GHSA-PF8F-W267-MQ2H

Vulnerability from github – Published: 2019-11-15 20:26 – Updated: 2023-01-23 20:22
VLAI?
Summary
The rack-cors rubygem may allow directory traveral
Details

An issue was discovered in the rack-cors (aka Rack CORS Middleware) gem before 1.0.4 for Ruby. It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format.

Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "rack-cors"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-18978"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2019-11-15T20:26:35Z",
    "nvd_published_at": "2019-11-14T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in the rack-cors (aka Rack CORS Middleware) gem before 1.0.4 for Ruby. It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format.",
  "id": "GHSA-pf8f-w267-mq2h",
  "modified": "2023-01-23T20:22:08Z",
  "published": "2019-11-15T20:26:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18978"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cyu/rack-cors/commit/e4d4fc362a4315808927011cbe5afcfe5486f17d"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cyu/rack-cors"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cyu/rack-cors/compare/v1.0.3...v1.0.4"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/02/msg00004.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00000.html"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4571-1"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4918"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "The rack-cors rubygem may allow directory traveral"
}


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