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Vulnerabilities

CVE-2021-33564 Detail

Modified After Enrichment

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

Description

An argument injection vulnerability in the Dragonfly gem before 1.4.0 for Ruby allows remote attackers to read and write to arbitrary files via a crafted URL when the verify_url option is disabled. This may lead to code execution. The problem occurs because the generate and process features mishandle use of the ImageMagick convert utility.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

👁 NIST CVSS score

NIST: NVD

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/markevans/dragonfly/commit/25399297bb457f7fcf8e3f91e85945b255b111b5	CVE, MITRE	Patch Third Party Advisory
https://github.com/markevans/dragonfly/compare/v1.3.0...v1.4.0	CVE, MITRE	Patch Third Party Advisory
https://github.com/markevans/dragonfly/issues/513	CVE, MITRE	Issue Tracking Third Party Advisory
https://github.com/mlr0p/CVE-2021-33564	CVE, MITRE	Exploit Third Party Advisory
https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/master/cves/2021/CVE-2021-33564.yaml	CVE, MITRE	Exploit Third Party Advisory
https://zxsecurity.co.nz/research/argunment-injection-ruby-dragonfly/	CVE, MITRE	Exploit Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-88	Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')	👁 cwe source acceptance level NIST

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

Initial Analysis by NIST 6/10/2021 11:20:26 AM

Action	Type	Old Value	New Value
Added	CVSS V3.1	NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added	CVSS V2	NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Added	CWE	NIST CWE-88
Added	CPE Configuration	OR cpe:2.3:a:dragonfly_project:dragonfly::::::ruby:: versions up to (excluding) 1.4.0
Changed	Reference Type	https://github.com/markevans/dragonfly/commit/25399297bb457f7fcf8e3f91e85945b255b111b5 No Types Assigned	https://github.com/markevans/dragonfly/commit/25399297bb457f7fcf8e3f91e85945b255b111b5 Patch, Third Party Advisory
Changed	Reference Type	https://github.com/markevans/dragonfly/compare/v1.3.0...v1.4.0 No Types Assigned	https://github.com/markevans/dragonfly/compare/v1.3.0...v1.4.0 Patch, Third Party Advisory
Changed	Reference Type	https://github.com/markevans/dragonfly/issues/513 No Types Assigned	https://github.com/markevans/dragonfly/issues/513 Issue Tracking, Third Party Advisory
Changed	Reference Type	https://github.com/mlr0p/CVE-2021-33564 No Types Assigned	https://github.com/mlr0p/CVE-2021-33564 Exploit, Third Party Advisory
Changed	Reference Type	https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/master/cves/2021/CVE-2021-33564.yaml No Types Assigned	https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/master/cves/2021/CVE-2021-33564.yaml Exploit, Third Party Advisory
Changed	Reference Type	https://zxsecurity.co.nz/research/argunment-injection-ruby-dragonfly/ No Types Assigned	https://zxsecurity.co.nz/research/argunment-injection-ruby-dragonfly/ Exploit, Third Party Advisory

Quick Info

CVE Dictionary Entry:
CVE-2021-33564
NVD Published Date:
05/29/2021
NVD Last Modified:
06/16/2026
Source:
MITRE

URL: https://nvd.nist.gov/vuln/detail/CVE-2021-33564

⇱ NVD - CVE-2021-33564