa.so.