CVE-2021-26253 : Security Advisory and Response
Learn about CVE-2021-26253, a vulnerability in Splunk Enterprise's DUO MFA implementation allowing MFA bypass. Understand the impact, affected versions, exploitation, and mitigation steps.
A potential vulnerability in Splunk Enterprise's implementation of DUO MFA allows for bypassing the MFA verification in Splunk Enterprise versions before 8.1.6.
Understanding CVE-2021-26253
This CVE identifies a security flaw in Splunk Enterprise that could lead to bypassing the MFA verification process.
What is CVE-2021-26253?
The vulnerability in Splunk Enterprise's DUO MFA implementation allows attackers to bypass MFA verification in versions before 8.1.6.
The Impact of CVE-2021-26253
The vulnerability impacts Splunk Enterprise instances configured to use DUO MFA, posing a high risk to confidentiality, integrity, and availability.
Technical Details of CVE-2021-26253
The technical aspects of the vulnerability in Splunk Enterprise.
Vulnerability Description
The flaw enables attackers to circumvent MFA verification in Splunk Enterprise versions prior to 8.1.6.
Affected Systems and Versions
Splunk Enterprise versions before 8.1.6 are affected by this vulnerability.
Exploitation Mechanism
Attackers can exploit the vulnerability to bypass MFA verification in Splunk Enterprise instances using DUO MFA.
Mitigation and Prevention
Effective ways to mitigate and prevent exploitation of CVE-2021-26253.
Immediate Steps to Take
Organizations should update Splunk Enterprise to version 8.1.6 or later to address this vulnerability.
Long-Term Security Practices
Implementing strong authentication mechanisms and regular security audits can enhance overall security posture.
Patching and Updates
Regularly applying security patches from Splunk and staying informed about security advisories is crucial.