GHSA-HHWC-8G49-J8JX

Vulnerability from github – Published: 2019-10-25 19:41 – Updated: 2023-08-25 23:43
VLAI?
Summary
Ruby_parser-legacy Incorrect Permission Assignment for Critical Resource
Details

The ruby_parser-legacy (aka legacy) gem 1.0.0 for Ruby allows local privilege escalation because of world-writable files. For example, if the brakeman gem (which has a legacy dependency) 4.5.0 through 4.7.0 is used, a local user can insert malicious code into the ruby_parser-legacy-1.0.0/lib/ruby_parser/legacy/ruby_parser.rb file.

Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "ruby_parser-legacy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-18409"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-732"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2019-10-25T16:26:28Z",
    "nvd_published_at": "2019-10-24T14:15:00Z",
    "severity": "HIGH"
  },
  "details": "The ruby_parser-legacy (aka legacy) gem 1.0.0 for Ruby allows local privilege escalation because of world-writable files. For example, if the brakeman gem (which has a legacy dependency) 4.5.0 through 4.7.0 is used, a local user can insert malicious code into the `ruby_parser-legacy-1.0.0/lib/ruby_parser/legacy/ruby_parser.rb` file.",
  "id": "GHSA-hhwc-8g49-j8jx",
  "modified": "2023-08-25T23:43:43Z",
  "published": "2019-10-25T19:41:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18409"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zenspider/ruby_parser-legacy/issues/1"
    },
    {
      "type": "WEB",
      "url": "https://brakemanscanner.org/blog/2019/10/14/brakeman-4-dot-7-dot-1-released"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/brakeman/CVE-2019-18409.yml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/zenspider/ruby_parser-legacy"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Ruby_parser-legacy Incorrect Permission Assignment for Critical Resource"
}


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