CVE-2023-26255 : What You Need to Know

This CVE record pertains to an unauthenticated path traversal vulnerability found in the "STAGIL Navigation for Jira - Menu & Themes" plugin before version 2.0.52 for Jira. Exploiting this vulnerability allows an attacker to traverse and read the file system by manipulating the fileName parameter to the snjCustomDesignConfig endpoint.

Understanding CVE-2023-26255

This section delves into the details of CVE-2023-26255, shedding light on what it is and the impact it can have.

What is CVE-2023-26255?

CVE-2023-26255 is an unauthenticated path traversal vulnerability that affects the "STAGIL Navigation for Jira - Menu & Themes" plugin before version 2.0.52 for Jira. It enables threat actors to navigate through directories and access files on the file system by tampering with the fileName parameter in the snjCustomDesignConfig endpoint.

The Impact of CVE-2023-26255

The impact of this vulnerability is significant as it allows unauthorized users to read sensitive files on the system. This could lead to exposure of confidential data, compromise system integrity, and potentially result in further exploitation of the affected system.

Technical Details of CVE-2023-26255

In this section, we will discuss the vulnerability description, affected systems and versions, as well as the exploitation mechanism of CVE-2023-26255.

Vulnerability Description

The unauthenticated path traversal vulnerability in the "STAGIL Navigation for Jira - Menu & Themes" plugin allows attackers to bypass authentication and access files on the system by manipulating the fileName parameter in the snjCustomDesignConfig endpoint.

Affected Systems and Versions

The vulnerability impacts versions of the "STAGIL Navigation for Jira - Menu & Themes" plugin that are prior to version 2.0.52 for Jira. Users with these versions are at risk of exploitation if the necessary security measures are not implemented.

Exploitation Mechanism

To exploit CVE-2023-26255, threat actors need to tamper with the fileName parameter in the snjCustomDesignConfig endpoint of the vulnerable plugin. By manipulating this parameter, attackers can traverse the directory structure and access files on the system without authentication.

Mitigation and Prevention

This section provides guidance on mitigating the risks associated with CVE-2023-26255 and preventing potential exploitation.

Immediate Steps to Take

Users should upgrade to version 2.0.52 or newer of the "STAGIL Navigation for Jira - Menu & Themes" plugin to patch the vulnerability.
Until the update is applied, users should monitor for any suspicious activities or file access that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Employ proper access controls and authentication mechanisms to restrict unauthorized access to sensitive files and directories.
Regularly update and patch software components to ensure the latest security fixes are in place to prevent vulnerabilities.

Patching and Updates

Stay informed about security updates released by the plugin vendor and apply patches promptly to mitigate known vulnerabilities.
Consider implementing a robust vulnerability management program to proactively address and remediate security issues in software components.