CVE-2021-36346 Explained : Impact and Mitigation
Learn about CVE-2021-36346, a Medium severity vulnerability in Dell iDRAC 8 prior to 2.82.82.82 allowing remote attackers to disrupt webserver access. Find out the impact and mitigation steps.
Dell iDRAC 8 prior to version 2.82.82.82 has a denial of service vulnerability that could be exploited by an unauthenticated remote attacker to disrupt access to the iDRAC webserver.
Understanding CVE-2021-36346
This section will provide insights into the impact, technical details, and mitigation strategies related to CVE-2021-36346.
What is CVE-2021-36346?
CVE-2021-36346 is a vulnerability found in Dell's Integrated Dell Remote Access Controller (iDRAC) version 2.82.82.82 and below. It allows an attacker to carry out a denial of service attack by disrupting access to the iDRAC webserver without authentication.
The Impact of CVE-2021-36346
With a CVSS base score of 5.3 (Medium severity), this vulnerability poses a risk to the availability of affected systems. An attacker could exploit this flaw to potentially impact the functioning of Dell iDRAC 8 servers and disrupt their web server access.
Technical Details of CVE-2021-36346
Let's delve deeper into the specifics of this vulnerability.
Vulnerability Description
The vulnerability stems from inadequate authentication methods in Dell iDRAC 8 versions prior to 2.82.82.82, enabling remote attackers to execute a denial of service attack on the iDRAC webserver.
Affected Systems and Versions
Integrated Dell Remote Access Controller (iDRAC) versions below 2.82.82.82 are impacted by this vulnerability.
Exploitation Mechanism
An unauthenticated remote attacker can exploit this vulnerability to disrupt access to the iDRAC webserver, leading to a denial of service condition.
Mitigation and Prevention
Protecting systems from CVE-2021-36346 requires immediate action and long-term security measures.
Immediate Steps to Take
Ensure iDRAC instances are updated to version 2.82.82.82 or above to mitigate the vulnerability. Monitor system logs for any unusual activities that could indicate an ongoing attack.
Long-Term Security Practices
Implement strong access controls and authentication mechanisms to prevent unauthorized access to critical infrastructure components like iDRAC. Regular security assessments and audits are essential to detect and mitigate vulnerabilities proactively.
Patching and Updates
Regularly apply security patches provided by Dell for iDRAC to address known vulnerabilities and enhance the overall security posture.