GHSA-PHM2-C5JJ-Q34C

Vulnerability from github – Published: 2024-07-31 06:30 – Updated: 2024-07-31 06:30
VLAI
Details

os/linux/elf.rb in Homebrew brew before 4.2.20 uses ldd to load ELF files obtained from untrusted sources, which allows attackers to achieve code execution via an ELF file with a custom .interp section. NOTE: this code execution would occur during an un-sandboxed binary relocation phase, which occurs before a user would expect execution of downloaded package content. (237d1e783f7ee261beaba7d3f6bde22da7148b0a was the tested vulnerable version.)

Severity
8.3 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2024-42381"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-830"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-31T06:15:02Z",
    "severity": "HIGH"
  },
  "details": "os/linux/elf.rb in Homebrew brew before 4.2.20 uses ldd to load ELF files obtained from untrusted sources, which allows attackers to achieve code execution via an ELF file with a custom .interp section. NOTE: this code execution would occur during an un-sandboxed binary relocation phase, which occurs before a user would expect execution of downloaded package content. (237d1e783f7ee261beaba7d3f6bde22da7148b0a was the tested vulnerable version.)",
  "id": "GHSA-phm2-c5jj-q34c",
  "modified": "2024-07-31T06:30:35Z",
  "published": "2024-07-31T06:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42381"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Homebrew/brew/pull/17136"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Homebrew/brew/commit/916b37388d3851a8a93a8e9b4adc38873680ead7"
    },
    {
      "type": "WEB",
      "url": "https://blog.trailofbits.com/2024/07/30/our-audit-of-homebrew"
    },
    {
      "type": "WEB",
      "url": "https://brew.sh/2024/07/30/homebrew-security-audit"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Homebrew/brew/releases/tag/4.2.20"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Homebrew/brew/tree/237d1e783f7ee261beaba7d3f6bde22da7148b0a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/trailofbits/publications/blob/master/reviews/2023-08-28-homebrew-securityreview.pdf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • 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.
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  • 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.


Detection rules are retrieved from Rulezet.