CVE-2020-12021 Explained : Impact and Mitigation
Learn about CVE-2020-12021, a critical cross-site scripting vulnerability in OSIsoft PI Web API 2019 and earlier versions, enabling remote code execution. Find mitigation steps and best practices here.
In OSIsoft PI Web API 2019 Patch 1 (1.12.0.6346) and all previous versions, a cross-site scripting vulnerability exists, potentially enabling remote code execution.
Understanding CVE-2020-12021
This CVE identifies a security issue in OSIsoft PI Web API 2019 and earlier versions.
What is CVE-2020-12021?
The vulnerability in OSIsoft PI Web API 2019 allows for a cross-site scripting attack, which could be exploited by malicious actors to execute arbitrary code remotely.
The Impact of CVE-2020-12021
The vulnerability poses a significant risk as attackers can potentially compromise the affected systems, leading to unauthorized code execution and data theft.
Technical Details of CVE-2020-12021
This section delves into the technical aspects of the CVE.
Vulnerability Description
The flaw involves improper neutralization of input during web page generation, specifically related to cross-site scripting (CWE-79).
Affected Systems and Versions
- Affected Product: OSIsoft PI Web API 2019
- Vulnerable Versions: OSIsoft PI Web API 2019 Patch 1 (1.12.0.6346) and all prior versions
Exploitation Mechanism
The vulnerability can be exploited through crafted web requests, allowing attackers to inject malicious scripts into web pages viewed by other users.
Mitigation and Prevention
Protecting systems from CVE-2020-12021 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Implement web application firewalls to filter and block malicious traffic.
- Regularly monitor and audit web applications for suspicious activities.
Long-Term Security Practices
- Conduct regular security training for developers to raise awareness of secure coding practices.
- Perform security assessments and penetration testing to identify and address vulnerabilities proactively.
Patching and Updates
- Stay informed about security updates and patches released by OSIsoft for the PI Web API.
- Ensure timely application of patches to mitigate the risk of exploitation.