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VULNERABILITIES

CVE-2019-5420 Details

Description

A remote code execution vulnerability in development mode Rails <5.2.2.1, <6.0.0.beta3 can allow an attacker to guess the automatically generated development mode secret token. This secret token can be used in combination with other Rails internals to escalate to a remote code execution exploit.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
http://packetstormsecurity.com/files/152704/Ruby-On-Rails-DoubleTap-Development-Mode-secret_key_base-Remote-Code-Execution.html CVEExploitThird Party AdvisoryVDB Entry
https://groups.google.com/forum/#%21topic/rubyonrails-security/IsQKvDqZdKw CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y43636TH4D6T46IC6N2RQVJTRFJAAYGA/ CVE
https://weblog.rubyonrails.org/2019/3/13/Rails-4-2-5-1-5-1-6-2-have-been-released/ CVEPatchVendor Advisory
https://www.exploit-db.com/exploits/46785/ CVEExploitThird Party AdvisoryVDB Entry

see all 10 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-330Use of Insufficiently Random Values[email protected]
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')[email protected]

Affected Products

ProductVersions
rubyonrails rails
< 5.2.2.1
6.0.0 beta1
6.0.0 beta2

CPE

  • cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
  • cpe:2.3:a:rubyonrails:rails:6.0.0:beta1:*:*:*:*:*:*
  • cpe:2.3:a:rubyonrails:rails:6.0.0:beta2:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
8.0

CPE

  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
fedoraproject fedora
30

CPE

  • cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

12 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2019-5420
NVD Published Date:
Mar 27, 2019
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2019-5420 Details - Not Deferred