CVE-2019-16700 : What You Need to Know

This CVE involves the slub_events extension for TYPO3, allowing the uploading of arbitrary files to the webserver, potentially leading to code execution or denial of service.

Understanding CVE-2019-16700

The slub_events extension in TYPO3 up to version 3.0.2 has a vulnerability that can be exploited to upload files onto the webserver, posing a risk of code execution or denial of service.

What is CVE-2019-16700?

The slub_events (SLUB: Event Registration) extension in TYPO3 up to version 3.0.2 permits the uploading of any files to the webserver, creating a security risk.

The Impact of CVE-2019-16700

Versions 1.2.2 and earlier may allow remote code execution through the uploaded files.
Versions newer than 1.2.2 could result in a denial of service due to web space allocation overrun by arbitrary files.

Technical Details of CVE-2019-16700

The technical aspects of this CVE include:

Vulnerability Description

The vulnerability in the slub_events extension allows unauthorized file uploads, leading to potential code execution or denial of service.

Affected Systems and Versions

Product: TYPO3
Vendor: N/A
Versions affected: Up to 3.0.2

Exploitation Mechanism

The exploitation involves uploading files onto the webserver, which can be abused to execute code remotely or cause a denial of service.

Mitigation and Prevention

To address CVE-2019-16700, consider the following steps:

Immediate Steps to Take

Disable the slub_events extension if not essential.
Monitor file uploads and restrict file types.
Regularly update TYPO3 and extensions.

Long-Term Security Practices

Implement file upload restrictions and validation.
Conduct regular security audits and penetration testing.

Patching and Updates

Apply patches and updates provided by TYPO3 promptly to mitigate the vulnerability.