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Sinatra vulnerable to Reflected File Download attack

High severity GitHub Reviewed Published Nov 26, 2022 in sinatra/sinatra • Updated Feb 3, 2023

Package

bundler sinatra (RubyGems)

Affected versions

>= 3.0, < 3.0.4
>= 2.0.0, < 2.2.3

Patched versions

3.0.4
2.2.3

Description

Description

An issue was discovered in Sinatra 2.0 before 2.2.3 and 3.0 before 3.0.4. An application is vulnerable to a reflected file download (RFD) attack that sets the Content-Disposition header of a response when the filename is derived from user-supplied input.

References

References

@jkowens jkowens published to sinatra/sinatra Nov 26, 2022
Published by the National Vulnerability Database Nov 28, 2022
Published to the GitHub Advisory Database Nov 30, 2022
Reviewed Nov 30, 2022
Last updated Feb 3, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS score

0.547%
(78th percentile)

Weaknesses

CVE ID

CVE-2022-45442

GHSA ID

GHSA-2x8x-jmrp-phxw

Source code

Credits

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