CVE-2023-25833 : Security Advisory and Response

This CVE-2023-25833 was published on May 10, 2023, by Esri. It involves an HTML injection vulnerability in Esri Portal for ArcGIS versions 11.0 and below. The vulnerability could potentially allow a remote, authenticated attacker to create a crafted link that, when clicked, could render arbitrary HTML in the victim’s browser. It is important to understand the impact, technical details, and mitigation strategies related to this CVE.

Understanding CVE-2023-25833

This section delves into what CVE-2023-25833 is, the impact it has, and the technical details surrounding this particular vulnerability.

What is CVE-2023-25833?

CVE-2023-25833 is an HTML injection vulnerability found in Esri Portal for ArcGIS versions 11.0 and earlier. It poses a risk of allowing a remote attacker to inject malicious HTML code into the victim's browser, potentially leading to cross-site scripting (XSS) attacks.

The Impact of CVE-2023-25833

The impact of this vulnerability lies in the ability of an authenticated attacker to manipulate the victim's browser to execute arbitrary HTML code. While this may not result in direct data exposure or modification, it can still be used for various nefarious purposes, including phishing and defacement.

Technical Details of CVE-2023-25833

Understanding the vulnerability description, affected systems and versions, as well as the exploitation mechanism is crucial for addressing CVE-2023-25833 effectively.

Vulnerability Description

The vulnerability in Esri Portal for ArcGIS versions 11.0 and below allows a remote, authenticated attacker to insert crafted links that can execute arbitrary HTML code in the victim's browser, potentially leading to unauthorized actions.

Affected Systems and Versions

Esri Portal for ArcGIS versions 11.0 and earlier are confirmed to be affected by this vulnerability. It is important for users of these versions to take immediate action to mitigate the risk.

Exploitation Mechanism

The exploitation of this vulnerability involves the creation of a specially crafted link by an authenticated attacker. When this link is clicked by a victim, the injected HTML code is executed in the victim's browser, opening the door for potential attacks.

Mitigation and Prevention

Taking immediate steps to address CVE-2023-25833, implementing long-term security practices, and ensuring timely patching and updates are essential for safeguarding systems against this vulnerability.

Immediate Steps to Take

Users of Esri Portal for ArcGIS versions 11.0 and below should apply the necessary security patches provided by Esri to mitigate the HTML injection vulnerability. Additionally, users should be cautious when interacting with links from untrusted sources to minimize the risk of exploitation.

Long-Term Security Practices

To enhance overall security posture, organizations should educate users about the risks associated with clicking on unknown links and regularly update their systems with the latest security patches. Implementing web application firewalls and conducting regular security assessments can also help in detecting and preventing such vulnerabilities.

Patching and Updates

Esri has released a security patch to address CVE-2023-25833 in Portal for ArcGIS versions 11.0 and earlier. Users are advised to promptly apply this patch to close the HTML injection vulnerability and protect their systems from potential attacks. Regularly checking for updates and staying informed about security advisories from Esri is crucial for maintaining a secure environment.