FKIE_CVE-2019-12760

Vulnerability from fkie_nvd - Published: 2019-06-06 19:29 - Updated: 2024-11-21 04:23
Severity ?
3.3 (Low) - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N
Summary
A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache. Cache loading relies on pickle and, provided that an evil pickle can be written to a cache grammar file and that its parsing can be triggered, this flaw leads to Arbitrary Code Execution. NOTE: This is disputed because "the cache directory is not under control of the attacker in any common configuration.
References
cve@mitre.orghttps://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7Exploit, Third Party Advisory
cve@mitre.orghttps://github.com/davidhalter/parso/issues/75
af854a3a-2127-422b-91ae-364da2661108https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/davidhalter/parso/issues/75
Impacted products
Vendor Product Version
parso_project parso *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:parso_project:parso:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B538BE6F-AEC7-4E13-BDDF-7442A2958EC5",
              "versionEndIncluding": "0.4.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [
    {
      "sourceIdentifier": "cve@mitre.org",
      "tags": [
        "disputed"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache. Cache loading relies on pickle and, provided that an evil pickle can be written to a cache grammar file and that its parsing can be triggered, this flaw leads to Arbitrary Code Execution. NOTE: This is disputed because \"the cache directory is not under control of the attacker in any common configuration."
    },
    {
      "lang": "es",
      "value": "** EN DISPUTA ** Existe una vulnerabilidad de deserializaci\u00f3n en la forma en que el parso a trav\u00e9s de 0,4,0 maneja el an\u00e1lisis de la gram\u00e1tica desde el cach\u00e9. La carga de cach\u00e9 se basa en pickle y, siempre que se pueda escribir un pickle malicioso en un archivo de gram\u00e1tica de cach\u00e9 y que se pueda desencadenar su an\u00e1lisis, este defecto lleva a la Ejecuci\u00f3n de C\u00f3digo Arbitrario. NOTA: Esta identificaci\u00f3n es cuestionada porque \"el directorio cach\u00e9 no est\u00e1 bajo el control del atacante en ninguna configuraci\u00f3n com\u00fan \"."
    }
  ],
  "id": "CVE-2019-12760",
  "lastModified": "2024-11-21T04:23:31.013",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 6.8,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.3,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 0.7,
        "impactScore": 2.5,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2019-06-06T19:29:00.500",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/davidhalter/parso/issues/75"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://github.com/davidhalter/parso/issues/75"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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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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