CVE-2021-21288: Server-side request forgery in CarrierWave
First published: Mon Feb 08 2021(Updated: )
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.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Carrierwave | <1.3.2 | |
| Carrierwave | >=2.0.1<2.1.1 |
Remedy
https://github.com/carrierwaveuploader/carrierwave/commit/012702eb3ba1663452aa025831caa304d1a665c0
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Reference Links
- https://github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.md#132---2021-02-08
- 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://rubygems.org/gems/carrierwave/
Frequently Asked Questions
What is CVE-2021-21288?
CVE-2021-21288 is a vulnerability in CarrierWave, an open-source RubyGem, that allows for server-side request forgery (SSRF).
What is the severity of CVE-2021-21288?
The severity of CVE-2021-21288 is medium with a CVSS score of 4.3.
How does CVE-2021-21288 affect CarrierWave?
CVE-2021-21288 affects CarrierWave versions 1.3.2 and 2.1.1, allowing attacks to provide DNS entries or IP addresses intended for internal networks.
How can I fix CVE-2021-21288?
To fix CVE-2021-21288, upgrade to CarrierWave version 1.3.2 or 2.1.1 or later.
Where can I find more information about CVE-2021-21288?
You can find more information about CVE-2021-21288 on the CarrierWave GitHub repository and the provided references.
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