GHSA-M2XV-WGQG-4GXH

Vulnerability from github – Published: 2022-06-10 00:00 – Updated: 2022-06-18 00:00
VLAI?
Details

A Privilege Context Switching issue was discovered in join.c in Firejail 0.9.68. By crafting a bogus Firejail container that is accepted by the Firejail setuid-root program as a join target, a local attacker can enter an environment in which the Linux user namespace is still the initial user namespace, the NO_NEW_PRIVS prctl is not activated, and the entered mount namespace is under the attacker's control. In this way, the filesystem layout can be adjusted to gain root privileges through execution of available setuid-root binaries such as su or sudo.

Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2022-31214"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-06-09T16:15:00Z",
    "severity": "HIGH"
  },
  "details": "A Privilege Context Switching issue was discovered in join.c in Firejail 0.9.68. By crafting a bogus Firejail container that is accepted by the Firejail setuid-root program as a join target, a local attacker can enter an environment in which the Linux user namespace is still the initial user namespace, the NO_NEW_PRIVS prctl is not activated, and the entered mount namespace is under the attacker\u0027s control. In this way, the filesystem layout can be adjusted to gain root privileges through execution of available setuid-root binaries such as su or sudo.",
  "id": "GHSA-m2xv-wgqg-4gxh",
  "modified": "2022-06-18T00:00:20Z",
  "published": "2022-06-10T00:00:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31214"
    },
    {
      "type": "WEB",
      "url": "https://firejail.wordpress.com/download-2/release-notes"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/06/msg00023.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6RZOTZ36RUSL6DOVHITY25ZYKWTG5HN3"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KUZZ5M6LIBYRKTKGROXC47TDC3FRTGJF"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SIBEBE3KFINMGJATBQQS7D2VQQ62ZVMF"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202305-19"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2022/dsa-5167"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2022/06/08/10"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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Detection rules are retrieved from Rulezet.