// For flags

CVE-2021-22964

 

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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`.

Una vulnerabilidad de redirección en el módulo "fastify-static" versiones posteriores a 4.2.4 incluyéndola, y anteriores a 4.4.1, permite a atacantes remotos redirigir a usuarios de Mozilla Firefox a sitios web arbitrarios por medio de una doble barra "//" seguida de un dominio: "http://localhost:3000//a//youtube.com/%2e%2e%2f%2e%2e". Es posible una vulnerabilidad de DOS si la URL contiene caracteres no válidos "curl --path-as-is "http://localhost:3000//^/.." El problema se presenta en todas las aplicaciones "fastify-static" que establecen la opción "redirect: true". Por defecto, es "false"

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-06 CVE Reserved
  • 2021-10-14 CVE Published
  • 2024-06-29 EPSS Updated
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
CAPEC
References (1)
URL Tag Source
URL Date SRC
https://hackerone.com/reports/1361804 2024-08-03
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Fastify
Search vendor "Fastify"
 Fastify-static
Search vendor "Fastify" for product "Fastify-static"
 >= 4.2.4 < 4.4.1
Search vendor "Fastify" for product "Fastify-static" and version " >= 4.2.4 < 4.4.1"
-
Affected