RCE in Rails Https://github.com/rails/rails
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…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.921 (99.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Rails Https://github.com/rails/rails — versions 5.2.2.1, 6.0.0.beta3
- Rubyonrails Rails — versions 6.0.0
- Debian Debian_linux — versions 8.0
- Fedoraproject Fedora — versions 30
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support@hackerone.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- support@hackerone.com (x_refsource_CONFIRM)
- support@hackerone.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- support@hackerone.com (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
- support@hackerone.com (x_refsource_FEDORA, vendor-advisory)
Frequently asked questions
- What is CVE-2019-5420?
- CVE-2019-5420 is a critical-severity vulnerability in Rails Https://github.com/rails/rails, classified under Command Injection. CVSS score: 9.8/10. Published 2019-03-27.
- How severe is CVE-2019-5420?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-5420 known to be exploited?
- 43 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.