CVE-2023-25804 : Exploit Details and Defense Strategies

This CVE involves a vulnerability in Roxy-WI, a web interface used for managing Haproxy, Nginx, Apache, and Keepalived servers. The vulnerability allows for limited path traversal in the name parameter, potentially leading to the saving of SSH keys in unintended locations.

Understanding CVE-2023-25804

This section will delve into the specifics of CVE-2023-25804, including the vulnerability description, impact, affected systems and versions, exploitation mechanism, and mitigation steps.

What is CVE-2023-25804?

The vulnerability identified in CVE-2023-25804 pertains to Roxy-WI versions prior to 6.3.5.0, where a limited path traversal flaw existed. Attackers could exploit this vulnerability to save SSH keys in unintended locations by manipulating the name parameter with a specific payload.

The Impact of CVE-2023-25804

The impact of CVE-2023-25804 is rated as high severity due to the potential for unauthorized exposure of sensitive SSH keys. This could lead to confidentiality breaches as attackers could access and potentially misuse these keys.

Technical Details of CVE-2023-25804

In this section, we will explore the vulnerability description, the affected systems and versions, as well as the exploitation mechanism associated with CVE-2023-25804.

Vulnerability Description

The vulnerability in Roxy-WI allowed for improper limitation of a pathname to a restricted directory (path traversal). By manipulating the name parameter with a specific payload, attackers could save SSH keys in unintended locations, potentially compromising the security of the system.

Affected Systems and Versions

The versions of Roxy-WI affected by CVE-2023-25804 are those prior to version 6.3.5.0. Specifically, versions lower than 6.3.5.0 are vulnerable to this limited path traversal flaw.

Exploitation Mechanism

Attackers could exploit this vulnerability by injecting a payload such as

../../../../../tmp/test111_dev

into the name parameter. This payload manipulation allowed for the saving of SSH keys in locations like the

/tmp

directory, which was not the intended storage location for these keys.

Mitigation and Prevention

To address CVE-2023-25804 and prevent potential exploitation, it is crucial to take immediate steps and implement long-term security practices to safeguard systems.

Immediate Steps to Take

Update Roxy-WI to version 6.3.5.0 or later to apply the necessary security patches that address the limited path traversal vulnerability.
Monitor system logs and activities for any suspicious behavior that may indicate an attempted exploit of this vulnerability.

Long-Term Security Practices

Regularly conduct security assessments and vulnerability scans on web interfaces and applications to identify and address any potential weaknesses.
Educate system administrators and users on best practices for secure configuration and usage of web interfaces to mitigate risks effectively.

Patching and Updates

Regularly monitor vendor updates and security advisories for Roxy-WI to stay informed about the latest patches and security enhancements. Applying updates promptly can help mitigate the risk of exploitation associated with known vulnerabilities like CVE-2023-25804.