CVE-2019-9538 : Security Advisory and Response

Telos Automated Message Handling System reflected XSS in LDAP cbURL parameter

Understanding CVE-2019-9538

This CVE involves a Cross-site Scripting vulnerability in the Telos Automated Message Handling System, potentially allowing remote attackers to insert arbitrary scripts into an AMHS session.

What is CVE-2019-9538?

The vulnerability, titled "Cross-site Scripting," affects the LDAP cbURL parameter of the Telos Automated Message Handling System, specifically in versions older than 4.1.5.5.

The Impact of CVE-2019-9538

The vulnerability poses a risk of remote attackers injecting malicious scripts into AMHS sessions, potentially compromising system integrity and data confidentiality.

Technical Details of CVE-2019-9538

Vulnerability Description

The vulnerability stems from improper neutralization of input during web page generation in the LDAP cbURL parameter of the Telos Automated Message Handling System.

Affected Systems and Versions

Product: Automated Message Handling System
Vendor: Telos
Versions Affected: Older than 4.1.5.5
Version Type: Custom

Exploitation Mechanism

The vulnerability can be exploited by remote attackers to insert arbitrary scripts into AMHS sessions, leading to potential security breaches.

Mitigation and Prevention

Immediate Steps to Take

Update Telos Automated Message Handling System to version 4.1.5.5 or newer to mitigate the vulnerability.
Implement input validation mechanisms to sanitize user inputs and prevent script injection.

Long-Term Security Practices

Regularly monitor and audit system logs for any suspicious activities related to script injection.
Conduct security training for system administrators and users to raise awareness about the risks of cross-site scripting vulnerabilities.

Patching and Updates

Stay informed about security advisories from Telos and promptly apply patches and updates to address known vulnerabilities.