CVE-2019-7383 : Security Advisory and Response

A vulnerability was identified in Systrome Cumilon ISG-600C, ISG-600H, and ISG-800W devices, allowing shell command injection via inadequate user input validation.

Understanding CVE-2019-7383

What is CVE-2019-7383?

This CVE refers to a vulnerability in the network/isp/isp_update_edit.php file of Systrome Cumilon ISG devices, enabling shell command injection when modifying ISP file descriptions.

The Impact of CVE-2019-7383

The vulnerability allows attackers to execute arbitrary shell commands on affected devices, potentially leading to unauthorized access, data theft, or system compromise.

Technical Details of CVE-2019-7383

Vulnerability Description

The issue arises from insufficient validation of user input in the des parameter of the network/isp/isp_update_edit.php file, facilitating shell command injection.

Affected Systems and Versions

Devices: Systrome Cumilon ISG-600C, ISG-600H, ISG-800W
Firmware: V1.1-R2.1_TRUNK-20181105.bin

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the description of an ISP file, injecting malicious shell commands to gain unauthorized access.

Mitigation and Prevention

Immediate Steps to Take

Apply vendor-supplied patches promptly
Implement network segmentation to limit the impact of potential attacks
Monitor network traffic for any suspicious activity

Long-Term Security Practices

Regularly update firmware and security patches
Conduct security assessments and penetration testing
Educate users on safe computing practices

Patching and Updates

Ensure all affected devices are updated with the latest firmware and security patches to mitigate the risk of exploitation.