CVE-2023-28390 : What You Need to Know

This CVE-2023-28390 details a privilege escalation vulnerability found in the SR-7100VN firmware versions 1.38(N) and earlier, as well as SR-7100VN #31 firmware version 1.21 and earlier. The vulnerability allows a network-adjacent attacker with administrative privilege on the affected product to obtain administrative privilege of the OS (Operating System), potentially leading to the execution of arbitrary OS commands.

Understanding CVE-2023-28390

This section delves deeper into the specifics of CVE-2023-28390, outlining the vulnerability's impact and technical details.

What is CVE-2023-28390?

CVE-2023-28390 is a privilege escalation vulnerability that affects the SR-7100VN firmware versions 1.38(N) and earlier, as well as SR-7100VN #31 firmware version 1.21 and earlier. It allows a network-adjacent attacker with administrative privileges to gain control over the Operating System with administrative privileges.

The Impact of CVE-2023-28390

The impact of this vulnerability is significant as it grants attackers the ability to execute arbitrary OS commands, potentially leading to unauthorized access, data breaches, and system compromise.

Technical Details of CVE-2023-28390

In this section, we explore the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in SR-7100VN firmware versions allows a network-adjacent attacker with administrative privileges to escalate their access level to the Operating System, enabling the execution of unauthorized OS commands.

Affected Systems and Versions

The affected product in this CVE is the SR-7100VN by ICOM INCORPORATED. Specifically, the vulnerable versions include SR-7100VN firmware Ver.1.38(N) and earlier, as well as SR-7100VN #31 firmware Ver.1.21 and earlier.

Exploitation Mechanism

Attackers with administrative privilege on the network can exploit this vulnerability to gain administrative privilege over the Operating System, opening doors for executing malicious commands.

Mitigation and Prevention

To address CVE-2023-28390, immediate steps should be taken to mitigate the risk and prevent potential exploitation. Long-term security practices and the importance of patching and updates are crucial in enhancing system security.

Immediate Steps to Take

Owners of affected devices should restrict network access to privileged users, monitor network traffic for suspicious activities, and implement firewall rules to limit unauthorized access.

Long-Term Security Practices

Implementing the principle of least privilege, conducting regular security audits, and providing comprehensive security training to employees can enhance overall security posture and prevent similar vulnerabilities in the future.

Patching and Updates

ICOM INCORPORATED should release patches or updates to address the privilege escalation vulnerability in the affected SR-7100VN firmware versions. All users should promptly apply these patches to secure their systems against potential exploitation.