CVE-2021-21792 : Vulnerability Insights and Analysis
Learn about CVE-2021-21792, an information disclosure vulnerability in IOBit Advanced SystemCare Ultimate 14.2.0.220 driver. Understand the impact, technical details, and mitigation steps to secure your system.
An information disclosure vulnerability has been identified in IOBit Advanced SystemCare Ultimate 14.2.0.220. This vulnerability allows privileged I/O read requests to be exploited, potentially leading to sensitive information disclosure from the kernel.
Understanding CVE-2021-21792
This section will cover what CVE-2021-21792 is, the impact of the vulnerability, technical details, and mitigation steps.
What is CVE-2021-21792?
CVE-2021-21792 is an information disclosure vulnerability in IOBit Advanced SystemCare Ultimate 14.2.0.220, where a specially crafted I/O request packet can allow privileged reads in the driver context, resulting in the disclosure of sensitive information.
The Impact of CVE-2021-21792
The impact of this vulnerability is rated as medium with a CVSS base score of 6.5. It can lead to high confidentiality impact by leaking sensitive data from the kernel to unprivileged users.
Technical Details of CVE-2021-21792
This section will dive into the vulnerability description, affected systems and versions, as well as the exploitation mechanism.
Vulnerability Description
The vulnerability arises from the way the IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Privileged I/O read requests, allowing for privileged reads that can lead to information disclosure.
Affected Systems and Versions
IOBit Advanced SystemCare Ultimate 14.2.0.220 is confirmed to be affected by this vulnerability.
Exploitation Mechanism
By sending a specially crafted I/O request packet, an attacker can trigger privileged reads within the driver context, potentially accessing sensitive kernel information.
Mitigation and Prevention
In this section, we will discuss immediate steps to take, long-term security practices, and the importance of patching and updates.
Immediate Steps to Take
Users are advised to update to the latest version of IOBit Advanced SystemCare Ultimate to mitigate the vulnerability. Additionally, limiting access to privileged I/O operations can help reduce the risk.
Long-Term Security Practices
Regularly updating software, implementing least privilege access controls, and monitoring I/O operations are crucial for maintaining system security.
Patching and Updates
Vendor patches should be applied promptly to address known vulnerabilities and enhance the security posture of the affected systems.