CVE-2021-33510 : What You Need to Know

Plone through 5.2.4 allows remote authenticated managers to conduct SSRF attacks via an event ical URL, to read one line of a file.

Understanding CVE-2021-33510

This CVE refers to a vulnerability in Plone that enables authenticated managers to perform SSRF attacks.

What is CVE-2021-33510?

CVE-2021-33510 allows remote authenticated managers in Plone versions up to 5.2.4 to carry out Server-Side Request Forgery attacks by utilizing an event ical URL to extract one line of a file.

The Impact of CVE-2021-33510

The vulnerability can be exploited by malicious users to bypass security restrictions, leading to unauthorized access and potential data leaks.

Technical Details of CVE-2021-33510

In-depth technical insights into the vulnerability in Plone versions up to 5.2.4.

Vulnerability Description

The flaw enables authenticated managers to trigger SSRF attacks through a crafted event ical URL, compromising file confidentiality.

Affected Systems and Versions

Plone versions through 5.2.4 are impacted by this security vulnerability.

Exploitation Mechanism

Remote authenticated managers can exploit the SSRF flaw by leveraging specially designed event ical URLs.

Mitigation and Prevention

Preventive measures and solutions to address CVE-2021-33510.

Immediate Steps to Take

Administrators should apply security patches promptly and monitor for suspicious activities.

Long-Term Security Practices

Implement proper access controls, conduct regular security audits, and educate users on secure practices.

Patching and Updates

Ensure Plone is updated to versions beyond 5.2.4 to mitigate the SSRF vulnerability.