CVE-2021-27465 : What You Need to Know

A vulnerability has been identified in multiple versions of Emerson Rosemount X-STREAM Gas Analyzer. The flaw allows attackers to inject arbitrary HTML code into webpages, potentially leading to unauthorized modifications and the display of incorrect data.

Understanding CVE-2021-27465

This CVE pertains to a vulnerability found in Emerson Rosemount X-STREAM Gas Analyzer, where input validation issues enable Cross-Site Scripting attacks.

What is CVE-2021-27465?

CVE-2021-27465 is a security vulnerability affecting various versions of Emerson Rosemount X-STREAM Gas Analyzer. The flaw arises due to inadequate validation of webpage inputs, making it possible for malicious actors to insert arbitrary HTML code into the application's pages.

The Impact of CVE-2021-27465

The vulnerability poses a significant risk as it allows threat actors to manipulate webpage content, leading to the display of inaccurate or harmful information to users. This could result in reputational damage, loss of sensitive data, and potential further exploitation of affected systems.

Technical Details of CVE-2021-27465

This section provides insights into the vulnerability's description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in Emerson Rosemount X-STREAM Gas Analyzer arises from a lack of validation of webpage inputs, which enables attackers to execute Cross-Site Scripting (XSS) attacks by injecting malicious HTML code into webpages.

Affected Systems and Versions

Emerson Rosemount X-STREAM Gas Analyzer is impacted across various versions, including X-STREAM enhanced XEGP, XEGK, XEFD, and XEXF – all revisions.

Exploitation Mechanism

Malicious actors can exploit this vulnerability by injecting specially crafted HTML code into webpages accessed by the affected Emerson Rosemount X-STREAM Gas Analyzer, thereby potentially altering the page's content and misleading users.

Mitigation and Prevention

To address CVE-2021-27465 effectively, it is crucial to take immediate action and implement long-term security measures.

Immediate Steps to Take

Organizations using the affected versions of Emerson Rosemount X-STREAM Gas Analyzer should apply security patches provided by the vendor immediately. Additionally, enhancing input validation mechanisms can help mitigate the risk of Cross-Site Scripting attacks.

Long-Term Security Practices

Maintaining regular security assessments, staying informed about potential vulnerabilities, and educating users on safe browsing practices are essential for long-term security.

Patching and Updates

Regularly checking for and applying security patches released by Emerson for X-STREAM Gas Analyzer will help protect systems from known vulnerabilities and ensure a secure operational environment.