CVE-2021-33564
82Vexday Risk Score
Patch now. It exploitation observed by VulnCheck and has a working public exploit.
ssvc Actepss 72%
from disclosure to weapon0 days
Published on NVDMay 29
1st PoCMay 25
VulnCheck+914d
exploitation probability
72%top 1% of all CVEs
observed exploitation
yesVulnCheck
2 public exploit(s)
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.
Affected products
n/a · n/apublic PoCs found — 2
vulncheckvulncheck.com/xdb/ab038ceea606unverifiedvulncheckvulncheck.com/xdb/fff2ef4d15f5unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/markevans/dragonfly/commit/25399297bb457f7fcf8e3f91e85945b255b111b5https://github.com/markevans/dragonfly/compare/v1.3.0...v1.4.0https://github.com/markevans/dragonfly/issues/513https://github.com/mlr0p/CVE-2021-33564https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/master/cves/2021/CVE-2021-33564.yamlhttps://zxsecurity.co.nz/research/argunment-injection-ruby-dragonfly/