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CVE-2021-21791 Explained : Impact and Mitigation

Discover the impact and mitigation strategies for CVE-2021-21791, an information disclosure vulnerability in IOBit Advanced SystemCare Ultimate 14.2.0.220. Learn how to secure your systems effectively.

IOBit Advanced SystemCare Ultimate 14.2.0.220 is affected by an information disclosure vulnerability that arises from the inadequate handling of Privileged I/O read requests by the driver. This vulnerability allows unprivileged users to access sensitive information from the kernel. Read below to understand the impact, technical details, and mitigation strategies for CVE-2021-21791.

Understanding CVE-2021-21791

This section provides insights into the nature of the vulnerability and its potential impact.

What is CVE-2021-21791?

The vulnerability in IOBit Advanced SystemCare Ultimate 14.2.0.220 driver allows for unauthorized access to sensitive kernel data through specially crafted I/O requests, potentially leading to information disclosure.

The Impact of CVE-2021-21791

With a CVSS base score of 6.5, this Medium severity vulnerability poses a significant risk to confidentiality, enabling the leakage of critical information to unauthorized users.

Technical Details of CVE-2021-21791

Explore the technical aspects of the vulnerability to understand its implications.

Vulnerability Description

The flaw in the driver's handling of I/O requests can be exploited to read sensitive data from the kernel, compromising confidentiality.

Affected Systems and Versions

IOBit Advanced SystemCare Ultimate 14.2.0.220 is known to be affected by this vulnerability, emphasizing the importance of prompt mitigation measures.

Exploitation Mechanism

By sending a specially crafted I/O request packet, attackers can trigger privileged reads in the driver's context, leading to the exposure of sensitive information.

Mitigation and Prevention

Learn how to protect your systems from the CVE-2021-21791 vulnerability through effective mitigation strategies.

Immediate Steps to Take

Users are advised to update IOBit Advanced SystemCare Ultimate to a secure version, limit access to sensitive data, and monitor for any unauthorized activities.

Long-Term Security Practices

Implementing strong access controls, regular security audits, and employee training on data security best practices can enhance long-term protection.

Patching and Updates

Regularly check for security patches from IOBit and apply them promptly to safeguard against known vulnerabilities.

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