mal-2025-47792
Vulnerability from ossf_malicious_packages
Published
2025-08-29 18:41
Modified
2025-12-03 00:04
Summary
Malicious code in osanlizer (PyPI)
Details

-= Per source details. Do not edit below this line.=-

Source: kam193 (b232b669046429e182e86e8e80a041907ff6d9b135b45e9de1ce17fc05dd4d42)

Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.


Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: GENERIC-standard-pypi-install-pentest

Reasons (based on the campaign):

  • The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.

  • The package overrides the install command in setup.py to execute malicious code during installation.


{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "osanlizer",
        "purl": "pkg:pypi/osanlizer"
      },
      "versions": [
        "1.0.6",
        "1.0.7",
        "1.0.9"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)"
    },
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "ANALYST"
    },
    {
      "contact": [
        "https://www.reversinglabs.com"
      ],
      "name": "ReversingLabs",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "RLMA-2025-04797",
        "import_time": "2025-09-26T11:05:35.218135264Z",
        "modified_time": "2025-09-26T09:14:20Z",
        "sha256": "5a22760876b525a4fb3417d9c18f9cc6f8d804a00186ae32f693af7c307e96ce",
        "source": "reversing-labs",
        "versions": [
          "1.0.6",
          "1.0.7",
          "1.0.9"
        ]
      },
      {
        "id": "pypi/GENERIC-standard-pypi-install-pentest/osanlizer",
        "import_time": "2025-12-02T22:30:56.279748677Z",
        "modified_time": "2025-08-29T18:41:35.485985Z",
        "sha256": "0a33afbbe9e8a6dc1ec06ad352415e35243d248fe908c15fe3c26323fcee3e8e",
        "source": "kam193",
        "versions": [
          "1.0.6"
        ]
      },
      {
        "id": "pypi/GENERIC-standard-pypi-install-pentest/osanlizer",
        "import_time": "2025-12-02T23:07:19.46668567Z",
        "modified_time": "2025-08-29T18:41:35.485985Z",
        "sha256": "b232b669046429e182e86e8e80a041907ff6d9b135b45e9de1ce17fc05dd4d42",
        "source": "kam193",
        "versions": [
          "1.0.6"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (b232b669046429e182e86e8e80a041907ff6d9b135b45e9de1ce17fc05dd4d42)\nInstalling the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.\n\n\n---\n\nCategory: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research \u0026 co, with clearly low-harm possibilities.\n\n\nCampaign: GENERIC-standard-pypi-install-pentest\n\n\nReasons (based on the campaign):\n\n\n - The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.\n\n\n - The package overrides the install command in setup.py to execute malicious code during installation.\n",
  "id": "MAL-2025-47792",
  "modified": "2025-12-03T00:04:27Z",
  "published": "2025-08-29T18:41:35Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/osanlizer"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in osanlizer (PyPI)"
}


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Sightings

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Nomenclature

  • 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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