FKIE_CVE-2019-14868

Vulnerability from fkie_nvd - Published: 2020-04-02 17:15 - Updated: 2024-11-21 04:27
Severity ?
7.4 (High) - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In ksh version 20120801, a flaw was found in the way it evaluates certain environment variables. An attacker could use this flaw to override or bypass environment restrictions to execute shell commands. Services and applications that allow remote unauthenticated attackers to provide one of those environment variables could allow them to exploit this issue remotely.
References
secalert@redhat.comhttp://seclists.org/fulldisclosure/2020/May/53Mailing List, Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14868Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://github.com/att/ast/commit/c7de8b641266bac7c77942239ac659edfee9ecd2Patch, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2020/07/msg00015.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://support.apple.com/kb/HT211170Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2020/May/53Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14868Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/att/ast/commit/c7de8b641266bac7c77942239ac659edfee9ecd2Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/07/msg00015.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT211170Third Party Advisory
Impacted products
Vendor Product Version
ksh_project ksh 20120801
debian debian_linux 9.0
apple mac_os_x *
To clipboard 

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    {
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              "matchCriteriaId": "C453FD9C-7375-4E2E-84AD-ABC3CC786153",
              "vulnerable": true
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In ksh version 20120801, a flaw was found in the way it evaluates certain environment variables. An attacker could use this flaw to override or bypass environment restrictions to execute shell commands. Services and applications that allow remote unauthenticated attackers to provide one of those environment variables could allow them to exploit this issue remotely."
    },
    {
      "lang": "es",
      "value": "En ksh versi\u00f3n 20120801, se detect\u00f3 un fallo en la manera que eval\u00faa determinadas variables de entorno. Un atacante podr\u00eda usar este fallo para anular u omitir unas restricciones del entorno para ejecutar comandos de shell. Los servicios y las aplicaciones permiten a atacantes remotos no autenticados proporcionar una de esas variables de entorno que podr\u00edan permitirles explotar este problema remotamente."
    }
  ],
  "id": "CVE-2019-14868",
  "lastModified": "2024-11-21T04:27:32.553",
  "metrics": {
    "cvssMetricV2": [
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        "baseSeverity": "HIGH",
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          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
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          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
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        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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          "baseScore": 7.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
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          "scope": "UNCHANGED",
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          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
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        "type": "Secondary"
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  "published": "2020-04-02T17:15:13.990",
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  "vulnStatus": "Modified",
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      "source": "nvd@nist.gov",
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}


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  • 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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