CVE-2023-29827 : Vulnerability Insights and Analysis

A detailed overview of the CVE-2023-29827 vulnerability in ejs v3.1.9 and its implications.

Understanding CVE-2023-29827

This section provides insights into the nature and impact of the CVE-2023-29827 vulnerability.

What is CVE-2023-29827?

The CVE-2023-29827 vulnerability affects ejs v3.1.9 and involves server-side template injection. Attackers can exploit this vulnerability through the configuration settings of the closeDelimiter parameter in ejs files. It is worth noting that the vendor disputes this claim, stating that the render function is not meant for untrusted input.

The Impact of CVE-2023-29827

The impact of this vulnerability includes the potential for threat actors to execute code on the server, leading to data breaches, unauthorized access, and other malicious activities.

Technical Details of CVE-2023-29827

In this section, we delve into the technical aspects of CVE-2023-29827.

Vulnerability Description

The vulnerability arises due to improper input validation in the closeDelimiter parameter of ejs v3.1.9, allowing unauthorized code execution.

Affected Systems and Versions

All versions of ejs v3.1.9 are affected by this vulnerability, posing a risk to systems utilizing this specific version.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the closeDelimiter configuration in ejs files, enabling malicious code execution.

Mitigation and Prevention

Explore the necessary steps to prevent and mitigate the CVE-2023-29827 vulnerability.

Immediate Steps to Take

It is recommended to update ejs to a patched version or switch to an alternative template engine to mitigate the risk of exploitation.

Long-Term Security Practices

Implement secure coding practices, input validation mechanisms, and regular security audits to fortify your systems against similar vulnerabilities.

Patching and Updates

Stay informed about security updates from ejs and promptly apply patches to address known vulnerabilities.