PT-2022-26149 · Fastify · Fastify

Ry0Tak · Published 2022-11-21 · Updated 2022-11-26 · CVE-2022-41919

Positive Technologies (AI Summary)

CVSS v3.1

4.2

Medium

Base vector

AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Fastify versions prior to 3.29.4 Fastify versions prior to 4.10.2

Description The issue allows an attacker to bypass the Pre-Flight checking of fetch by using an incorrect Content-Type. This could potentially be used to invoke routes that only accept application/json content type, thus bypassing any CORS protection, and leading to a Cross-Site Request Forgery attack. fetch() requests with Content-Type essence as "application/x-www-form-urlencoded", "multipart/form-data", or "text/plain" are affected.

Recommendations For versions prior to 3.29.4, update to at least version 3.29.4. For versions prior to 4.10.2, update to at least version 4.10.2. As a temporary workaround, implement Cross-Site Request Forgery protection using @fastify/csrf.

Exploit

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2022-41919

GHSA-3FJJ-P79J-C9HH

Affected Products

Fastify

References · 12

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/41xxx/CVE-2022-41919.json · Exploit
• https://github.com/fastify/fastify/commit/62dde76f1f7aca76e38625fe8d983761f26e6fc9 · Patch
• https://osv.dev/vulnerability/CVE-2022-41919 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-41919 · Security Note
• https://osv.dev/vulnerability/GHSA-3fjj-p79j-c9hh · Vendor Advisory
• https://github.com/fastify/fastify · Note
• https://github.com/fastify/fastify/security/advisories/GHSA-3fjj-p79j-c9hh · Note
• https://t.me/cibsecurity/53369 · Telegram Post
• https://t.me/cvenotify/38271 · Telegram Post
• https://t.me/cvenotify/38518 · Telegram Post
• https://npmjs.com/package/@fastify/csrf · Note
• https://npmjs.com/package/%40fastify/csrf · Note