CVE-2021-20868 : Security Advisory and Response
Learn about CVE-2021-20868 affecting KONICA MINOLTA bizhub series. Understand the impact, technical details, affected systems, exploitation mechanism, and mitigation steps.
This article discusses an incorrect authorization vulnerability identified as CVE-2021-20868 in the KONICA MINOLTA bizhub series. The vulnerability affects a wide range of versions, allowing an attacker on the adjacent network to obtain user credentials.
Understanding CVE-2021-20868
This section provides detailed insights into the CVE-2021-20868 vulnerability in KONICA MINOLTA bizhub series.
What is CVE-2021-20868?
The CVE-2021-20868 vulnerability is an incorrect authorization issue in the KONICA MINOLTA bizhub series. Attackers can leverage this vulnerability to access user credentials.
The Impact of CVE-2021-20868
The vulnerability poses a significant risk as it enables unauthorized access to user credentials if external server authentication is enabled in the affected versions.
Technical Details of CVE-2021-20868
In this section, we delve into the technical aspects of the CVE-2021-20868 vulnerability.
Vulnerability Description
The vulnerability arises from incorrect authorization mechanisms within the affected KONICA MINOLTA bizhub series, making it possible for attackers to retrieve user credentials.
Affected Systems and Versions
The vulnerability impacts a wide range of versions including bizhub C750i G00-35, C650i, C550i, C450i G00-B6, C360i, C300i, C250i G00-B6, and many others.
Exploitation Mechanism
By sending a specific SOAP message, an attacker on the adjacent network can exploit the vulnerability to obtain user credentials.
Mitigation and Prevention
This section outlines the steps to mitigate and prevent exploitation of CVE-2021-20868.
Immediate Steps to Take
Users should disable external server authentication and apply the necessary security updates to address the vulnerability promptly.
Long-Term Security Practices
Implement network segmentation and access controls to restrict unauthorized access to critical systems and sensitive data.
Patching and Updates
Ensure that the KONICA MINOLTA bizhub series devices are regularly updated with the latest patches and firmware releases to mitigate security risks effectively.