Ruby/railties/5.2.2

Rails internals: application bootup, plugins, generators, and rake tasks.

Repo Link: https://rubygems.org/gems/railties
License: MIT

2 Security Vulnerabilities

Use of Insufficiently Random Values in Railties Allows Remote Code Execution

Published date: 2019-03-13T17:28:35Z

CVE: CVE-2019-5420

Links:

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

Affected versions: ["5.2.2", "5.2.2.rc1", "5.2.1.1", "5.2.0", "5.2.1", "5.2.1.rc1"]

Secure versions: [3.0.0, 3.0.0.beta, 3.0.0.beta2, 3.0.0.beta3, 3.0.0.beta4, 3.0.0.rc, 3.0.0.rc2, 3.0.1, 3.0.10, 3.0.10.rc1, 3.0.11, 3.0.12, 3.0.12.rc1, 3.0.13, 3.0.13.rc1, 3.0.14, 3.0.15, 3.0.16, 3.0.17, 3.0.18, 3.0.19, 3.0.2, 3.0.20, 3.0.3, 3.0.4, 3.0.4.rc1, 3.0.5, 3.0.5.rc1, 3.0.6, 3.0.6.rc1, 3.0.6.rc2, 3.0.7, 3.0.7.rc1, 3.0.7.rc2, 3.0.8, 3.0.8.rc1, 3.0.8.rc2, 3.0.8.rc4, 3.0.9, 3.0.9.rc1, 3.0.9.rc3, 3.0.9.rc4, 3.0.9.rc5, 3.1.0, 3.1.0.beta1, 3.1.0.rc1, 3.1.0.rc2, 3.1.0.rc3, 3.1.0.rc4, 3.1.0.rc5, 3.1.0.rc6, 3.1.0.rc8, 3.1.1, 3.1.1.rc1, 3.1.1.rc2, 3.1.1.rc3, 3.1.10, 3.1.11, 3.1.12, 3.1.2, 3.1.2.rc1, 3.1.2.rc2, 3.1.3, 3.1.4, 3.1.4.rc1, 3.1.5, 3.1.5.rc1, 3.1.6, 3.1.7, 3.1.8, 3.1.9, 3.2.0, 3.2.0.rc1, 3.2.0.rc2, 3.2.1, 3.2.10, 3.2.11, 3.2.12, 3.2.13, 3.2.13.rc1, 3.2.13.rc2, 3.2.14, 3.2.14.rc1, 3.2.14.rc2, 3.2.15, 3.2.15.rc1, 3.2.15.rc2, 3.2.15.rc3, 3.2.16, 3.2.17, 3.2.18, 3.2.19, 3.2.2, 3.2.2.rc1, 3.2.20, 3.2.21, 3.2.22, 3.2.22.1, 3.2.22.2, 3.2.22.3, 3.2.22.4, 3.2.22.5, 3.2.3, 3.2.3.rc1, 3.2.3.rc2, 3.2.4, 3.2.4.rc1, 3.2.5, 3.2.6, 3.2.7, 3.2.7.rc1, 3.2.8, 3.2.8.rc1, 3.2.8.rc2, 3.2.9, 3.2.9.rc1, 3.2.9.rc2, 3.2.9.rc3, 4.0.0, 4.0.0.beta1, 4.0.0.rc1, 4.0.0.rc2, 4.0.1, 4.0.1.rc1, 4.0.1.rc2, 4.0.1.rc3, 4.0.1.rc4, 4.0.10, 4.0.10.rc1, 4.0.10.rc2, 4.0.11, 4.0.11.1, 4.0.12, 4.0.13, 4.0.13.rc1, 4.0.2, 4.0.3, 4.0.4, 4.0.4.rc1, 4.0.5, 4.0.6, 4.0.6.rc1, 4.0.6.rc2, 4.0.6.rc3, 4.0.7, 4.0.8, 4.0.9, 4.1.0, 4.1.0.beta1, 4.1.0.beta2, 4.1.0.rc1, 4.1.0.rc2, 4.1.1, 4.1.10, 4.1.10.rc1, 4.1.10.rc2, 4.1.10.rc3, 4.1.10.rc4, 4.1.11, 4.1.12, 4.1.12.rc1, 4.1.13, 4.1.13.rc1, 4.1.14, 4.1.14.1, 4.1.14.2, 4.1.14.rc1, 4.1.14.rc2, 4.1.15, 4.1.15.rc1, 4.1.16, 4.1.16.rc1, 4.1.2, 4.1.2.rc1, 4.1.2.rc2, 4.1.2.rc3, 4.1.3, 4.1.4, 4.1.5, 4.1.6, 4.1.6.rc1, 4.1.6.rc2, 4.1.7, 4.1.7.1, 4.1.8, 4.1.9, 4.1.9.rc1, 4.2.0, 4.2.0.beta1, 4.2.0.beta2, 4.2.0.beta3, 4.2.0.beta4, 4.2.0.rc1, 4.2.0.rc2, 4.2.0.rc3, 4.2.1, 4.2.1.rc1, 4.2.1.rc2, 4.2.1.rc3, 4.2.1.rc4, 4.2.10, 4.2.10.rc1, 4.2.11, 4.2.11.1, 4.2.11.2, 4.2.11.3, 4.2.2, 4.2.3, 4.2.3.rc1, 4.2.4, 4.2.4.rc1, 4.2.5, 4.2.5.1, 4.2.5.2, 4.2.5.rc1, 4.2.5.rc2, 4.2.6, 4.2.6.rc1, 4.2.7, 4.2.7.1, 4.2.7.rc1, 4.2.8, 4.2.8.rc1, 4.2.9, 4.2.9.rc1, 4.2.9.rc2, 5.0.0, 5.0.0.1, 5.0.0.beta1, 5.0.0.beta1.1, 5.0.0.beta2, 5.0.0.beta3, 5.0.0.beta4, 5.0.0.racecar1, 5.0.0.rc1, 5.0.0.rc2, 5.0.1, 5.0.1.rc1, 5.0.1.rc2, 5.0.2, 5.0.2.rc1, 5.0.3, 5.0.4, 5.0.4.rc1, 5.0.5, 5.0.5.rc1, 5.0.5.rc2, 5.0.6, 5.0.6.rc1, 5.0.7, 5.0.7.1, 5.0.7.2, 5.1.0, 5.1.0.beta1, 5.1.0.rc1, 5.1.0.rc2, 5.1.1, 5.1.2, 5.1.2.rc1, 5.1.3, 5.1.3.rc1, 5.1.3.rc2, 5.1.3.rc3, 5.1.4, 5.1.4.rc1, 5.1.5, 5.1.5.rc1, 5.1.6, 5.1.6.1, 5.1.6.2, 5.1.7, 5.1.7.rc1, 5.2.0.beta1, 5.2.0.beta2, 5.2.0.rc1, 5.2.0.rc2, 5.2.2.1, 5.2.3, 5.2.3.rc1, 5.2.4, 5.2.4.1, 5.2.4.2, 5.2.4.3, 5.2.4.4, 5.2.4.5, 5.2.4.6, 5.2.4.rc1, 5.2.5, 5.2.6, 5.2.6.1, 5.2.6.2, 5.2.6.3, 5.2.7, 5.2.7.1, 5.2.8, 5.2.8.1, 6.0.0, 6.0.0.beta3, 6.0.0.rc1, 6.0.0.rc2, 6.0.1, 6.0.1.rc1, 6.0.2, 6.0.2.1, 6.0.2.2, 6.0.2.rc1, 6.0.2.rc2, 6.0.3, 6.0.3.1, 6.0.3.2, 6.0.3.3, 6.0.3.4, 6.0.3.5, 6.0.3.6, 6.0.3.7, 6.0.3.rc1, 6.0.4, 6.0.4.1, 6.0.4.2, 6.0.4.3, 6.0.4.4, 6.0.4.5, 6.0.4.6, 6.0.4.7, 6.0.4.8, 6.0.5, 6.0.5.1, 6.0.6, 6.0.6.1, 6.1.0, 6.1.0.rc1, 6.1.0.rc2, 6.1.1, 6.1.2, 6.1.2.1, 6.1.3, 6.1.3.1, 6.1.3.2, 6.1.4, 6.1.4.1, 6.1.4.2, 6.1.4.3, 6.1.4.4, 6.1.4.5, 6.1.4.6, 6.1.4.7, 6.1.5, 6.1.5.1, 6.1.6, 6.1.6.1, 6.1.7, 6.1.7.1, 6.1.7.10, 6.1.7.2, 6.1.7.3, 6.1.7.4, 6.1.7.5, 6.1.7.6, 6.1.7.7, 6.1.7.8, 6.1.7.9, 7.0.0, 7.0.0.alpha1, 7.0.0.alpha2, 7.0.0.rc1, 7.0.0.rc2, 7.0.0.rc3, 7.0.1, 7.0.2, 7.0.2.1, 7.0.2.2, 7.0.2.3, 7.0.2.4, 7.0.3, 7.0.3.1, 7.0.4, 7.0.4.1, 7.0.4.2, 7.0.4.3, 7.0.5, 7.0.5.1, 7.0.6, 7.0.7, 7.0.7.1, 7.0.7.2, 7.0.8, 7.0.8.1, 7.0.8.2, 7.0.8.3, 7.0.8.4, 7.0.8.5, 7.0.8.6, 7.0.8.7, 7.1.0, 7.1.0.beta1, 7.1.0.rc1, 7.1.0.rc2, 7.1.1, 7.1.2, 7.1.3, 7.1.3.1, 7.1.3.2, 7.1.3.3, 7.1.3.4, 7.1.4, 7.1.4.1, 7.1.4.2, 7.1.5, 7.1.5.1, 7.2.0, 7.2.0.beta1, 7.2.0.beta2, 7.2.0.beta3, 7.2.0.rc1, 7.2.1, 7.2.1.1, 7.2.1.2, 7.2.2, 7.2.2.1, 8.0.0, 8.0.0.1, 8.0.0.beta1, 8.0.0.rc1, 8.0.0.rc2, 8.0.1, 8.0.2]

Recommendation: Update to version 8.0.2.

Possible Remote Code Execution Exploit in Rails Development Mode

Published date: 2019-03-13

Framework: rails

CVE: 2019-5420

CVSS V3: 9.8

Links:

https://groups.google.com/forum/#!topic/rubyonrails-security/IsQKvDqZdKw

There is a possible a possible remote code executing exploit in Rails when in development mode. This vulnerability has been assigned the CVE identifier CVE-2019-5420.

Versions Affected: 6.0.0.X, 5.2.X. Not affected: < 5.2.0 Fixed Versions: 6.0.0.beta3, 5.2.2.1