PYSEC-2017-19

Vulnerability from pysec - Published: 2017-11-08 03:29 - Updated: 2021-07-05 00:01
VLAI?
Details

An exploitable vulnerability exists in the YAML parsing functionality in the parse_yaml_query method in parser.py in MLAlchemy before 0.2.2. When processing YAML-Based queries for data, a YAML parser can execute arbitrary Python commands resulting in command execution because load is used where safe_load should have been used. An attacker can insert Python into loaded YAML to trigger this vulnerability.

Impacted products
Name purl
mlalchemy pkg:pypi/mlalchemy

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "mlalchemy",
        "purl": "pkg:pypi/mlalchemy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "bc795757febdcce430d89f9d08f75c32d6989d3c"
            }
          ],
          "repo": "https://github.com/thanethomson/MLAlchemy",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.2.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1.0",
        "0.1.1",
        "0.1.2",
        "0.1.3",
        "0.2.0",
        "0.2.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2017-16615",
    "GHSA-xpm8-98mx-h4c5"
  ],
  "details": "An exploitable vulnerability exists in the YAML parsing functionality in the parse_yaml_query method in parser.py in MLAlchemy before 0.2.2. When processing YAML-Based queries for data, a YAML parser can execute arbitrary Python commands resulting in command execution because load is used where safe_load should have been used. An attacker can insert Python into loaded YAML to trigger this vulnerability.",
  "id": "PYSEC-2017-19",
  "modified": "2021-07-05T00:01:22.762966Z",
  "published": "2017-11-08T03:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://github.com/thanethomson/MLAlchemy/issues/1"
    },
    {
      "type": "ARTICLE",
      "url": "https://joel-malwarebenchmark.github.io/blog/2017/11/08/cve-2017-16615-critical-restful-web-applications-vulnerability/"
    },
    {
      "type": "FIX",
      "url": "https://github.com/thanethomson/MLAlchemy/commit/bc795757febdcce430d89f9d08f75c32d6989d3c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-xpm8-98mx-h4c5"
    }
  ]
}


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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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