Vulnerability in Jtdowney Private Address Check Ruby Gem
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.024 (83.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.024 · change: +0.002
Affected products
- Jtdowney Private Address Check Ruby Gem — versions Versions before 0.4.0
- Private Address Check Project
Weakness classification (CWE)
References
- hackerone.com/reports/287245 (Patch, Third Party Advisory, Mitigation, Issue Tracking)
- edoverflow.com/2017/ruby-resolv-bug/ (Third Party Advisory, Issue Tracking)
- github.com/jtdowney/private_address_check/issues/1 (Third Party Advisory, Issue Tracking)
- hackerone.com/reports/287835 (Permissions Required, Third Party Advisory)
- github.com/jtdowney/private_address_check/commit/58a0d7fe31de339c0117160567a5b3… (Third Party Advisory)
Frequently asked questions
- What is CVE-2017-0904?
- CVE-2017-0904 is a high-severity vulnerability in Jtdowney Private Address Check Ruby Gem, classified under CWE-242. CVSS score: 8.1/10. Published 2017-11-13.
- How severe is CVE-2017-0904?
- High severity. CVSS v3 base score is 8.1 out of 10.