CVE-2021-21288 Information

Description

CarrierWave is an open-source RubyGem which provides a simple and flexible way to upload files from Ruby applications. In CarrierWave before versions 1.3.2 and 2.1.1 the download feature has an SSRF vulnerability allowing attacks to provide DNS entries or IP addresses that are intended for internal use and gather information about the Intranet infrastructure of the platform. This is fixed in versions 1.3.2 and 2.1.1.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Reference

https://rubygems.org/gems/carrierwave/ https://github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.md#211—2021-02-08 https://github.com/carrierwaveuploader/carrierwave/commit/012702eb3ba1663452aa025831caa304d1a665c0 https://github.com/carrierwaveuploader/carrierwave/security/advisories/GHSA-fwcm-636p-68r5 https://github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.md#132—2021-02-08

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

4.3