GitHub Advisoryadvisory · npm

GHSA-p6vg-p826-qp3v URL Redirection to Untrusted Site ('Open Redirect') in fastify-static

MEDIUM Published 2021-10-05 Modified 2021-10-21 Official page ↗
Aliases
CVE-2021-22963
Ecosystem
npm
Packages
fastify-static
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-601
Reviewed
2021-10-05

Affected packages

• npm fastify-static: < 4.2.4 → fixed in 4.2.4

Description

Impact A redirect vulnerability in the `fastify-static` module allows remote attackers to redirect Mozilla Firefox users to arbitrary websites via a double slash `//` followed by a domain: `http://localhost:3000//google.com/%2e%2e`. The issue shows up on all the `fastify-static` applications that set `redirect: true` option. By default, it is `false`. Patches The issue has been patched in `[email protected]` Workarounds If updating is not an option, you can sanitize the input URLs using the `rewriteUrl` server option. References + Bug founder: drstrnegth + hackerone Report For more information If you have any questions or comments about this advisory: • Open an issue in fastify-static • Contact the security team

Related

Alias · CVE (1)

  • CVE-2021-22963 A redirect vulnerability in the fastify-static module version < 4.2.4 allows remote attackers to redirect users to arbitrary websites via a… vulnerability

Weakness · CWE (1)

  • CWE-601 URL Redirection to Untrusted Site weakness

References