ghsa-w578-j992-554x
Vulnerability from github
Published
2018-09-06 03:28
Modified
2024-09-04 18:45
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Summary
Ansible fails to properly mark lookup-plugin results as unsafe
Details

Ansible before versions 2.3.1.0 and 2.4.0.0 fails to properly mark lookup-plugin results as unsafe. If an attacker could control the results of lookup() calls, they could inject Unicode strings to be parsed by the jinja2 templating system, resulting in code execution. By default, the jinja2 templating language is now marked as 'unsafe' and is not evaluated.

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{
  "affected": [
    {
      "ecosystem_specific": {
        "affected_functions": [
          "ansible.template.Templar._lookup"
        ]
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "ansible"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-7481"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:59:39Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "Ansible before versions 2.3.1.0 and 2.4.0.0 fails to properly mark lookup-plugin results as unsafe. If an attacker could control the results of lookup() calls, they could inject Unicode strings to be parsed by the jinja2 templating system, resulting in code execution. By default, the jinja2 templating language is now marked as \u0027unsafe\u0027 and is not evaluated.",
  "id": "GHSA-w578-j992-554x",
  "modified": "2024-09-04T18:45:21Z",
  "published": "2018-09-06T03:28:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7481"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ansible/ansible/commit/a1886911fcf4b691130cfc70dfc5daa5e07c46a3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ansible/ansible/commit/ed56f51f185a1ffd7ea57130d260098686fcc7c2"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:1244"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:1334"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:1476"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:1499"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:1599"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:2524"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7481"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-w578-j992-554x"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ansible/ansible"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/ansible/PYSEC-2018-41.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/01/msg00023.html"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4072-1"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20170801122609/http://www.securityfocus.com/bid/98492"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Ansible fails to properly mark lookup-plugin results as unsafe"
}


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