CVE-2021-21581 Explained : Impact and Mitigation
Learn about CVE-2021-21581, a medium-severity cross-site scripting flaw in Dell EMC iDRAC9 versions before 5.00.00.00. Understand its impact, technical details, and mitigation steps.
Dell EMC iDRAC9 versions prior to 5.00.00.00 have a cross-site scripting vulnerability that could allow a remote attacker to execute malicious scripts in a victim's browser. Learn more about the impact, technical details, and mitigation strategies associated with CVE-2021-21581.
Understanding CVE-2021-21581
This section provides an overview of the CVE-2021-21581 vulnerability.
What is CVE-2021-21581?
CVE-2021-21581 is a cross-site scripting vulnerability found in Dell EMC iDRAC9 versions before 5.00.00.00. It enables remote attackers to inject malicious HTML or JavaScript into a victim's browser by manipulating the victim into clicking a specially crafted link.
The Impact of CVE-2021-21581
With a CVSS base score of 6.5 (Medium severity), this vulnerability poses a risk of high integrity impact without requiring special privileges. Attackers can exploit it via network attack vectors, necessitating user interaction.
Technical Details of CVE-2021-21581
Delve deeper into the technical aspects of CVE-2021-21581 to understand its intricacies.
Vulnerability Description
The vulnerability stems from inadequate input validation in Dell EMC iDRAC9, allowing adversaries to execute arbitrary code on vulnerable systems.
Affected Systems and Versions
The affected product is the Integrated Dell Remote Access Controller (iDRAC), with versions prior to 5.00.00.00 specified as vulnerable.
Exploitation Mechanism
Exploiting this vulnerability involves deceiving a user to click on a malicious link, leading to the injection of unauthorized scripts into their browser.
Mitigation and Prevention
Explore strategies to mitigate the risks associated with CVE-2021-21581 and prevent future occurrences.
Immediate Steps to Take
Users should update their iDRAC9 software to version 5.00.00.00 or above to eliminate the vulnerability and enhance security.
Long-Term Security Practices
Implement robust cybersecurity practices, including regular software updates, network monitoring, and security awareness training to defend against XSS attacks.
Patching and Updates
Stay informed about security patches and updates released by Dell to address vulnerabilities like CVE-2021-21581.