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CVE-2021-33473 — Arbitrary file write in dragonfly — CVE Details

CRITICAL

Arbitrary file write in dragonfly

Published June 3, 2022Updated February 21, 2024Source: osv

Summary

An argument injection vulnerability in Dragonfly Ruby Gem v1.3.0 allows attackers to read and write arbitrary files when the verify_url option is disabled. This vulnerability is exploited via a crafted URL.

Advisory Timeline

  • First published June 3, 2022 (1592 days ago).
  • Last revised February 21, 2024 — 628 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Bundler
Update dragonfly to 1.4.0 or later
gem install dragonfly -v 1.4.0

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: rubygems (1).

PackageEcosystemAffectedFixed In
dragonfly
rubygems
0.1.0, 0.1.1, 0.1.4, 0.1.5 (+76 more)1.4.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.1 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

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

References

Frequently Asked Questions

What is CVE-2021-33473?
Arbitrary file write in dragonfly This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.1/10).
How do I check if my project is affected by CVE-2021-33473?
CVE-2021-33473 affects dragonfly. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-33473 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.1

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-fj34-jhjx-xmvv

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  • CVE-2021-33564
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