GHSA-FWCM-636P-68R5
Vulnerability from github – Published: 2021-02-08 19:16 – Updated: 2023-05-16 15:41
VLAI
Summary
Server-side request forgery in CarrierWave
Details
Impact
CarrierWave 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.
Patches
Workarounds
Using proper network segmentation and applying the principle of least privilege to outbound connections from application servers can reduce the severity of SSRF vulnerabilities. Ideally the vulnerable gem should run on an isolated server without access to any internal network resources or cloud metadata access.
References
Server-Side Request Forgery Prevention Cheat Sheet
For more information
If you have any questions or comments about this advisory: * Open an issue in CarrierWave repo * Email me at mit.shibuya@gmail.com
Severity
4.3 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "carrierwave"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.3.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "RubyGems",
"name": "carrierwave"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.1.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-21288"
],
"database_specific": {
"cwe_ids": [
"CWE-918"
],
"github_reviewed": true,
"github_reviewed_at": "2021-02-08T18:51:29Z",
"nvd_published_at": "2021-02-08T20:15:00Z",
"severity": "MODERATE"
},
"details": "### Impact\n[CarrierWave download feature](https://github.com/carrierwaveuploader/carrierwave#uploading-files-from-a-remote-location) 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.\n\n### Patches\nUpgrade to [2.1.1](https://rubygems.org/gems/carrierwave/versions/2.1.1) or [1.3.2](https://rubygems.org/gems/carrierwave/versions/1.3.2).\n\n### Workarounds\nUsing proper network segmentation and applying the principle of least privilege to outbound connections from application servers can reduce the severity of SSRF vulnerabilities. Ideally the vulnerable gem should run on an isolated server without access to any internal network resources or cloud metadata access.\n\n### References\n[Server-Side Request Forgery Prevention Cheat Sheet](https://cheatsheetseries.owasp.org/cheatsheets/Server_Side_Request_Forgery_Prevention_Cheat_Sheet.html)\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [CarrierWave repo](https://github.com/carrierwaveuploader/carrierwave)\n* Email me at [mit.shibuya@gmail.com](mailto:mit.shibuya@gmail.com)",
"id": "GHSA-fwcm-636p-68r5",
"modified": "2023-05-16T15:41:50Z",
"published": "2021-02-08T19:16:26Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/carrierwaveuploader/carrierwave/security/advisories/GHSA-fwcm-636p-68r5"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21288"
},
{
"type": "WEB",
"url": "https://github.com/carrierwaveuploader/carrierwave/commit/012702eb3ba1663452aa025831caa304d1a665c0"
},
{
"type": "PACKAGE",
"url": "https://github.com/carrierwaveuploader/carrierwave"
},
{
"type": "WEB",
"url": "https://github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.md#132---2021-02-08"
},
{
"type": "WEB",
"url": "https://github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.md#211---2021-02-08"
},
{
"type": "WEB",
"url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/carrierwave/CVE-2021-21288.yml"
},
{
"type": "WEB",
"url": "https://rubygems.org/gems/carrierwave"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Server-side request forgery in CarrierWave"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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