CVE-2020-11067 : Vulnerability Insights and Analysis

TYPO3 CMS versions 9.0.0 to 9.5.16 and 10.0.0 to 10.4.1 are vulnerable to insecure deserialization in backend user settings, potentially leading to remote code execution.

Understanding CVE-2020-11067

Insecure deserialization in TYPO3 CMS can allow attackers to execute remote code by exploiting backend user settings.

What is CVE-2020-11067?

In TYPO3 CMS versions 9.0.0 to 9.5.16 and 10.0.0 to 10.4.1, insecure deserialization in backend user settings can be exploited for remote code execution.
A valid backend user account is required to leverage this vulnerability.

The Impact of CVE-2020-11067

CVSS Score: 8.8 (High)
Attack Vector: Network
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Privileges Required: Low
This vulnerability can have severe consequences, potentially allowing attackers to take control of the affected system.

Technical Details of CVE-2020-11067

TYPO3 CMS vulnerability details and affected systems.

Vulnerability Description

Insecure deserialization in backend user settings of TYPO3 CMS versions 9.0.0 to 9.5.16 and 10.0.0 to 10.4.1.
When combined with third-party component vulnerabilities, it can lead to remote code execution.

Affected Systems and Versions

Affected Versions: >= 9.0.0, < 9.5.17 and >= 10.0.0, < 10.4.2
Affected Product: TYPO3 CMS
Vendor: TYPO3

Exploitation Mechanism

Attack Complexity: Low
Scope: Unchanged
User Interaction: None
Attack Vector: Network
Privileges Required: Low

Mitigation and Prevention

Protecting systems from CVE-2020-11067.

Immediate Steps to Take

Update TYPO3 CMS to versions 9.5.17 and 10.4.2 to patch the vulnerability.
Monitor backend user accounts for any suspicious activities.

Long-Term Security Practices

Regularly update and patch all software components.
Implement strong authentication mechanisms to prevent unauthorized access.

Patching and Updates

Apply security patches promptly to prevent exploitation of known vulnerabilities.