CVE-2020-11626 Explained : Impact and Mitigation

An issue was discovered in EJBCA before 6.15.2.6 and 7.x before 7.3.1.2, leading to two Cross-Site Scripting (XSS) vulnerabilities in the Public Web and Certificate/CRL download servlets.

Understanding CVE-2020-11626

This CVE identifies XSS vulnerabilities in EJBCA versions prior to 6.15.2.6 and 7.3.1.2.

What is CVE-2020-11626?

The CVE-2020-11626 pertains to two XSS vulnerabilities found in the Public Web and Certificate/CRL download servlets of EJBCA.

The Impact of CVE-2020-11626

These vulnerabilities could allow attackers to execute malicious scripts in the context of a user's browser, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2020-11626

EJBCA versions before 6.15.2.6 and 7.x before 7.3.1.2 are affected by this CVE.

Vulnerability Description

The vulnerabilities enable Cross-Site Scripting (XSS) attacks, posing a risk of executing arbitrary code in users' browsers.

Affected Systems and Versions

EJBCA versions before 6.15.2.6
EJBCA 7.x versions before 7.3.1.2

Exploitation Mechanism

Attackers can exploit these vulnerabilities by injecting malicious scripts into the Public Web and Certificate/CRL download servlets, tricking users into executing them.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2020-11626.

Immediate Steps to Take

Update EJBCA to version 6.15.2.6 or 7.3.1.2, which contain patches for these XSS vulnerabilities.
Educate users about the risks of executing scripts from untrusted sources.

Long-Term Security Practices

Regularly monitor and audit web applications for vulnerabilities like XSS.
Implement Content Security Policy (CSP) to mitigate XSS risks by restricting the sources of executable scripts.

Patching and Updates

Stay informed about security updates and patches released by EJBCA to address known vulnerabilities.