CVE-2021-33564 : An argument injection vulnerability in the Dragonfly gem before 1.4.0 for Ruby a

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.

Published 2021-05-29 14:15:09

Updated 2021-06-10 15:20:26

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2021-33564

Dragonfly Project » Dragonfly » For Ruby
Versions before (<) 1.4.0
cpe:2.3:a:dragonfly_project:dragonfly:*:*:*:*:*:ruby:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-33564

EPSS FAQ

5.09%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 93 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-33564

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2021-33564

CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-33564

https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/master/cves/2021/CVE-2021-33564.yaml

Exploit;Third Party Advisory
https://github.com/markevans/dragonfly/compare/v1.3.0...v1.4.0

Comparing v1.3.0...v1.4.0 · markevans/dragonfly · GitHub
Patch;Third Party Advisory
https://github.com/markevans/dragonfly/issues/513

Security Issue Report · Issue #513 · markevans/dragonfly · GitHub
Issue Tracking;Third Party Advisory

CVEs referencing this url
https://github.com/mlr0p/CVE-2021-33564

GitHub - mlr0p/CVE-2021-33564: Argument Injection in Dragonfly Ruby Gem
Exploit;Third Party Advisory
https://zxsecurity.co.nz/research/argunment-injection-ruby-dragonfly/

CVE-2021-33564 Argument Injection in Ruby Dragonfly | ZX Security
Exploit;Third Party Advisory
https://github.com/markevans/dragonfly/commit/25399297bb457f7fcf8e3f91e85945b255b111b5

Merge branch 'better-security' · markevans/dragonfly@2539929 · GitHub
Patch;Third Party Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2021-33564

Products affected by CVE-2021-33564

Exploit prediction scoring system (EPSS) score for CVE-2021-33564

CVSS scores for CVE-2021-33564

CWE ids for CVE-2021-33564

References for CVE-2021-33564