ghsa-g4rg-993r-mgx7
Vulnerability from github
Published
2022-05-24 19:18
Modified
2024-02-02 20:50
Severity ?
Summary
Improper Neutralization of Special Elements used in a Command in Shell-quote
Details
The shell-quote package before 1.7.3 for Node.js allows command injection. An attacker can inject unescaped shell metacharacters through a regex designed to support Windows drive letters. If the output of this package is passed to a real shell as a quoted argument to a command with exec()
, an attacker can inject arbitrary commands. This is because the Windows drive letter regex character class is [A-z]
instead of the correct [A-Za-z]
. Several shell metacharacters exist in the space between capital letter Z and lower case letter a, such as the backtick character.
{ "affected": [ { "database_specific": { "last_known_affected_version_range": "\u003c= 1.7.2" }, "ecosystem_specific": { "affected_functions": [ "(shell-quote).quote" ] }, "package": { "ecosystem": "npm", "name": "shell-quote" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "1.7.3" } ], "type": "ECOSYSTEM" } ] } ], "aliases": [ "CVE-2021-42740" ], "database_specific": { "cwe_ids": [ "CWE-77" ], "github_reviewed": true, "github_reviewed_at": "2022-06-21T20:08:10Z", "nvd_published_at": "2021-10-21T15:15:00Z", "severity": "CRITICAL" }, "details": "The shell-quote package before 1.7.3 for Node.js allows command injection. An attacker can inject unescaped shell metacharacters through a regex designed to support Windows drive letters. If the output of this package is passed to a real shell as a quoted argument to a command with `exec()`, an attacker can inject arbitrary commands. This is because the Windows drive letter regex character class is `[A-z]` instead of the correct `[A-Za-z]`. Several shell metacharacters exist in the space between capital letter Z and lower case letter a, such as the backtick character.", "id": "GHSA-g4rg-993r-mgx7", "modified": "2024-02-02T20:50:00Z", "published": "2022-05-24T19:18:27Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-42740" }, { "type": "WEB", "url": "https://github.com/ljharb/shell-quote/commit/5799416ed454aa4ec9afafc895b4e31760ea1abe" }, { "type": "PACKAGE", "url": "https://github.com/ljharb/shell-quote" }, { "type": "WEB", "url": "https://github.com/ljharb/shell-quote/blob/master/CHANGELOG.md#173" }, { "type": "WEB", "url": "https://www.npmjs.com/package/shell-quote" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "type": "CVSS_V3" } ], "summary": "Improper Neutralization of Special Elements used in a Command in Shell-quote" }
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Sightings
Author | Source | Type | Date |
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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.