CVE-2021-26072 : Vulnerability Insights and Analysis
Learn about CVE-2021-26072 affecting Confluence Server & Data Center. Understand the impact, technical details, affected versions & mitigation steps.
A Server-Side Request Forgery (SSRF) vulnerability, identified as CVE-2021-26072, affects Confluence Server and Confluence Data Center versions prior to 5.8.6. This vulnerability could be exploited by remote attackers to manipulate internal network resources through the WidgetConnector plugin.
Understanding CVE-2021-26072
This section provides an overview of the CVE-2021-26072 vulnerability in Confluence Server and Confluence Data Center.
What is CVE-2021-26072?
The WidgetConnector plugin in Confluence Server and Confluence Data Center before version 5.8.6 allowed remote attackers to manipulate the content of internal network resources via a blind Server-Side Request Forgery (SSRF) vulnerability.
The Impact of CVE-2021-26072
The SSRF vulnerability in Confluence Server and Confluence Data Center versions prior to 5.8.6 can result in unauthorized access to internal network resources and data manipulation by malicious actors.
Technical Details of CVE-2021-26072
In this section, we delve into the technical aspects of the CVE-2021-26072 vulnerability.
Vulnerability Description
The vulnerability arises from the WidgetConnector plugin in Confluence Server and Confluence Data Center versions before 5.8.6, allowing remote attackers to exploit SSRF to control internal network content.
Affected Systems and Versions
Confluence Server and Confluence Data Center versions prior to 5.8.6 are impacted by this vulnerability, leaving them susceptible to exploitation.
Exploitation Mechanism
Remote attackers can leverage the blind SSRF vulnerability in the WidgetConnector plugin to access and manipulate internal network resources.
Mitigation and Prevention
This section provides guidance on mitigating the risks associated with CVE-2021-26072.
Immediate Steps to Take
To address the vulnerability, users are advised to upgrade Confluence Server and Confluence Data Center to version 5.8.6 or newer. Additionally, strict network access controls can help prevent unauthorized SSRF exploits.
Long-Term Security Practices
Implementing security best practices such as regular security audits, network segmentation, and employee security awareness training can enhance overall defense against SSRF vulnerabilities.
Patching and Updates
Regularly applying security patches and updates provided by Atlassian for Confluence Server and Confluence Data Center is crucial to protect against known vulnerabilities.