CVE-2021-21785 : What You Need to Know
Learn about CVE-2021-21785, an information disclosure vulnerability in IOBit Advanced SystemCare Ultimate 14.2.0.220, allowing attackers to access sensitive data. Find mitigation steps and security practices.
An information disclosure vulnerability exists in the IOCTL 0x9c40a148 handling of IOBit Advanced SystemCare Ultimate 14.2.0.220. This vulnerability can be exploited by a specially crafted I/O request packet to disclose sensitive information.
Understanding CVE-2021-21785
This section delves into the critical aspects of CVE-2021-21785.
What is CVE-2021-21785?
CVE-2021-21785 is an information disclosure vulnerability in the handling of IOCTL 0x9c40a148 within IOBit Advanced SystemCare Ultimate 14.2.0.220. An attacker could exploit this vulnerability by sending a malicious I/O request packet to reveal sensitive data.
The Impact of CVE-2021-21785
The vulnerability's CVSS base score of 6.5 indicates a medium severity level. It can lead to high confidentiality impact with low privileges required and a changed scope, allowing an attacker to access sensitive data.
Technical Details of CVE-2021-21785
This section covers the technical aspects of CVE-2021-21785.
Vulnerability Description
The flaw stems from the exposed IOCTL with insufficient access control in the handling process of IOBit Advanced SystemCare Ultimate 14.2.0.220, enabling an attacker to execute an information disclosure attack.
Affected Systems and Versions
IOBit Advanced SystemCare Ultimate 14.2.0.220 is the affected version by this vulnerability.
Exploitation Mechanism
By sending a specially crafted I/O request packet (IRP) to the IOCTL 0x9c40a148 handler, an attacker can trigger the vulnerability and disclose sensitive information.
Mitigation and Prevention
Understanding how to mitigate and prevent CVE-2021-21785 is crucial.
Immediate Steps to Take
To mitigate the risk associated with this vulnerability, users should consider implementing access control mechanisms, monitoring I/O requests, and applying security updates promptly.
Long-Term Security Practices
Establishing regular security training, implementing least privilege access, and conducting security assessments are essential for long-term protection against similar vulnerabilities.
Patching and Updates
Users are strongly advised to apply the latest security patches and updates provided by IOBit to address CVE-2021-21785 and enhance system security.