Vulnerabilities > CVE-2021-22963 - Open Redirect vulnerability in Fastify Fastify-Static

CVSS 6.1 - MEDIUM

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

LOW

Integrity impact

LOW

Availability impact

NONE

network

low complexity

fastify

CWE-601

NVD

Published: 2021-10-14

Updated: 2021-10-20

Summary

A redirect vulnerability in the fastify-static module version < 4.2.4 allows remote attackers to redirect 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.

Vulnerable Configurations

Part	Description	Count
Application	Fastify Fastify Fastify Static - Fastify Fastify Static 0.1.0 Fastify Fastify Static 0.2.0 Fastify Fastify Static 0.2.1 Fastify Fastify Static 0.3.0 Fastify Fastify Static 0.4.0 Fastify Fastify Static 0.4.1 Fastify Fastify Static 0.5.0 Fastify Fastify Static 0.6.0 Fastify Fastify Static 0.8.0 Fastify Fastify Static 0.9.0 Fastify Fastify Static 0.10.0 Fastify Fastify Static 0.11.0 Fastify Fastify Static 0.12.0 Fastify Fastify Static 0.13.0 Fastify Fastify Static 0.14.0 Fastify Fastify Static 1.0.0 Fastify Fastify Static 1.1.0 Fastify Fastify Static 2.0.0 Fastify Fastify Static 2.1.0 Fastify Fastify Static 2.2.0 Fastify Fastify Static 2.3.0 Fastify Fastify Static 2.3.1 Fastify Fastify Static 2.3.2 Fastify Fastify Static 2.3.3 Fastify Fastify Static 2.3.4 Fastify Fastify Static 2.4.0 Fastify Fastify Static 2.5.0 Fastify Fastify Static 2.5.1 Fastify Fastify Static 2.6.0 Fastify Fastify Static 2.7.0 Fastify Fastify Static 3.0.0 Fastify Fastify Static 3.0.1 Fastify Fastify Static 3.1.0 Fastify Fastify Static 3.2.0 Fastify Fastify Static 3.2.1 Fastify Fastify Static 3.3.0 Fastify Fastify Static 3.3.1 Fastify Fastify Static 3.4.0 Fastify Fastify Static 3.5.0 Fastify Fastify Static 4.0.0 Fastify Fastify Static 4.0.1 Fastify Fastify Static 4.1.0 Fastify Fastify Static 4.2.0 Fastify Fastify Static 4.2.1 Fastify Fastify Static 4.2.2 Fastify Fastify Static 4.2.3	47

Common Weakness Enumeration (CWE)

CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Common Attack Pattern Enumeration and Classification (CAPEC)

Fake the Source of Data
An adversary provides data under a falsified identity. The purpose of using the falsified identity may be to prevent traceability of the provided data or it might be an attempt by the adversary to assume the rights granted to another identity. One of the simplest forms of this attack would be the creation of an email message with a modified "From" field in order to appear that the message was sent from someone other than the actual sender. Results of the attack vary depending on the details of the attack, but common results include privilege escalation, obfuscation of other attacks, and data corruption/manipulation.

References

https://hackerone.com/reports/1354255