PT-2019-14649 · Hashicorp · Consul Ruby Gem

Kratob · Published 2019-09-23 · Updated 2020-08-24 · CVE-2019-16377

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions consul ruby gem versions prior to 1.0.3

Description The issue is related to Incorrect Access Control in the consul ruby gem. Specifically, when a controller checks multiple powers using :if or :except conditions, these conditions are applied to all power checks in that controller, leading to skipped power checks and potentially allowing unauthenticated access to certain controller actions.

Recommendations For consul ruby gem versions prior to 1.0.3, update to version 1.0.3 or later to resolve the issue. As a temporary workaround, consider reviewing and manually validating all power checks in controllers to ensure correct access control until the update can be applied.

Exploit

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2019-16377

GHSA-8JHX-9GF4-HHF5

Affected Products

Consul Ruby Gem

References · 8

• 🔥 https://github.com/rubysec/ruby-advisory-db/blob/c26fbc13435b8be448ad59131428538049d165e4/gems/consul/CVE-2019-16377.yml · Exploit
• 🔥 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/consul/CVE-2019-16377.yml · Exploit
• 🔥 https://github.com/makandra/consul/issues/49 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2019-16377 · Security Note
• https://osv.dev/vulnerability/CVE-2019-16377 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-8jhx-9gf4-hhf5 · Vendor Advisory
• https://github.com/makandra/consul · Note
• https://rubygems.org/gems/consul · Note