CVE-2021-34691 Explained : Impact and Mitigation
Discover the impact and mitigation strategies for CVE-2021-34691, a critical denial of service vulnerability in iDrive RemotePC before version 4.0.1 on Linux that allows attackers to disconnect user sessions.
A denial of service vulnerability in iDrive RemotePC before version 4.0.1 on Linux allows a remote unauthenticated attacker to disconnect a valid user session by connecting to an ephemeral port.
Understanding CVE-2021-34691
This CVE refers to a specific vulnerability in iDrive RemotePC that enables a malicious actor to disrupt a user session on a Linux system.
What is CVE-2021-34691?
iDrive RemotePC versions prior to 4.0.1 on Linux are susceptible to a denial of service attack that can be triggered by an attacker connecting to an ephemeral port, resulting in the disconnection of a legitimate user session.
The Impact of CVE-2021-34691
The impact of this vulnerability is significant as it can result in a disruption of service for legitimate users of the iDrive RemotePC application on Linux systems.
Technical Details of CVE-2021-34691
Below are the technical details associated with CVE-2021-34691:
Vulnerability Description
The vulnerability in iDrive RemotePC allows remote unauthenticated attackers to disconnect valid user sessions by exploiting an ephemeral port.
Affected Systems and Versions
- Affected Product: iDrive RemotePC
- Affected Versions: Versions before 4.0.1
Exploitation Mechanism
Attackers can exploit this vulnerability by connecting to an ephemeral port on the target system, resulting in the termination of a valid user session.
Mitigation and Prevention
To address CVE-2021-34691, the following steps can be taken:
Immediate Steps to Take
It is recommended to update the iDrive RemotePC application to version 4.0.1 or newer to mitigate the vulnerability and prevent potential denial of service attacks.
Long-Term Security Practices
Incorporate a robust cybersecurity strategy that includes regular software updates, security patches, network monitoring, and access controls to enhance overall system security.
Patching and Updates
Regularly check for software updates and security advisories from iDrive to stay informed about patches and new releases that address known vulnerabilities.