A new vulnerability dubbed CVE-2022-44830 was recently discovered in the Sourcecodester Event Registration App v1.. This security issue exposes users to multiple CSV injection vulnerabilities via the First Name, Contact, and Remarks fields. If exploited, these vulnerabilities can allow an attacker to execute arbitrary code via a crafted Excel file. In this post, we'll take an in-depth look at this vulnerability, the code snippet which reveals the problem, and explore the potential impacts of this exploit.

Exploit Details

The Sourcecodester Event Registration App v1. is a simple yet effective platform for users to manage an event registration process. However, researchers have identified multiple CSV injection vulnerabilities in the application, which allow attackers to carry out their malicious activities.

The injection points for this CSRF vulnerability are the First Name, Contact, and Remarks fields. By inserting malicious code via these fields, an attacker can craft an Excel file laced with arbitrary code, which the victim inadvertently executes when opening the file.

Here's a snippet of the vulnerable code found in the application

// Add Record
 public function create() {
        $qryHead = 'INSERT INTO '.$this->table_name.' '
                   .'(EventID,FirstName,LastName,Contact,Email,Remarks,Status) ' .
                   'VALUES(?,?,?,?,?,?,?) ';
        $qryData = array(
            'EventID' =>$this->EventID,
            'FirstName' =>$this->FirstName,
            'LastName' =>$this->LastName,
            'Contact' =>$this->Contact,
            'Email' =>$this->Email,
            'Remarks' =>$this->Remarks,
            'Status' =>$this->Status,
        );

For more details about this vulnerability, please refer to the following original references

- CVE-2022-44830: In-depth details of the vulnerability
- Sourcecodester Event Registration App v1. on GitHub: Original application source code repository

Potential Impact and Solutions

The implications of CVE-2022-44830 are severe, as malicious users can craft Excel files with embedded code and execute them on the victim's machine. This could lead to unauthorized access to sensitive information, data manipulation or corruption, and other potentially devastating consequences.

To mitigate the risks associated with these vulnerabilities, we recommend the following actions

1. Update to the latest version: Developers should always ensure that their users are working with the most recent release of the application, which likely contains security patches and fixes for known vulnerabilities.
2. Sanitize inputs: Developers should validate and sanitize all user input to prevent malicious code from being injected into the application.
3. Educate users: Inform users about the dangers of opening files from untrusted sources and encourage them to exercise caution when dealing with external files.

Conclusion

CVE-2022-44830 is a significant security issue affecting the Sourcecodester Event Registration App v1.. By exploiting the CSV injection vulnerabilities present in the First Name, Contact, and Remarks fields, attackers can execute arbitrary code through a crafted Excel file. It is crucial for developers and users alike to be aware of these vulnerabilities and take the necessary steps to mitigate their impact.

Stay updated with the latest security news and advisories to ensure the highest level of security for your applications and systems.

Timeline

Published on: 11/21/2022 18:15:00 UTC
Last modified on: 11/23/2022 15:01:00 UTC