CVE-2021-35290 : What You Need to Know

A detailed overview of the File Upload vulnerability in balerocms-src 0.8.3 that allows remote attackers to run arbitrary code via a rich text editor.

Understanding CVE-2021-35290

This section will cover the vulnerability, impact, technical details, and mitigation strategies related to CVE-2021-35290.

What is CVE-2021-35290?

The CVE-2021-35290 refers to a File Upload vulnerability in balerocms-src 0.8.3, enabling remote attackers to execute arbitrary code using a rich text editor on the /admin/main/mod-blog page.

The Impact of CVE-2021-35290

The impact of this vulnerability is severe as it allows unauthorized users to execute malicious code on the affected system, potentially leading to data breaches, unauthorized access, and system compromise.

Technical Details of CVE-2021-35290

This section will delve into the specifics of the vulnerability, affected systems, and how attackers exploit it.

Vulnerability Description

The vulnerability in balerocms-src 0.8.3 allows attackers to upload malicious files using the rich text editor on the /admin/main/mod-blog page, granting them the ability to run arbitrary code on the system.

Affected Systems and Versions

All versions of balerocms-src 0.8.3 are affected by this vulnerability, putting any system running this specific version at risk.

Exploitation Mechanism

Attackers exploit this vulnerability by leveraging the file upload functionality through the rich text editor on the vulnerable /admin/main/mod-blog page to upload and execute malicious code.

Mitigation and Prevention

This section provides guidance on how to mitigate the risks associated with CVE-2021-35290 and prevent potential exploitation.

Immediate Steps to Take

Users are advised to immediately disable file upload functionality within the rich text editor on the /admin/main/mod-blog page to prevent unauthorized code execution.

Long-Term Security Practices

Implement regular security assessments, code reviews, and user input validation mechanisms to safeguard against similar vulnerabilities in the future.

Patching and Updates

Stay informed about security updates released by the software vendor and apply patches promptly to address known vulnerabilities and enhance system security.