CVE-2018-17989 : Exploit Details and Defense Strategies

A stored XSS vulnerability exists in the web interface of D-Link DSL-3782 devices with firmware version 1.01, allowing authenticated attackers to inject malicious code into the ACL page.

Understanding CVE-2018-17989

This CVE involves a security flaw in D-Link DSL-3782 devices that can be exploited by attackers to execute unauthorized code.

What is CVE-2018-17989?

The vulnerability enables authenticated attackers to insert JavaScript or HTML code into the ACL page, leading to the execution of the injected payload when a specific page is accessed.

The Impact of CVE-2018-17989

The stored XSS vulnerability poses a risk of executing unauthorized code within a user's browser, potentially compromising sensitive information or performing malicious actions.

Technical Details of CVE-2018-17989

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The flaw allows attackers to inject malicious code into the ACL page of D-Link DSL-3782 devices with firmware version 1.01, exploiting the stored XSS vulnerability.

Affected Systems and Versions

Affected System: D-Link DSL-3782 devices
Affected Firmware Version: 1.01

Exploitation Mechanism

Attackers need to be authenticated to exploit the vulnerability.
By inserting a payload into the "/cgi-bin/New_GUI/Acl.asp" page, the injected code will execute when accessed by a user's browser.

Mitigation and Prevention

Protecting systems from this vulnerability requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the firmware of D-Link DSL-3782 devices to the latest version.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly audit and review web interfaces for vulnerabilities.
Educate users on safe browsing practices to prevent XSS attacks.

Patching and Updates

Apply security patches provided by D-Link to address the stored XSS vulnerability.