CVE-2019-5420

highPriorität · handeln · 80OT-Risiko · kritischEPSS 0.893 · 100. PerzentilExploit · waffenfähigDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

14 exploits · waffenfähig

Likely / severe?

89.3% (100th) EPSS

CVSS 7.5 · high

Is it mine?

16 products

Prüfe deine Angriffsfläche

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · bewertet 2026-10-22

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

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

9.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 5.9

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.18.1highAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-330USprimärCWE-330USCWE-338USCWE-77USCWE-77US

Exploits (14)

Öffentlicher Proof-of-Concept- und Exploit-Code.

exploit/multi/http/rails_double_tapRuby On Rails DoubleTap Development Mode secret_key_base Vulnerabilitywaffenfähig · metasploit
EDB-46785Ruby On Rails - DoubleTap Development Mode secret_key_base Remote Code Execution (Metasploit)funktional · exploit_db
AnasTaoutaou/CVE-2019-5420AnasTaoutaou/CVE-2019-5420PoC · poc_in_github
Eremiel/CVE-2019-5420Eremiel/CVE-2019-5420PoC · poc_in_github
PenTestical/CVE-2019-5420 Exploit in Rails Development Mode. With some knowledge of a target application it is possible for 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.PoC · poc_in_github
WildWestCyberSecurity/cve-2019-5420-POCcve-2019-5420 POC simple ruby scriptPoC · poc_in_github

betroffene Produkte (16)

Betroffene Produkte und Versionsbereiche.

Open Source Ruby on Rails <5.2.2.1alle Versionencert_bundDE
Open Source Ruby on Rails <6.0.0.beta3alle Versionencert_bundDE
Red Hat Enterprise Linuxalle Versionencert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxalle Versionencert_bundDEcpe:/o:suse:suse_linux:-
Ubuntu Linuxalle Versionencert_bundDEcpe:/o:canonical:ubuntu_linux:-
Open Source Ruby on Rails< 5.2.2.1cert_bundDE
Open Source Ruby on Rails< 6.0.0.beta3cert_bundDE
rails https://github.com/rails/rails≤ 6.0.0.beta3enisa_euvdEU
rails https://github.com/rails/rails≤ 5.2.2.1enisa_euvdEU
Rails Core Team Ruby on Rails5.2.0 → 5.2.2.1fstec_bduRU
Rails Core Team Ruby on Rails6.0.0 → 6.0.0.beta3fstec_bduRU
debian debian linux= 8.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
fedoraproject fedora= 30nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
rubyonrails rails< 5.2.2.1nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
rubyonrails rails= 6.0.0nvdUScpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
RubyGems railties5.2.0 → 5.2.2.1osvUSpkg:gem/railties

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

WID-SEC-W-2025-1467Ruby on Rails: Mehrere SchwachstellenDeutsch2019-03-13csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Ruby on Rails ausnutzen, um Informationen offenzulegen, einen Denial of Service Zustand hervorzurufen oder beliebigen Programmcode auszuführen.
GHSA-m42h-mh85-4qgcUse of Insufficiently Random Values in Railties Allows Remote Code Execution2019-03-13ghsa · osvUS
# Possible Remote Code Execution Exploit in Rails Development Mode Impact ------ With some knowledge of a target application it is possible for 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. All users running an affected release should either upgrade or use one of the workarounds immediately. Releases -------- The 6.0.0.beta3 and 5.2.2.1 releases are available at the normal locations. Workarounds ----------- This issue can be mitigated by specifying a secret key in development mode. In "config/environments/development.rb" add this: ``` config.secret_key_base = SecureRandom.hex(64) ``` Please note that only the 5.2.x, 5.1.x, 5.0.x, and 4.2.x series are supported at present. Users of earlier unsupported releases are advised to upgrade as soon as possible as we cannot guarantee the continued availability of security fixes for unsupported releases. Credits ------- Thanks to ooooooo_q

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu cert_bund nvd osv NVD CVE.org MITRE

veröffentlicht 2019-03-27geändert 2026-10-14

verwandt (568)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2021-34646US	critical9.8OT hoch	50.9% (99th)	Exploit	2021-08-30
Versions up to, and including, 5.4.3, of the Booster for WooCommerce WordPress plugin are vulnerable to authentication bypass via the process_email_verification function due to a r…
CVE-2018-17888US	critical9.8OT hoch	29.6% (98th)	Exploit	2018-10-12
NUUO CMS all versions 3.1 and prior, The application uses a session identification mechanism that could allow attackers to obtain the active session ID, which could allow arbitrary…
CVE-2017-6026US	critical9.1OT hoch	31.8% (98th)	Exploit	2017-06-30
A Use of Insufficiently Random Values issue was discovered in Schneider Electric Modicon PLCs Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware…
CVE-2022-36536US	critical9.8OT hoch	4.85% (92nd)	Exploit	2022-09-16
An issue in the component post_applogin.php of Super Flexible Software GmbH & Co. KG Syncovery 9 for Linux v9.47x and below allows attackers to escalate privileges via creating cra…
CVE-2020-11901US	critical9.0OT erhöht	21.1% (98th)	—	2020-06-17
The Treck TCP/IP stack before 6.0.1.66 allows Remote Code execution via a single invalid DNS response.

+563 weitere

Referenzen (26)

Externe Belege — Patches, Meldungen, Analysen.

scry

Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.

Kostenloser Scan