CVE-2019-10656 Explained : Impact and Mitigation
Learn about CVE-2019-10656 affecting Grandstream GWN7000 devices. Find out how authenticated users can exploit a remote code execution flaw and steps to mitigate the vulnerability.
Grandstream GWN7000 devices prior to version 1.0.6.32 are susceptible to a remote code execution vulnerability that can be exploited by authenticated users. The exploit involves manipulating shell metacharacters within the filename parameter of a specific API call.
Understanding CVE-2019-10656
Devices running Grandstream GWN7000 before version 1.0.6.32 are at risk of a remote code execution exploit.
What is CVE-2019-10656?
This CVE identifies a vulnerability in Grandstream GWN7000 devices that allows authenticated users to execute arbitrary code by exploiting shell metacharacters in a specific API call.
The Impact of CVE-2019-10656
The vulnerability poses a significant risk as it enables attackers to remotely execute malicious code on affected devices, potentially leading to unauthorized access and control.
Technical Details of CVE-2019-10656
Grandstream GWN7000 devices are affected by a critical remote code execution flaw.
Vulnerability Description
The vulnerability arises from improper handling of shell metacharacters in the filename parameter of the /ubus/uci.apply update_nds_webroot_from_tmp API call.
Affected Systems and Versions
- Product: Grandstream GWN7000
- Versions Affected: Prior to 1.0.6.32
Exploitation Mechanism
Attackers with authenticated access can exploit this vulnerability by manipulating shell metacharacters within the filename parameter of the mentioned API call.
Mitigation and Prevention
It is crucial to take immediate action to secure vulnerable systems and prevent exploitation.
Immediate Steps to Take
- Update Grandstream GWN7000 devices to version 1.0.6.32 or later to mitigate the vulnerability.
- Monitor network traffic for any suspicious activities that could indicate an ongoing exploit attempt.
Long-Term Security Practices
- Regularly review and update access controls to limit the impact of potential security breaches.
- Conduct security training for users to raise awareness about safe practices and potential threats.
Patching and Updates
- Stay informed about security advisories and patches released by Grandstream to address known vulnerabilities.