CVE-2019-19547 : Vulnerability Insights and Analysis

Symantec Endpoint Detection and Response (SEDR) prior to version 4.3.0 is vulnerable to a cross-site scripting (XSS) issue that could allow attackers to inject client-side scripts into web pages.

Understanding CVE-2019-19547

Symantec Endpoint Detection and Response (SEDR) versions prior to 4.3.0 are at risk of a cross-site scripting vulnerability.

What is CVE-2019-19547?

Cross-site scripting (XSS) vulnerability in Symantec Endpoint Detection and Response (SEDR) prior to 4.3.0
XSS allows attackers to insert malicious scripts into web pages viewed by other users
Exploiting XSS can help attackers bypass access controls like the same-origin policy

The Impact of CVE-2019-19547

Attackers may execute arbitrary scripts in the context of a user's browser
Sensitive information could be accessed or modified by malicious actors
Potential for unauthorized actions on behalf of users

Technical Details of CVE-2019-19547

Symantec Endpoint Detection and Response (SEDR) prior to version 4.3.0 is affected by a cross-site scripting vulnerability.

Vulnerability Description

XSS vulnerability in SEDR allows attackers to inject and execute malicious scripts

Affected Systems and Versions

Product: Symantec Endpoint Detection and Response (SEDR)
Vendor: Symantec
Versions Affected: Prior to 4.3.0

Exploitation Mechanism

Attackers exploit XSS to inject scripts into web pages viewed by other users
By bypassing access controls, attackers can perform unauthorized actions

Mitigation and Prevention

Immediate Steps to Take:

Update Symantec Endpoint Detection and Response (SEDR) to version 4.3.0 or later
Regularly monitor for security advisories and patches from Symantec Long-Term Security Practices:
Implement input validation to prevent XSS attacks
Educate users on safe browsing habits and recognizing phishing attempts
Employ web application firewalls to filter and block malicious traffic
Regularly conduct security assessments and penetration testing
Patching and Updates:
Apply security patches and updates provided by Symantec promptly