CVE-2021-36387 : Vulnerability Insights and Analysis
CVE-2021-36387 concerns a Stored Cross-Site Scripting vulnerability in Yellowfin BI before 9.6.1, allowing attackers to execute malicious scripts. Learn about the impact, technical details, and mitigation steps.
Yellowfin before version 9.6.1 has a Stored Cross-Site Scripting vulnerability that can be exploited through a specially crafted HTTP POST request to the page "ActivityStreamAjax.i4".
Understanding CVE-2021-36387
This CVE identifies a Stored Cross-Site Scripting vulnerability in Yellowfin before version 9.6.1, which could be leveraged via a malicious HTTP POST request.
What is CVE-2021-36387?
CVE-2021-36387 concerns a Stored Cross-Site Scripting flaw present in Yellowfin versions earlier than 9.6.1, allowing attackers to execute malicious scripts in the context of a user's session.
The Impact of CVE-2021-36387
The vulnerability could lead to various malicious activities, including unauthorized data access, account takeover, and potentially complete system compromise if exploited successfully.
Technical Details of CVE-2021-36387
In Yellowfin versions prior to 9.6.1, the vulnerability arises due to inadequate input validation in the video embed functionality, enabling attackers to inject and execute malicious scripts.
Vulnerability Description
CVE-2021-36387 is a Stored Cross-Site Scripting vulnerability that allows threat actors to embed and execute arbitrary scripts within the targeted user's browser.
Affected Systems and Versions
The vulnerability affects all versions of Yellowfin BI software before the release of version 9.6.1.
Exploitation Mechanism
By sending a specially crafted HTTP POST request to the "ActivityStreamAjax.i4" page, attackers can exploit this vulnerability to execute malicious scripts.
Mitigation and Prevention
To address CVE-2021-36387, immediate action is crucial to prevent potential security breaches and unauthorized access.
Immediate Steps to Take
- Upgrade Yellowfin BI to version 9.6.1 or later to eliminate the vulnerability.
- Implement proper input validation mechanisms to prevent script injection attacks.
Long-Term Security Practices
- Regularly update software and applications to patch known vulnerabilities promptly.
- Conduct routine security assessments and audits to identify and mitigate potential risks.
Patching and Updates
Stay informed about security advisories from Yellowfin BI and apply patches and updates promptly to ensure a secure environment.