GHSA-HXF5-99XG-86HW

Vulnerability from github – Published: 2024-11-05 22:19 – Updated: 2024-11-06 14:28
VLAI?
Summary
cap-std doesn't fully sandbox all the Windows device filenames
Details

Impact

cap-std's filesystem sandbox implementation on Windows blocks access to special device filenames such as "COM1", "COM2", "LPT0", "LPT1", and so on, however it did not block access to the special device filenames which use superscript digits, such as "COM¹", "COM²", "LPT⁰", "LPT¹", and so on. Untrusted filesystem paths could bypass the sandbox and access devices through those special device filenames with superscript digits, and through them provide access peripheral devices connected to the computer, or network resources mapped to those devices. This can include modems, printers, network printers, and any other device connected to a serial or parallel port, including emulated USB serial ports.

Patches

The bug is fixed in https://github.com/bytecodealliance/cap-std/pull/371, which is published in cap-primitives 3.4.1, cap-std 3.4.1, and cap-async-std 3.4.1.

Workarounds

There are no known workarounds for this issue. Affected Windows users are recommended to upgrade.

References

Severity ?
2.3 (Low)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "cap-std"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.4.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "cap-async-std"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.4.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "cap-primitives"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.4.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-51756"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-11-05T22:19:59Z",
    "nvd_published_at": "2024-11-05T22:15:21Z",
    "severity": "LOW"
  },
  "details": "### Impact\n\ncap-std\u0027s filesystem sandbox implementation on Windows blocks access to special device filenames such as \"COM1\", \"COM2\", \"LPT0\", \"LPT1\", and so on, however it did not block access to the special device filenames which use superscript digits, such as \"COM\u00b9\", \"COM\u00b2\", \"LPT\u2070\", \"LPT\u00b9\", and so on. Untrusted filesystem paths could bypass the sandbox and access devices through those special device filenames with superscript digits, and through them provide access peripheral devices connected to the computer, or network resources mapped to those devices. This can include modems, printers, network printers, and any other device connected to a serial or parallel port, including emulated USB serial ports.\n\n### Patches\n\nThe bug is fixed in https://github.com/bytecodealliance/cap-std/pull/371, which is published in cap-primitives 3.4.1, cap-std 3.4.1, and cap-async-std 3.4.1.\n\n### Workarounds\n\nThere are no known workarounds for this issue. Affected Windows users are recommended to upgrade.\n\n### References\n\n - [Microsoft\u0027s documentation](https://learn.microsoft.com/en-us/windows/win32/fileio/naming-a-file#naming-conventions) of the special device filenames\n - [ISO-8859-1](https://en.wikipedia.org/wiki/ISO/IEC_8859-1)\n - https://github.com/bytecodealliance/cap-std/pull/371\n",
  "id": "GHSA-hxf5-99xg-86hw",
  "modified": "2024-11-06T14:28:24Z",
  "published": "2024-11-05T22:19:59Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/bytecodealliance/cap-std/security/advisories/GHSA-hxf5-99xg-86hw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-51756"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bytecodealliance/cap-std/pull/371"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bytecodealliance/cap-std/commit/dcc3818039761331fbeacbb3a40c542b65b5ebf7"
    },
    {
      "type": "WEB",
      "url": "https://en.wikipedia.org/wiki/ISO/IEC_8859-1"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/bytecodealliance/cap-std"
    },
    {
      "type": "WEB",
      "url": "https://learn.microsoft.com/en-us/windows/win32/fileio/naming-a-file#naming-conventions"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "cap-std doesn\u0027t fully sandbox all the Windows device filenames"
}


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