CVE-2020-21101 Explained : Impact and Mitigation

Screenly screenly-ose is affected by a Cross Site Scripting vulnerability in all versions, including v1.8.2, allowing remote attackers to execute arbitrary code.

Understanding CVE-2020-21101

This CVE identifies a security issue in Screenly screenly-ose that could be exploited by malicious actors.

What is CVE-2020-21101?

The vulnerability in Screenly screenly-ose allows attackers to execute arbitrary code by manipulating the 'URL' field on the 'Add Asset' page.

The Impact of CVE-2020-21101

Exploitation of this vulnerability could lead to remote code execution by unauthorized users.

Technical Details of CVE-2020-21101

Screenly screenly-ose's vulnerability has specific technical aspects that are crucial to understand.

Vulnerability Description

The vulnerability arises from improper input validation on the 'URL' field, enabling malicious code execution.

Affected Systems and Versions

Screenly screenly-ose all versions, including v1.8.2 (2019-09-25-Screenly-OSE-lite.img)

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the 'URL' field on the 'Add Asset' page.

Mitigation and Prevention

Protecting systems from CVE-2020-21101 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Screenly to address the vulnerability
Monitor and restrict access to the 'Add Asset' page

Long-Term Security Practices

Regularly update and patch software to prevent vulnerabilities
Conduct security audits and penetration testing to identify and address potential weaknesses

Patching and Updates

Stay informed about security updates from Screenly and apply them promptly to mitigate risks.