CVE-2023-25829 : Exploit Details and Defense Strategies

This CVE-2023-25829 was published on May 9, 2023, by Esri. It involves an unvalidated redirect vulnerability in Esri Portal for ArcGIS versions 11.0 and 10.9.1. This vulnerability can potentially be exploited by a remote, unauthenticated attacker to redirect a victim to a malicious website, making phishing attacks easier.

Understanding CVE-2023-25829

This section will delve into the details of CVE-2023-25829, including the vulnerability description, impact, affected systems and versions, and the exploitation mechanism.

What is CVE-2023-25829?

CVE-2023-25829 is an unvalidated redirect vulnerability found in Esri Portal for ArcGIS versions 11.0 and 10.9.1. It enables attackers to craft URLs that can redirect unsuspecting users to malicious websites, facilitating phishing attempts.

The Impact of CVE-2023-25829

The impact of CVE-2023-25829 falls under CAPEC-73, which involves user-controlled filenames. This vulnerability could lead to user redirection to untrusted sites, posing risks to confidentiality and integrity.

Technical Details of CVE-2023-25829

In this section, we will explore the vulnerability description, affected systems and versions, and the exploitation mechanism of CVE-2023-25829.

Vulnerability Description

The vulnerability lies in the unvalidated redirect functionality of Esri Portal for ArcGIS versions 11.0 and 10.9.1. Attackers can manipulate URLs to redirect users to malicious websites, increasing the likelihood of successful phishing attacks.

Affected Systems and Versions

Esri Portal for ArcGIS versions 11.0 and 10.9.1 are affected by this unvalidated redirect vulnerability. Users utilizing these versions are at risk of falling victim to potential phishing attacks.

Exploitation Mechanism

Remote, unauthenticated attackers can exploit this vulnerability by crafting URLs that redirect unsuspecting users to arbitrary websites. This redirection mechanism simplifies the execution of phishing attacks, putting user data and security at risk.

Mitigation and Prevention

This section will discuss the necessary steps to mitigate and prevent the exploitation of CVE-2023-25829 through immediate actions, long-term security practices, and patching processes.

Immediate Steps to Take

To address CVE-2023-25829, users of affected Esri Portal for ArcGIS versions 11.0 and 10.9.1 should be cautious while interacting with URLs and avoid clicking on suspicious links. Additionally, implementing security awareness training to recognize phishing attempts can enhance overall security posture.

Long-Term Security Practices

For long-term security, organizations should prioritize regular cybersecurity training for employees, keep software and systems updated with the latest patches, and conduct periodic security audits to identify and mitigate potential vulnerabilities.

Patching and Updates

Esri has released a security update patch for Portal for ArcGIS in response to CVE-2023-25829. Users are advised to apply the latest patch promptly to remediate the unvalidated redirect vulnerability and enhance the security of their systems.