CVE-2021-36631 Explained : Impact and Mitigation
Learn about CVE-2021-36631, a privilege escalation flaw in Baidunetdisk V7.4.3. Find out the impact, affected systems, exploitation, and mitigation steps.
A vulnerability has been identified in Baidunetdisk Version 7.4.3 and earlier that could allow an attacker to escalate privileges through a malicious DLL file. Here's what you need to know about CVE-2021-36631.
Understanding CVE-2021-36631
This section will cover the details of the CVE-2021-36631 vulnerability.
What is CVE-2021-36631?
CVE-2021-36631 is an untrusted search path vulnerability in Baidunetdisk Version 7.4.3 and earlier, which could enable a threat actor to elevate their privileges by exploiting a Trojan horse DLL placed in an unspecified directory.
The Impact of CVE-2021-36631
The impact of this vulnerability is the potential unauthorized elevation of privileges, allowing an attacker to perform malicious actions on the affected system.
Technical Details of CVE-2021-36631
In this section, we will delve into the technical specifics of CVE-2021-36631.
Vulnerability Description
The vulnerability arises from an untrusted search path issue in Baidunetdisk Version 7.4.3 and previous versions, whereby an attacker could implant a malicious DLL to execute arbitrary code.
Affected Systems and Versions
The affected system is Baidunetdisk Version 7.4.3 and earlier. All prior versions are also susceptible to this privilege escalation vulnerability.
Exploitation Mechanism
Exploitation of CVE-2021-36631 involves placing a malicious DLL in an undisclosed directory, leading the application to load the malevolent code and granting the attacker escalated privileges.
Mitigation and Prevention
This section focuses on the steps to mitigate and prevent exploitation of CVE-2021-36631.
Immediate Steps to Take
Users of Baidunetdisk should avoid downloading or executing files from untrusted sources. Employing strong endpoint protection and monitoring for unauthorized DLL loads can also help.
Long-Term Security Practices
Developers must adhere to secure coding practices, validate DLL integrity, and implement secure directory permissions to mitigate DLL hijacking vulnerabilities.
Patching and Updates
It is crucial for users to install the latest updates and patches provided by Baidunetdisk to address the CVE-2021-36631 vulnerability and enhance system security.