Vulnerability Details CVE-2017-0904
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.009
EPSS Ranking 74.1%
CVSS Severity
CVSS v3 Score 8.1
CVSS v2 Score 6.8
References
- https://edoverflow.com/2017/ruby-resolv-bug/
- https://github.com/jtdowney/private_address_check/commit/58a0d7fe31de339c0117160567a5b33ad82b46af
- https://github.com/jtdowney/private_address_check/issues/1
- https://hackerone.com/reports/287245
- https://hackerone.com/reports/287835
- https://edoverflow.com/2017/ruby-resolv-bug/
- https://github.com/jtdowney/private_address_check/commit/58a0d7fe31de339c0117160567a5b33ad82b46af
- https://github.com/jtdowney/private_address_check/issues/1
- https://hackerone.com/reports/287245
- https://hackerone.com/reports/287835
Products affected by CVE-2017-0904
-
cpe:2.3:a:private_address_check_project:private_address_check:0.1.0
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cpe:2.3:a:private_address_check_project:private_address_check:0.2.0
-
cpe:2.3:a:private_address_check_project:private_address_check:0.3.0