GHSA-CR5Q-6Q9F-RQ6Q

Vulnerability from github – Published: 2023-08-23 20:36 – Updated: 2025-02-18 22:32
VLAI?
Summary
Active Support Possibly Discloses Locally Encrypted Files
Details

There is a possible file disclosure of locally encrypted files in Active Support. This vulnerability has been assigned the CVE identifier CVE-2023-38037.

Versions Affected: >= 5.2.0 Not affected: < 5.2.0 Fixed Versions: 7.0.7.1, 6.1.7.5

Impact

ActiveSupport::EncryptedFile writes contents that will be encrypted to a temporary file. The temporary file’s permissions are defaulted to the user’s current umask settings, meaning that it’s possible for other users on the same system to read the contents of the temporary file.

Attackers that have access to the file system could possibly read the contents of this temporary file while a user is editing it.

All users running an affected release should either upgrade or use one of the workarounds immediately.

Releases

The fixed releases are available at the normal locations.

Workarounds

To work around this issue, you can set your umask to be more restrictive like this:

$ umask 0077
Severity ?
5.5 (Medium)
CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:L
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "activesupport"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.2.0"
            },
            {
              "fixed": "6.1.7.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "activesupport"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.0.0"
            },
            {
              "fixed": "7.0.7.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-38037"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-377",
      "CWE-732"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-08-23T20:36:24Z",
    "nvd_published_at": "2025-01-09T01:15:07Z",
    "severity": "MODERATE"
  },
  "details": "There is a possible file disclosure of locally encrypted files in Active Support. This vulnerability has been assigned the CVE identifier CVE-2023-38037.\n\nVersions Affected: \u003e= 5.2.0 Not affected: \u003c 5.2.0 Fixed Versions: 7.0.7.1, 6.1.7.5\n\n# Impact\nActiveSupport::EncryptedFile writes contents that will be encrypted to a temporary file. The temporary file\u2019s permissions are defaulted to the user\u2019s current umask settings, meaning that it\u2019s possible for other users on the same system to read the contents of the temporary file.\n\nAttackers that have access to the file system could possibly read the contents of this temporary file while a user is editing it.\n\nAll users running an affected release should either upgrade or use one of the workarounds immediately.\n\n# Releases\nThe fixed releases are available at the normal locations.\n\n# Workarounds\nTo work around this issue, you can set your umask to be more restrictive like this:\n\n```ruby\n$ umask 0077\n```",
  "id": "GHSA-cr5q-6q9f-rq6q",
  "modified": "2025-02-18T22:32:50Z",
  "published": "2023-08-23T20:36:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-38037"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rails/rails/commit/a21d6edf35a60383dfa6c4da49e4b1aef5f00731"
    },
    {
      "type": "WEB",
      "url": "https://discuss.rubyonrails.org/t/cve-2023-38037-possible-file-disclosure-of-locally-encrypted-files/83544"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rails/rails"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rails/rails/releases/tag/v7.0.7.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2023-38037.yml"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20250214-0010"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Active Support Possibly Discloses Locally Encrypted Files"
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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