CVE-2023-30179 : Exploit Details and Defense Strategies

CraftCMS version 3.7.59 is vulnerable to Server-Side Template Injection (SSTI), allowing an authenticated attacker to inject Twig Template to User Photo Location field, leading to Remote Code Execution. Although the vendor disputes this vulnerability, stating that only Administrators can add the Twig code by default, it remains a serious concern.

Understanding CVE-2023-30179

CraftCMS version 3.7.59 is susceptible to Server-Side Template Injection (SSTI), impacting user photo location settings and potentially allowing Remote Code Execution.

What is CVE-2023-30179?

CVE-2023-30179 is a vulnerability in CraftCMS version 3.7.59 that enables an authenticated attacker to perform Server-Side Template Injection by injecting Twig Template into the User Photo Location field.

The Impact of CVE-2023-30179

The impact of this vulnerability is significant as it can lead to Remote Code Execution, compromising the security and integrity of the affected system.

Technical Details of CVE-2023-30179

CraftCMS version 3.7.59 is affected by this vulnerability, allowing an attacker to inject malicious Twig Template code into the User Photo Location field.

Vulnerability Description

The vulnerability arises due to improper input validation, enabling attackers to exploit the User Photo Location setting to execute arbitrary code remotely.

Affected Systems and Versions

CraftCMS version 3.7.59 is specifically impacted by this vulnerability, with other versions not being affected.

Exploitation Mechanism

An authenticated attacker can exploit this vulnerability by injecting malicious Twig Template code into the User Photo Location field under User Settings, potentially leading to Remote Code Execution.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2023-30179 and uphold long-term security practices to prevent such vulnerabilities in the future.

Immediate Steps to Take

Administrators should closely monitor user inputs, restrict access to sensitive fields such as User Photo Location, and apply necessary security patches promptly.

Long-Term Security Practices

Implement a robust security framework, conduct regular security audits, educate users on secure practices, and stay informed about relevant security advisories.

Patching and Updates

CraftCMS users should update to the latest version to address the CVE-2023-30179 vulnerability and follow vendor recommendations for securing their systems.