{"id":"CVE-2017-0904","aliases":["EUVD-2017-0348","GHSA-hxhj-hp9m-qwc4"],"status":"published","title":"private_address_check vulnerable to bypass of Resolv.getaddresses method","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.","severity":{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02415,"percentile":0.84256,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-242","CWE-755"],"published":"2017-11-13T17:00:00Z","modified":"2026-10-20T10:48:06Z","fixes":[{"ecosystem":"RubyGems","package":"private_address_check","fixed_in":["0.4.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"RubyGems","package":"private_address_check","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.0"}]}]},{"source":"osv","ecosystem":"RubyGems","package":"private_address_check","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.0"}]}],"versions":["0.1.0","0.2.0","0.3.0"]}],"products":[{"vendor":"hackerone","product":"private_address_check ruby gem"},{"vendor":"jtdowney","product":"private_address_check ruby gem"},{"vendor":"private_address_check_project","product":"private_address_check"}],"references":[{"url":"https://hackerone.com/reports/287245","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Mitigation","Patch","Third Party Advisory","fix","web"]},{"url":"https://edoverflow.com/2017/ruby-resolv-bug/","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://github.com/jtdowney/private_address_check/issues/1","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Third Party Advisory","report","web"]},{"url":"https://hackerone.com/reports/287835","tags":["x_refsource_MISC","x_transferred","Permissions Required","Third Party Advisory","report","web"]},{"url":"https://github.com/jtdowney/private_address_check/commit/58a0d7fe31de339c0117160567a5b33ad82b46af","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-0904","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-hxhj-hp9m-qwc4"},{"url":"https://edoverflow.com/2017/ruby-resolv-bug","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2017-0904","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.","status":"published","published":"2017-11-13T17:00:00Z","modified":"2024-09-17T01:56:09.414Z","cwes":["CWE-242"],"updated_at":"2026-11-02T14:33:22.381225Z"}],"euvd":[{"id":"EUVD-2017-0348","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.","status":"published","published":"2017-11-13T17:00:00Z","modified":"2024-09-17T01:56:09Z","updated_at":"2026-11-03T00:28:45.29969Z"}],"ghsa":[{"id":"GHSA-hxhj-hp9m-qwc4","title":"private_address_check vulnerable to bypass of Resolv.getaddresses method","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.","status":"published","published":"2017-11-29T23:21:05Z","modified":"2023-01-23T17:38:45Z","cwes":["CWE-242"],"updated_at":"2026-11-02T14:36:14.033357Z"}],"nvd":[{"id":"CVE-2017-0904","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.","status":"published","published":"2017-11-13T17:29:00.347Z","modified":"2026-06-17T00:58:30.08Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-242","CWE-755"],"updated_at":"2026-11-02T14:04:08.635428Z"}],"osv":[{"id":"CVE-2017-0904","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.","status":"published","published":"2017-11-13T17:29:00.347Z","modified":"2026-10-20T10:48:06.513242106Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:03.472693Z"},{"id":"GHSA-hxhj-hp9m-qwc4","title":"private_address_check vulnerable to bypass of Resolv.getaddresses method","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.","status":"published","published":"2017-11-29T23:21:05Z","modified":"2024-11-30T05:29:47.397724Z","cwes":["CWE-242"],"updated_at":"2026-11-02T15:46:49.621585Z"}]}}