CVE-2020-13153 : Security Advisory and Response

MISP before 2.4.126 is susceptible to XSS in the resolved attributes view.

Understanding CVE-2020-13153

MISP version 2.4.126 and prior versions are impacted by a cross-site scripting vulnerability in the resolved attributes view.

What is CVE-2020-13153?

The vulnerability in app/View/Events/resolved_attributes.ctp in MISP before version 2.4.126 allows for cross-site scripting attacks in the resolved attributes view.

The Impact of CVE-2020-13153

This vulnerability could be exploited by attackers to execute malicious scripts in the context of the user's browser, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2020-13153

MISP before version 2.4.126 is affected by a cross-site scripting vulnerability.

Vulnerability Description

The issue resides in the resolved attributes view (app/View/Events/resolved_attributes.ctp) in MISP versions prior to 2.4.126, enabling XSS attacks.

Affected Systems and Versions

Product: MISP
Vendor: N/A
Versions affected: MISP versions before 2.4.126

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the resolved attributes view, which may execute in the context of the user's browser.

Mitigation and Prevention

To address CVE-2020-13153, follow these mitigation steps:

Immediate Steps to Take

Update MISP to version 2.4.126 or later to mitigate the XSS vulnerability.
Regularly monitor for security advisories and patches from MISP.

Long-Term Security Practices

Implement input validation and output encoding to prevent XSS attacks.
Educate users on safe browsing practices and the risks of executing untrusted scripts.

Patching and Updates

Apply security patches promptly to ensure that known vulnerabilities are addressed and system security is maintained.