CVE-2023-6199 : Exploit Details and Defense Strategies

This CVE-2023-6199 informational article sheds light on a security vulnerability found in Book Stack version 23.10.2, exposing it to filtering local files on the server due to a vulnerability to SSRF.

Understanding CVE-2023-6199

CVE-2023-6199 highlights a specific weakness in Book Stack version 23.10.2, allowing threat actors to filter local files on the server by exploiting a Server-Side Request Forgery (SSRF) vulnerability.

What is CVE-2023-6199?

CVE-2023-6199, also known as "Book Stack v23.10.2 - LFR via Blind SSRF," refers to a flaw in Book Stack version 23.10.2 that enables malicious actors to manipulate input data, particularly by leveraging SSRF techniques.

The Impact of CVE-2023-6199

The impact of CVE-2023-6199 is rated as high severity, with a CVSS v3.1 base score of 7.1. The confidentiality impact is deemed high, while the integrity impact is low. The vulnerability's attack complexity is low, and it can be exploited over a network without the need for user interaction.

Technical Details of CVE-2023-6199

The technical details of CVE-2023-6199 outline the vulnerability, affected systems, and how the exploit can be carried out.

Vulnerability Description

Book Stack version 23.10.2 is susceptible to filtering local files on the server due to a vulnerability in SSRF, allowing threat actors to manipulate input data.

Affected Systems and Versions

The affected system is Book Stack version 23.10.2. Users utilizing this specific version are at risk of falling victim to local file filtering through SSRF exploitation.

Exploitation Mechanism

The exploitation mechanism of CVE-2023-6199 involves taking advantage of the SSRF vulnerability present in Book Stack version 23.10.2 to filter and manipulate local files on the server.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-6199, users and organizations are advised to take immediate action and implement long-term security measures to safeguard their systems.

Immediate Steps to Take

Immediate steps to mitigate the vulnerability include updating to a secure version of Book Stack beyond 23.10.2, implementing restrictions on server-side requests, and monitoring for suspicious activities.

Long-Term Security Practices

In the long term, organizations should prioritize security best practices such as regular security audits, employee training on identifying SSRF vulnerabilities, and keeping software up to date to prevent similar incidents.

Patching and Updates

Patching and updating the affected system to a non-vulnerable version, performing regular security updates, and staying informed about potential vulnerabilities can help prevent exploitation of SSRF in Book Stack version 23.10.2.