ghsa-cr5q-6q9f-rq6q
Vulnerability from github
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:
ruby
$ umask 0077
{
"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"
],
"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```\n",
"id": "GHSA-cr5q-6q9f-rq6q",
"modified": "2025-01-09T15:38:18Z",
"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"
}
],
"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"
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.