CVE-2021-29098 : Security Advisory and Response

Multiple uninitialized pointer vulnerabilities when parsing a specially crafted file in Esri ArcReader, ArcGIS Desktop, ArcGIS Engine, and ArcGIS Pro allow an unauthenticated attacker to achieve arbitrary code execution in the context of the current user.

Understanding CVE-2021-29098

This CVE involves multiple uninitialized pointer vulnerabilities in various Esri products that could lead to arbitrary code execution.

What is CVE-2021-29098?

CVE-2021-29098 is a security vulnerability in Esri products, including ArcReader, ArcGIS Desktop, ArcGIS Engine, and ArcGIS Pro. The vulnerability arises from uninitialized pointer issues when processing specific files, enabling attackers to execute arbitrary code without authentication.

The Impact of CVE-2021-29098

The impact of this vulnerability is significant as it allows unauthenticated attackers to run malicious code within the user's context, potentially leading to further exploitation of the affected systems.

Technical Details of CVE-2021-29098

This section delves into the specifics of the vulnerability, including affected systems, exploitation mechanisms, and more.

Vulnerability Description

The vulnerability stems from uninitialized pointer problems during file parsing in the affected Esri products, creating a pathway for unauthorized code execution.

Affected Systems and Versions

The vulnerable versions include ArcReader, ArcGIS Desktop, ArcGIS Engine, ArcGIS Pro, and Background Geoprocessing on various platforms such as Windows and Linux, with versions earlier than 10.9.0 or 4.7.2.

Exploitation Mechanism

Attacks leveraging CVE-2021-29098 can be carried out through specially crafted files that trigger the uninitialized pointer vulnerabilities, leading to arbitrary code execution.

Mitigation and Prevention

Protecting systems from CVE-2021-29098 requires immediate action and long-term security practices.

Immediate Steps to Take

Users are advised to update the affected Esri products to the latest non-vulnerable versions. Implementing proper input validation and restricting access to critical files can also mitigate the risk.

Long-Term Security Practices

Maintaining regular software updates, security patches, and investing in employee cybersecurity training are vital for preventing future vulnerabilities and ensuring overall system security.

Patching and Updates

Esri may release security patches and updates to address CVE-2021-29098. Keep an eye on official security advisories and promptly apply any available fixes to safeguard the affected systems.