CVE-2023-28699 : Exploit Details and Defense Strategies

This CVE involves an arbitrary file upload vulnerability in Wade Digital Design FANTSY, which could allow an authenticated remote attacker to upload a PHP file containing a webshell, leading to arbitrary system operations or service disruption.

Understanding CVE-2023-28699

This section delves into the specifics of CVE-2023-28699, including the vulnerability, impact, technical details, and mitigation strategies.

What is CVE-2023-28699?

CVE-2023-28699 is a security flaw in Wade Digital Design FANTSY that stems from insufficient filtering for file types in the file upload function. Attackers with general user privileges can exploit this vulnerability to upload a malicious PHP file containing a webshell, enabling them to execute arbitrary system operations or disrupt services.

The Impact of CVE-2023-28699

The impact of this vulnerability is significant, as attackers can leverage it to compromise the integrity, availability, and confidentiality of the affected system. With a CVSS v3.1 base score of 8.8, CVE-2023-28699 is considered a high-severity issue that requires immediate attention.

Technical Details of CVE-2023-28699

This section provides more in-depth technical insights into CVE-2023-28699, covering vulnerability description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The vulnerability in Wade Digital Design FANTSY results from the lack of proper file type filtering in its upload function, allowing attackers to upload PHP files with webshells for malicious activities.

Affected Systems and Versions

The impacted vendor is WADE DIGITAL DESIGN CO, LTD., and the affected product is FANTSY version 2.1.8. Users utilizing this specific version are at risk of exploitation.

Exploitation Mechanism

Attackers with authenticated remote access and general user privileges can exploit this vulnerability by uploading a PHP file containing a webshell. This malicious file upload can lead to arbitrary system operations or service disruption.

Mitigation and Prevention

To address CVE-2023-28699 and enhance system security, organizations and users must follow immediate and long-term mitigation strategies.

Immediate Steps to Take

Disable file uploads until a patch is available.
Monitor for any suspicious file upload activities.
Implement stringent access controls and user privilege management.

Long-Term Security Practices

Regularly update and patch applications to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and mitigate risks proactively.
Educate users on secure practices for file uploads and system access management.

Patching and Updates

Stay updated with security advisories from WADE DIGITAL DESIGN CO, LTD., and apply patches promptly to address the vulnerability and bolster system defenses.