Fluid Attacks Database

Description

Remote code execution via user-provided local names in ActionView The is a code injection vulnerability in versions of Rails prior to 5.0.1 that would allow an attacker who controlled the locals argument of a render call to perform a RCE.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Component	Affected version	Patched versions
debian 13	rails	>=0 <2:5.2.0+dfsg-2	2:5.2.0+dfsg-2
rubygems	actionview	>=0 <4.2.11.3	4.2.11.3
debian 12	rails	>=0 <2:5.2.0+dfsg-2	2:5.2.0+dfsg-2
debian 14	rails	>=0 <2:5.2.0+dfsg-2	2:5.2.0+dfsg-2
rubygems	rails	>=0 <5.0.1	5.0.1

Aliases

1. CVE-2020-81632. NVD-2020-81633. OSV-DEBIAN-2020-81634. OSV-2020-81635. GCVE-2020-81636. SECURITY-TRACKER-CVE-2020-81637. lists.debian.org

References

1. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-8163.yaml2. https://github.com/lucasamorimca/CVE-2020-81633. https://hackerone.com/reports/3048054. https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionview/CVE-2020-8163.yml5. https://groups.google.com/forum/#!topic/rubyonrails-security/hWuKcHyoKh06. https://groups.google.com/g/rubyonrails-security/c/hWuKcHyoKh07. http://packetstormsecurity.com/files/158604/Ruby-On-Rails-5.0.1-Remote-Code-Execution.html

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