CVE-2018-9081 Explained : Impact and Mitigation

A vulnerability affecting Iomega, Lenovo, and LenovoEMC NAS devices versions 4.1.402.34662 and earlier exposes them to self-cross-site scripting (self-XSS) through file names used for assets accessed via the Content Viewer application.

Understanding CVE-2018-9081

This CVE involves a security issue in NAS devices that can be exploited by malicious actors to execute cross-site scripting attacks.

What is CVE-2018-9081?

The vulnerability in Iomega, Lenovo, and LenovoEMC NAS devices allows attackers to inject malicious payloads through file names, leading to potential cross-site scripting attacks.

The Impact of CVE-2018-9081

The vulnerability enables threat actors to add files with crafted names to accessible shares, exploiting unsuspecting users who trigger the payload by attempting to rename the file.

Technical Details of CVE-2018-9081

This section provides in-depth technical insights into the vulnerability.

Vulnerability Description

The flaw in NAS devices versions 4.1.402.34662 and earlier allows for self-XSS through manipulated file names, posing a risk of unauthorized script execution.

Affected Systems and Versions

Affected Products: Iomega StorCenter, LenovoEMC, EZ Media and Backup Center
Vendor: Lenovo Group LTD
Vulnerable Versions: <= 4.1.402.34662

Exploitation Mechanism

Malicious actors can exploit the vulnerability by adding files with specially crafted names to shares accessible via the Content Viewer, waiting for users to trigger the payload unwittingly.

Mitigation and Prevention

Protecting systems from CVE-2018-9081 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update NAS devices to the latest firmware version provided by Lenovo.
Educate users on safe file handling practices to prevent inadvertent triggering of malicious payloads.

Long-Term Security Practices

Regularly monitor and audit file shares for suspicious activities.
Implement network segmentation to contain potential attacks and limit exposure.

Patching and Updates

Apply security patches and updates promptly to address known vulnerabilities and enhance system security.