CVE-2019-9539 : Exploit Details and Defense Strategies

Telos Automated Message Handling System is vulnerable to a 'Cross-site Scripting' issue in the ModalWindowPopup.asp, allowing remote attackers to inject malicious scripts into an AMHS session. This vulnerability affects versions prior to 4.1.5.5.

Understanding CVE-2019-9539

This CVE entry describes a specific vulnerability in the Telos Automated Message Handling System.

What is CVE-2019-9539?

The vulnerability, known as 'Cross-site Scripting,' enables attackers to inject scripts into an AMHS session through ModalWindowPopup.asp in Telos Automated Message Handling System versions earlier than 4.1.5.5.

The Impact of CVE-2019-9539

This vulnerability could be exploited by remote attackers to execute arbitrary scripts within the context of an AMHS session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2019-9539

Telos Automated Message Handling System's vulnerability is detailed below.

Vulnerability Description

The issue stems from improper neutralization of input during web page generation, specifically in ModalWindowPopup.asp, allowing for Cross-site Scripting attacks.

Affected Systems and Versions

Product: Automated Message Handling System
Vendor: Telos
Versions Affected: < 4.1.5.5 (unspecified/custom version)

Exploitation Mechanism

The vulnerability can be exploited by injecting malicious scripts into the AMHS session through the affected ModalWindowPopup.asp component.

Mitigation and Prevention

Protecting systems from CVE-2019-9539 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Telos Automated Message Handling System to version 4.1.5.5 or later to mitigate the vulnerability.
Monitor and restrict access to the affected component to prevent unauthorized script injections.

Long-Term Security Practices

Implement input validation mechanisms to sanitize user inputs and prevent script injections.
Conduct regular security assessments and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Regularly apply security patches and updates provided by Telos to address known vulnerabilities and enhance system security.