VULNERABILITY INTELLIGENCE

CVE-2017-0904

CVSS score8.1 HIGH

EPSS probability2.42%

CISA KEVNot currently listed

Published2017-11-13

Last modified2026-06-17

CVSS vectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The private_address_check ruby gem before 0.4.0 is vulnerable to a bypass due to use of Ruby's Resolv.getaddresses method, which is OS-dependent and should not be relied upon for security measures, such as when used to blacklist private network addresses to prevent server-side request forgery.

Weakness classification

CWE-242: Use of Inherently Dangerous Function
CWE-755: Improper Handling of Exceptional Conditions

Primary references

support@hackerone.com — Issue Tracking, Third Party Advisory
support@hackerone.com — Third Party Advisory
support@hackerone.com — Issue Tracking, Third Party Advisory
support@hackerone.com — Issue Tracking, Mitigation, Patch, Third Party Advisory
support@hackerone.com — Permissions Required, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Mitigation, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Permissions Required, Third Party Advisory