GHSA-4MH8-9689-38VR

Vulnerability from github – Published: 2024-07-25 21:31 – Updated: 2024-08-07 15:10
VLAI
Summary
snapd failed to restrict writes to the $HOME/bin path
Details

In snapd versions prior to 2.62, when using AppArmor for enforcement of sandbox permissions, snapd failed to restrict writes to the $HOME/bin path. In Ubuntu, when this path exists, it is automatically added to the users PATH. An attacker who could convince a user to install a malicious snap which used the 'home' plug could use this vulnerability to install arbitrary scripts into the users PATH which may then be run by the user outside of the expected snap sandbox and hence allow them to escape confinement.

Severity
6.3 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/snapcore/snapd"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.62"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-1724"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-732"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-07-26T21:34:22Z",
    "nvd_published_at": "2024-07-25T19:15:09Z",
    "severity": "MODERATE"
  },
  "details": "In snapd versions prior to 2.62, when using AppArmor for enforcement of sandbox permissions, snapd failed to restrict writes to the $HOME/bin path. In Ubuntu, when this path exists, it is automatically added to the users PATH. An attacker who could convince a user to install a malicious snap which used the \u0027home\u0027 plug could use this vulnerability to install arbitrary scripts into the users PATH which may then be run by the user outside of the expected snap sandbox and hence allow them to escape confinement.",
  "id": "GHSA-4mh8-9689-38vr",
  "modified": "2024-08-07T15:10:52Z",
  "published": "2024-07-25T21:31:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-1724"
    },
    {
      "type": "WEB",
      "url": "https://github.com/snapcore/snapd/pull/13689"
    },
    {
      "type": "WEB",
      "url": "https://github.com/snapcore/snapd/commit/aa191f97713de8dc3ce3ac818539f0b976eb8ef6"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/snapcore/snapd"
    },
    {
      "type": "WEB",
      "url": "https://gld.mcphail.uk/posts/explaining-cve-2024-1724"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2024-3007"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "snapd failed to restrict writes to the $HOME/bin path"
}


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