Server-Side Request Forgery Bypass in Private Address Check Ruby Gem by JTDowney
CVE-2017-0909

9.8CRITICAL

Key Information:

Vendor

Hackerone

Status
Private Address Check Ruby Gem
Vendor
CVE Published:
16 November 2017

What is CVE-2017-0909?

The Private Address Check Ruby gem prior to version 0.4.1 is susceptible to a bypass vulnerability. This issue arises from an inadequate blacklist of standard private and local network addresses, which are intended to prevent server-side request forgery (SSRF). Exploiting this flaw could lead to unauthorized access and manipulation of internal resources, posing significant risks to systems that rely on this gem for safeguarding against SSRF threats.

Affected Version(s)

private_address_check ruby gem Versions before 0.4.1

References

https://hackerone.com/reports/288950
x_refsource_MISC
https://github.com/jtdowney/private_address_check/pull/3
x_refsource_CONFIRM

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2017-0909 : Server-Side Request Forgery Bypass in Private Address Check Ruby Gem by JTDowney