CVE-2022-47408 : Security Advisory and Response
Learn about CVE-2022-47408, a critical security flaw in TYPO3 fp_newsletter extension allowing unauthorized subscriptions. Find mitigation steps and update information.
An issue was discovered in the fp_newsletter (aka Newsletter subscriber management) extension before 1.1.1, 1.2.0, 2.x before 2.1.2, 2.2.1 through 2.4.0, and 3.x before 3.2.6 for TYPO3. The vulnerability allows a CAPTCHA bypass that can lead to subscribing many people.
Understanding CVE-2022-47408
This section provides an overview of the critical security issue identified in the TYPO3 fp_newsletter extension.
What is CVE-2022-47408?
The CVE-2022-47408 vulnerability exists in the fp_newsletter extension for TYPO3, allowing attackers to bypass CAPTCHA and maliciously subscribe multiple users without verification.
The Impact of CVE-2022-47408
This vulnerability has a critical impact, with high confidentiality and integrity impacts. Attackers can exploit the issue to carry out unauthorized mass subscriptions, potentially leading to various consequences.
Technical Details of CVE-2022-47408
Explore the technical aspects of the CVE-2022-47408 vulnerability to understand its implications better.
Vulnerability Description
The flaw in the fp_newsletter extension versions mentioned earlier enables attackers to bypass CAPTCHA protection, exploiting it to subscribe numerous users to the newsletter.
Affected Systems and Versions
The affected systems include TYPO3 instances running fp_newsletter versions before 1.1.1, 1.2.0, 2.x before 2.1.2, 2.2.1 through 2.4.0, and 3.x before 3.2.6.
Exploitation Mechanism
By exploiting the CAPTCHA bypass vulnerability, threat actors can automate the subscription process, leading to an influx of unauthorized subscriptions within the affected TYPO3 installations.
Mitigation and Prevention
Discover the necessary steps to mitigate the risks associated with CVE-2022-47408 and enhance the security of TYPO3 instances.
Immediate Steps to Take
To address the vulnerability, TYPO3 administrators should update the fp_newsletter extension to versions 1.1.1, 1.2.0, 2.1.2, 2.4.0, or 3.2.6, where the issue has been resolved.
Long-Term Security Practices
Implementing robust CAPTCHA mechanisms, conducting regular security assessments, and staying informed about TYPO3 security advisories are essential for maintaining long-term security.
Patching and Updates
Regularly applying security patches and updates for TYPO3 extensions, including fp_newsletter, can help prevent potential security breaches and protect against known vulnerabilities.