PYSEC-2020-341

Vulnerability from pysec - Published: 2020-05-22 17:15 - Updated: 2022-01-05 02:16
VLAI?
Details

An exploitable vulnerability exists in the configuration-loading functionality of the jw.util package before 2.3 for Python. When loading a configuration with FromString or FromStream with YAML, one can execute arbitrary Python code, resulting in OS command execution, because safe_load is not used.

Impacted products
Name purl
jw.util pkg:pypi/jw-util

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "jw.util",
        "purl": "pkg:pypi/jw-util"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "-class.-jw.util.version.Version-",
        "1.0a",
        "1.0dev1",
        "1.3.4",
        "1.3.5",
        "1.3.6",
        "1.3.7",
        "1.4",
        "1.4.1",
        "1.4.2",
        "1.5.1",
        "1.5.2",
        "1.5.3",
        "1.5.4",
        "1.5.5",
        "1.5a0",
        "1.5a1",
        "1.5a2",
        "1.5a3",
        "1.5a4",
        "1.5b0",
        "1.6",
        "1.7",
        "1.8",
        "1.9",
        "1.9.1",
        "1.9.2",
        "2",
        "2.0",
        "2.0.1",
        "2.0a0",
        "2.0a1",
        "2.0a2",
        "2.0a3",
        "2.0b0",
        "2.1",
        "2.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2020-13388",
    "GHSA-h72c-w3q3-55qq"
  ],
  "details": "An exploitable vulnerability exists in the configuration-loading functionality of the jw.util package before 2.3 for Python. When loading a configuration with FromString or FromStream with YAML, one can execute arbitrary Python code, resulting in OS command execution, because safe_load is not used.",
  "id": "PYSEC-2020-341",
  "modified": "2022-01-05T02:16:25.743194Z",
  "published": "2020-05-22T17:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://joel-malwarebenchmark.github.io"
    },
    {
      "type": "ARTICLE",
      "url": "https://joel-malwarebenchmark.github.io/blog/2020/04/27/cve-2020-13388-jw-util-vulnerability/"
    },
    {
      "type": "ADVISORY",
      "url": "https://security.netapp.com/advisory/ntap-20200528-0002/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-h72c-w3q3-55qq"
    }
  ]
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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