CVE-2020-12699 : Exploit Details and Defense Strategies

This CVE-2020-12699 article provides insights into an Open Redirect vulnerability in the direct_mail extension for TYPO3.

Understanding CVE-2020-12699

This CVE involves an Open Redirect vulnerability in the direct_mail extension for TYPO3, allowing attackers to redirect users to malicious websites.

What is CVE-2020-12699?

The direct_mail extension through version 5.2.3 for TYPO3 is susceptible to an Open Redirect via jumpUrl, potentially leading to phishing attacks or the redirection of users to harmful websites.

The Impact of CVE-2020-12699

This vulnerability could be exploited by attackers to deceive users into visiting malicious sites, compromising their sensitive information or executing further attacks.

Technical Details of CVE-2020-12699

Vulnerability Description

The direct_mail extension in TYPO3 up to version 5.2.3 is affected by an Open Redirect vulnerability through the jumpUrl parameter.

Affected Systems and Versions

Product: TYPO3
Vendor: TYPO3
Versions: up to 5.2.3

Exploitation Mechanism

Attackers can craft malicious URLs containing the jumpUrl parameter to redirect users to external sites, potentially leading to phishing or other malicious activities.

Mitigation and Prevention

Immediate Steps to Take

Disable the direct_mail extension if not essential for operations.
Implement input validation to prevent malicious URLs.
Regularly monitor and review website redirections.

Long-Term Security Practices

Stay informed about security advisories and updates from TYPO3.
Conduct regular security audits and penetration testing to identify vulnerabilities.

Patching and Updates

Apply patches or updates provided by TYPO3 to address the Open Redirect vulnerability in the direct_mail extension.