CVE-2021-22809 : Exploit Details and Defense Strategies
Discover the Out-of-Bounds Read vulnerability in Eurotherm by Schneider Electric GUIcon Version 2.0 and earlier. Learn about the impact, affected versions, and mitigation steps.
A CWE-125: Out-of-Bounds Read vulnerability has been identified in Eurotherm by Schneider Electric GUIcon Version 2.0 (Build 683.003) and prior. This vulnerability can lead to unintended data disclosure when a malicious *.gd1 configuration file is loaded into the GUIcon tool.
Understanding CVE-2021-22809
This section will provide an overview of the CVE-2021-22809 vulnerability, its impact, technical details, and mitigation steps.
What is CVE-2021-22809?
The CVE-2021-22809 involves an Out-of-Bounds Read vulnerability in Eurotherm by Schneider Electric GUIcon software, potentially resulting in unauthorized data access.
The Impact of CVE-2021-22809
The vulnerability poses a risk of unintended data disclosure when a specially crafted configuration file is loaded into the affected software, allowing potential exploitation by malicious actors.
Technical Details of CVE-2021-22809
This section will delve into the specific technical aspects of the CVE-2021-22809 vulnerability.
Vulnerability Description
The vulnerability arises due to improper handling of files in Eurotherm by Schneider Electric GUIcon, leading to an Out-of-Bounds Read scenario that could be exploited for data disclosure.
Affected Systems and Versions
Eurotherm by Schneider Electric GUIcon Version 2.0 (Build 683.003) and earlier versions are affected by this vulnerability.
Exploitation Mechanism
Malicious actors can exploit this vulnerability by introducing a specially crafted *.gd1 file into the GUIcon tool, triggering the Out-of-Bounds Read issue.
Mitigation and Prevention
To safeguard systems from CVE-2021-22809, immediate mitigation steps and long-term security practices are essential.
Immediate Steps to Take
Users should refrain from loading untrusted *.gd1 configuration files into Eurotherm by Schneider Electric GUIcon to mitigate the risk of data exposure.
Long-Term Security Practices
Implementing robust file input validation mechanisms and maintaining regular software updates can help prevent such vulnerabilities.
Patching and Updates
It is crucial for users to apply relevant security patches provided by Schneider Electric to address the CVE-2021-22809 vulnerability.