CVE-2019-5420

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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

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CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

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CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://weblog.rubyonrails.org/2019/3/13/Rails-4-2-5-1-5-1-6-2-have-been-released/	Patch Vendor Advisory
https://groups.google.com/forum/#!topic/rubyonrails-security/IsQKvDqZdKw	Mitigation Patch Third Party Advisory
http://packetstormsecurity.com/files/152704/Ruby-On-Rails-DoubleTap-Development-Mode-secret_key_base-Remote-Code-Execution.html	Exploit Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/46785/	Exploit Third Party Advisory VDB Entry
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Y43636TH4D6T46IC6N2RQVJTRFJAAYGA/	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:rubyonrails:rails:6.0.0:beta1::::::
	cpe:2.3:a:rubyonrails:rails::::::::
	cpe:2.3:a:rubyonrails:rails:6.0.0:beta2::::::

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:fedoraproject:fedora:30:::::::*

Information

Published : 2019-03-27 07:29

Updated : 2021-11-03 11:19

NVD link : CVE-2019-5420

Mitre link : CVE-2019-5420

JSON object : View

CWE

CWE-330

Use of Insufficiently Random Values

Products Affected

debian

debian_linux

rubyonrails

rails

fedoraproject

fedora

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