CVE-2021-22964
Description
A redirect vulnerability in the `fastify-static` module version >= 4.2.4 and < 4.4.1 allows remote attackers to redirect Mozilla Firefox users to arbitrary websites via a double slash `//` followed by a domain: `http://localhost:3000//a//youtube.com/%2e%2e%2f%2e%2e`.A DOS vulnerability is possible if the URL contains invalid characters `curl --path-as-is "http://localhost:3000//^/.."`The issue shows up on all the `fastify-static` applications that set `redirect: true` option. By default, it is `false`.
CvssV3 impact
BaseSeverity | HIGH |
ConfidentialityImpact | LOW |
AttackComplexity | LOW |
Scope | CHANGED |
AttackVector | NETWORK |
AvailabilityImpact | HIGH |
IntegrityImpact | LOW |
PrivilegesRequired | NONE |
BaseScore | 8.8 |
VectorString | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:H |
Version | 3.1 |
UserInteraction | REQUIRED |
CvssV2 impact
AccessComplexity | MEDIUM |
ConfidentialityImpact | PARTIAL |
AvailabilityImpact | PARTIAL |
IntegrityImpact | PARTIAL |
BaseScore | 6.8 |
VectorString | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Version | 2.0 |
AccessVector | NETWORK |
Authentication | NONE |