GHSA-WC64-C5RV-32PF

Vulnerability from github – Published: 2023-05-11 20:47 – Updated: 2023-05-11 20:47
VLAI?
Summary
in-toto vulnerable to Configuration Read From Local Directory
Details

Impact

The in-toto configuration is read from various directories and allows users to configure the behavior of the framework. The files are from directories following the XDG base directory specification [1]. Among the files read is .in_totorc which is a hidden file in the directory in which in-toto is run. If an attacker controls the inputs to a supply chain step, they can mask their activities by also passing in an .in_totorc file that includes the necessary exclude patterns and settings.

RC files are widely used in other systems [2] and security issues have been discovered in their implementations as well [3]. We found in our conversations with in-toto adopters that in_totorc is not their preferred way to configure in-toto. As none of the options supported in in_totorc is unique, and can be set elsewhere using API parameters or CLI arguments, we decided to drop support for in_totorc.

Other Recommendations

Sandbox functionary code as recommended in https://github.com/in-toto/docs/security/advisories/GHSA-p86f-xmg6-9q4x.

References

[1] https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html [2] https://spec.editorconfig.org/ [3] https://github.blog/2022-04-12-git-security-vulnerability-announced/

Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.4.0"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "in-toto"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-32076"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-15",
      "CWE-610"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-05-11T20:47:56Z",
    "nvd_published_at": "2023-05-10T18:15:10Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nThe in-toto configuration is read from various directories and allows users to configure the behavior of the framework. The files are from directories following the XDG base directory specification [1]. Among the files read is `.in_totorc` which is a hidden file in the directory in which in-toto is run. If an attacker controls the inputs to a supply chain step, they can mask their activities by also passing in an `.in_totorc` file that includes the necessary exclude patterns and settings.\n\nRC files are widely used in other systems [2] and security issues have been discovered in their implementations as well [3]. We found in our conversations with in-toto adopters that `in_totorc` is not their preferred way to configure in-toto. As none of the options supported in `in_totorc` is unique, and can be set elsewhere using API parameters or CLI arguments, we decided to drop support for `in_totorc`.\n\n### Other Recommendations\n\nSandbox functionary code as recommended in https://github.com/in-toto/docs/security/advisories/GHSA-p86f-xmg6-9q4x.\n\n### References\n\n[1] https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html\n[2] https://spec.editorconfig.org/\n[3] https://github.blog/2022-04-12-git-security-vulnerability-announced/\n",
  "id": "GHSA-wc64-c5rv-32pf",
  "modified": "2023-05-11T20:47:56Z",
  "published": "2023-05-11T20:47:56Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/in-toto/docs/security/advisories/GHSA-p86f-xmg6-9q4x"
    },
    {
      "type": "WEB",
      "url": "https://github.com/in-toto/in-toto/security/advisories/GHSA-wc64-c5rv-32pf"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32076"
    },
    {
      "type": "WEB",
      "url": "https://github.com/in-toto/in-toto/commit/3a21d84f40811b7d191fa7bd17265c1f99599afd"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/in-toto/in-toto"
    },
    {
      "type": "WEB",
      "url": "https://github.com/in-toto/in-toto/releases/tag/v2.0.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/in-toto/PYSEC-2023-63.yaml"
    },
    {
      "type": "WEB",
      "url": "https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "in-toto vulnerable to Configuration Read From Local Directory"
}


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