CVE-2023-27380 : What You Need to Know

This CVE record pertains to an OS command injection vulnerability identified in the admin.cgi USSD_send functionality of Peplink Surf SOHO HW1 version 6.3.5 (in QEMU), which can result in command execution when a specially crafted HTTP request is made.

Understanding CVE-2023-27380

This section delves into the details of CVE-2023-27380, including the vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2023-27380?

CVE-2023-27380 is classified as a CWE-78 vulnerability, which involves improper neutralization of special elements used in an OS command, leading to OS command injection. This vulnerability specifically affects the Peplink Surf SOHO HW1 v6.3.5 (in QEMU) product.

The Impact of CVE-2023-27380

The impact of this vulnerability is rated as high, with a CVSS v3.1 base score of 7.2. It can be exploited by an attacker to execute arbitrary commands through a specially crafted HTTP request, potentially compromising the confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2023-27380

This section provides a more in-depth look into the technical aspects of CVE-2023-27380, including the vulnerability description, affected systems, versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises from a flaw in the admin.cgi USSD_send functionality of Peplink Surf SOHO HW1 version 6.3.5 (in QEMU), allowing for the execution of unauthorized operating system commands via specially crafted HTTP requests.

Affected Systems and Versions

Peplink Surf SOHO HW1 version 6.3.5 (in QEMU) is confirmed to be affected by this vulnerability, potentially impacting devices running this specific version.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending authenticated HTTP requests with malicious payloads, enabling them to execute arbitrary commands on the target system.

Mitigation and Prevention

In response to CVE-2023-27380, it is crucial for users and administrators to take immediate steps to mitigate the risk posed by this vulnerability and implement long-term security practices to enhance system resilience.

Immediate Steps to Take

Users are advised to apply security patches and updates provided by Peplink to fix the vulnerability. Additionally, restricting network access to vulnerable systems and monitoring for suspicious activities can help prevent exploitation.

Long-Term Security Practices

To bolster overall system security, implementing network segmentation, access controls, regular security audits, and employee awareness training on cybersecurity best practices is recommended to fortify defenses against potential threats.

Patching and Updates

Peplink users should regularly check for security advisories and updates from the vendor to apply patches addressing CVE-2023-27380. Prompt patching is essential to mitigate the risk of exploitation and secure the system against potential attacks.