CVE-2023-29003 : Security Advisory and Response

SvelteKit has Insufficient Cross-Site Request Forgery Protection.

Understanding CVE-2023-29003

SvelteKit, a web development framework, prior to version 1.15.1 has a vulnerability that allows bypassing cross-site request forgery (CSRF) protection.

What is CVE-2023-29003?

SvelteKit offers CSRF protection but prior to version 1.15.1, this protection can be bypassed by changing the

Content-Type

header value.

The Impact of CVE-2023-29003

Exploiting this vulnerability can lead to malicious requests being submitted from third-party domains, enabling unauthorized access to user accounts.

Technical Details of CVE-2023-29003

In SvelteKit versions before 1.15.1, the CSRF protection can be easily bypassed by altering the

Content-Type

header.

Vulnerability Description

The protection mechanism is not sufficient to prevent CSRF attacks, potentially leading to account takeover.

Affected Systems and Versions

SvelteKit versions older than 1.15.1 are affected by this vulnerability.

Exploitation Mechanism

By manipulating the

Content-Type

header, attackers can forge malicious requests from external domains.

Mitigation and Prevention

SvelteKit 1.15.1 rectifies this issue by enhancing the CSRF protection mechanism.

Immediate Steps to Take

Update SvelteKit to version 1.15.1 to mitigate the CSRF bypass vulnerability.

Long-Term Security Practices

Ensure regular updates of SvelteKit and follow secure coding practices to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security patches and apply updates promptly to maintain a secure web application environment.