CVE-2023-25830 : What You Need to Know

This article provides detailed information about CVE-2023-25830, a reflected XSS vulnerability in Esri Portal for ArcGIS versions 10.9.1, 10.8.1, and 10.7.1.

Understanding CVE-2023-25830

This vulnerability allows a remote, unauthenticated attacker to create a crafted link that, when clicked, could potentially execute arbitrary JavaScript code in the victim's browser.

What is CVE-2023-25830?

CVE-2023-25830 is a reflected Cross-Site Scripting (XSS) vulnerability found in Esri Portal for ArcGIS software versions 10.9.1, 10.8.1, and 10.7.1. It poses a risk of executing malicious code in the victim's browser through a specially created link.

The Impact of CVE-2023-25830

The impact of this vulnerability is rated as Medium with a CVSS base score of 6.1. It could allow an attacker to manipulate user sessions, steal sensitive information, or perform unauthorized actions within the application.

Technical Details of CVE-2023-25830

This section discusses the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability is classified under CAPEC-591 Reflected XSS. It arises due to improper neutralization of input during web page generation, enabling attackers to inject and execute malicious scripts in the victim's browser.

Affected Systems and Versions

Esri Portal for ArcGIS versions 10.9.1, 10.8.1, and 10.7.1 are confirmed to be affected by this XSS vulnerability.

Exploitation Mechanism

An attacker can exploit this vulnerability by creating a specially crafted link containing malicious JavaScript code. When a victim clicks on the link, the code executes in the user's browser, potentially leading to account compromise or data theft.

Mitigation and Prevention

To protect systems from CVE-2023-25830, it is essential to implement appropriate mitigation strategies and security measures.

Immediate Steps to Take

One immediate mitigation step is to utilize a Web Application Firewall (WAF) to filter JavaScript from URL query parameters. This can help block malicious scripts from being executed through vulnerable links.

Long-Term Security Practices

In the long term, organizations should conduct regular security assessments, implement secure coding practices, and provide ongoing security training to developers and users to prevent similar vulnerabilities.

Patching and Updates

Esri has released a security update patch for Portal for ArcGIS to address CVE-2023-25830. It is crucial for users to apply this patch promptly to eliminate the vulnerability and enhance the security of their systems.