Vulnerability Details CVE-2021-29624
fastify-csrf is an open-source plugin helps developers protect their Fastify server against CSRF attacks. Versions of fastify-csrf prior to 3.1.0 have a "double submit" mechanism using cookies with an application deployed across multiple subdomains, e.g. "heroku"-style platform as a service. Version 3.1.0 of the fastify-csrf fixes it. the vulnerability. The user of the module would need to supply a `userInfo` when generating the CSRF token to fully implement the protection on their end. This is needed only for applications hosted on different subdomains.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 50.1%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.3
References
- https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html
- https://github.com/fastify/csrf/pull/2
- https://github.com/fastify/fastify-csrf/pull/51
- https://github.com/fastify/fastify-csrf/releases/tag/v3.1.0
- https://github.com/fastify/fastify-csrf/security/advisories/GHSA-rc4q-9m69-gqp8
- https://owasp.org/www-pdf-archive/David_Johansson-Double_Defeat_of_Double-Submit_Cookie.pdf
- https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html
- https://github.com/fastify/csrf/pull/2
- https://github.com/fastify/fastify-csrf/pull/51
- https://github.com/fastify/fastify-csrf/releases/tag/v3.1.0
- https://github.com/fastify/fastify-csrf/security/advisories/GHSA-rc4q-9m69-gqp8
- https://owasp.org/www-pdf-archive/David_Johansson-Double_Defeat_of_Double-Submit_Cookie.pdf
Products affected by CVE-2021-29624
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cpe:2.3:a:fastify:fastify-csrf:-
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cpe:2.3:a:fastify:fastify-csrf:1.0.0
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cpe:2.3:a:fastify:fastify-csrf:1.0.1
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cpe:2.3:a:fastify:fastify-csrf:1.0.2
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cpe:2.3:a:fastify:fastify-csrf:1.0.3
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cpe:2.3:a:fastify:fastify-csrf:1.0.4
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cpe:2.3:a:fastify:fastify-csrf:2.0.0
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cpe:2.3:a:fastify:fastify-csrf:3.0.0
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cpe:2.3:a:fastify:fastify-csrf:3.0.1