CVE-2019-3422 : Vulnerability Insights and Analysis

In October 2019, ZTE PSIRT was informed by Sec Consult Security Lab about an information disclosure vulnerability in the MF910S product, potentially leading to sensitive data leakage.

Understanding CVE-2019-3422

The vulnerability in the ZTE MF910S product allows for the extraction of Telnet remote login password, enabling unauthorized access to the device.

What is CVE-2019-3422?

The MF910S product's one-click upgrade tool can extract the Telnet remote login password in a reverse manner, allowing attackers to gain remote access and potentially leak sensitive information.

The Impact of CVE-2019-3422

Exploiting this vulnerability could lead to unauthorized access to the device and the potential leakage of sensitive information stored on it.

Technical Details of CVE-2019-3422

The following technical details provide insight into the vulnerability and its implications:

Vulnerability Description

The vulnerability allows for the extraction of the Telnet remote login password.

Affected Systems and Versions

Product: MF910S
Vendor: ZTE
Version: DL_MF910S_CN_EUV1.00.01.exe

Exploitation Mechanism

Attackers can exploit the cracked password to gain remote access to the device, potentially leading to the leakage of sensitive information.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigate the risks associated with CVE-2019-3422.

Immediate Steps to Take

Disable Telnet if not required to prevent unauthorized access.
Consider upgrading to newer ZTE products for enhanced security.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities.

Patching and Updates

ZTE recommends users to opt for newer product alternatives to ensure better security.