CVE-2019-10631 Explained : Impact and Mitigation

An authenticated attacker can exploit the Shell Metacharacter Injection vulnerability in the package installer found on Zyxel NAS 326 version 5.21 and earlier. This allows them to run arbitrary code by making various requests.

Understanding CVE-2019-10631

This CVE involves a Shell Metacharacter Injection vulnerability in Zyxel NAS 326 version 5.21 and below, enabling authenticated attackers to execute arbitrary code.

What is CVE-2019-10631?

CVE-2019-10631 is a security vulnerability that allows authenticated attackers to exploit the package installer on Zyxel NAS 326 version 5.21 and earlier through Shell Metacharacter Injection, leading to the execution of arbitrary code.

The Impact of CVE-2019-10631

The exploitation of this vulnerability can result in attackers running arbitrary code on the affected system, potentially leading to unauthorized access, data theft, or further compromise of the NAS device.

Technical Details of CVE-2019-10631

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability lies in the package installer on Zyxel NAS 326 version 5.21 and earlier, allowing authenticated attackers to perform Shell Metacharacter Injection and execute arbitrary code.

Affected Systems and Versions

Affected System: Zyxel NAS 326
Affected Versions: 5.21 and earlier

Exploitation Mechanism

The vulnerability can be exploited by authenticated attackers through the package installer on the affected Zyxel NAS 326 devices, enabling them to execute arbitrary code by sending various requests.

Mitigation and Prevention

Protecting systems from CVE-2019-10631 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Zyxel NAS 326 to a patched version that addresses the Shell Metacharacter Injection vulnerability.
Monitor system logs for any suspicious activities that could indicate exploitation attempts.

Long-Term Security Practices

Implement strong authentication mechanisms to prevent unauthorized access to NAS devices.
Regularly audit and update software to patch known vulnerabilities and enhance overall security.

Patching and Updates

Apply security patches provided by Zyxel promptly to mitigate the CVE-2019-10631 vulnerability and enhance the security posture of the NAS device.