CVE-2019-10659 : Exploit Details and Defense Strategies

Grandstream GXV3370 and WP820 devices are vulnerable to remote code execution by authenticated users through a specific request. This could lead to unauthorized access and misuse of the affected devices.

Understanding CVE-2019-10659

This CVE identifies a vulnerability in Grandstream GXV3370 and WP820 devices that allows remote authenticated users to execute arbitrary code.

What is CVE-2019-10659?

Grandstream GXV3370 devices before version 1.0.1.41 and WP820 devices before version 1.0.3.6 are susceptible to a security flaw that enables remote authenticated users to run malicious code using shell metacharacters in a specific request.

The Impact of CVE-2019-10659

Exploiting this vulnerability can result in unauthorized access to the affected devices, potentially leading to misuse and compromise of sensitive information.

Technical Details of CVE-2019-10659

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The vulnerability in Grandstream GXV3370 and WP820 devices allows remote authenticated users to execute arbitrary code by manipulating the priority field in a specific request (/manager?action=getlogcat).

Affected Systems and Versions

Grandstream GXV3370 devices before version 1.0.1.41
Grandstream WP820 devices before version 1.0.3.6

Exploitation Mechanism

By inserting shell metacharacters in the priority field of the /manager?action=getlogcat request, remote authenticated users can execute arbitrary code on the vulnerable devices.

Mitigation and Prevention

Protecting systems from CVE-2019-10659 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Grandstream GXV3370 devices to version 1.0.1.41 or later.
Update Grandstream WP820 devices to version 1.0.3.6 or later.
Monitor and restrict access to the vulnerable devices.

Long-Term Security Practices

Regularly update and patch all devices and software to prevent known vulnerabilities.
Implement strong authentication mechanisms and access controls to limit unauthorized access.

Patching and Updates

Stay informed about security advisories and patches released by Grandstream for their devices.
Apply security updates promptly to mitigate the risk of exploitation.