Vulnerability DatabaseCVE-2021-33473

CVE-2021-33473:
Ruby vulnerability analysis and mitigation

Overview

An argument injection vulnerability was discovered in Dragonfly Ruby Gem version 1.3.0 that allows attackers to read and write arbitrary files when the verify_url option is disabled (NVD). The vulnerability was identified and tracked as CVE-2021-33473, with a CVSS score of 9.1 (CRITICAL) (NetApp Security).

Technical details

The vulnerability exists in Dragonfly Ruby Gem v1.3.0 and occurs because the generate and process features mishandle the use of the ImageMagick convert utility (CVE Mitre). The vulnerability has been assigned a CVSS v3.1 base score of 9.1 (Critical) with the vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N (NetApp Security).

Impact

When successfully exploited, this vulnerability could lead to disclosure of sensitive information or addition or modification of data. The vulnerability allows attackers to read and write arbitrary files when the verify_url option is disabled (NetApp Security).

Mitigation and workarounds

The vulnerability was addressed in versions after 1.3.0. A security fix was implemented through a commit that improved security measures in the Dragonfly codebase (GitHub Commit).

Community reactions

The security issue was initially reported through GitHub's issue tracking system, where researchers reached out to the project maintainers to discuss the vulnerability (GitHub Issue).