gsd-2019-14868
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
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.
Aliases
Aliases
CVE-2019-14868


To clipboard 

{
  "GSD": {
    "alias": "CVE-2019-14868",
    "description": "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.",
    "id": "GSD-2019-14868",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-14868.html",
      "https://access.redhat.com/errata/RHSA-2020:5352",
      "https://access.redhat.com/errata/RHSA-2020:5351",
      "https://access.redhat.com/errata/RHSA-2020:2210",
      "https://access.redhat.com/errata/RHSA-2020:1333",
      "https://access.redhat.com/errata/RHSA-2020:1332",
      "https://access.redhat.com/errata/RHSA-2020:0568",
      "https://access.redhat.com/errata/RHSA-2020:0559",
      "https://access.redhat.com/errata/RHSA-2020:0515",
      "https://access.redhat.com/errata/RHSA-2020:0431",
      "https://advisories.mageia.org/CVE-2019-14868.html",
      "https://security.archlinux.org/CVE-2019-14868",
      "https://linux.oracle.com/cve/CVE-2019-14868.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-14868"
      ],
      "details": "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.",
      "id": "GSD-2019-14868",
      "modified": "2023-12-13T01:23:53.224994Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2019-14868",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "ksh",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "20120801"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "KornShell"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
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      },
      "problemtype": {
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              {
                "cweId": "CWE-77",
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                "value": "CWE-77"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://support.apple.com/kb/HT211170",
            "refsource": "MISC",
            "url": "https://support.apple.com/kb/HT211170"
          },
          {
            "name": "http://seclists.org/fulldisclosure/2020/May/53",
            "refsource": "MISC",
            "url": "http://seclists.org/fulldisclosure/2020/May/53"
          },
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14868",
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14868"
          },
          {
            "name": "https://github.com/att/ast/commit/c7de8b641266bac7c77942239ac659edfee9ecd2",
            "refsource": "MISC",
            "url": "https://github.com/att/ast/commit/c7de8b641266bac7c77942239ac659edfee9ecd2"
          },
          {
            "name": "https://lists.debian.org/debian-lts-announce/2020/07/msg00015.html",
            "refsource": "MISC",
            "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00015.html"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:ksh_project:ksh:20120801:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "10.15.5",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2019-14868"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-77"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14868",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14868"
            },
            {
              "name": "https://github.com/att/ast/commit/c7de8b641266bac7c77942239ac659edfee9ecd2",
              "refsource": "MISC",
              "tags": [
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              ],
              "url": "https://github.com/att/ast/commit/c7de8b641266bac7c77942239ac659edfee9ecd2"
            },
            {
              "name": "https://support.apple.com/kb/HT211170",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://support.apple.com/kb/HT211170"
            },
            {
              "name": "20200529 APPLE-SA-2020-05-26-3 macOS Catalina 10.15.5, Security Update 2020-003 Mojave, Security Update 2020-003 High Sierra",
              "refsource": "FULLDISC",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://seclists.org/fulldisclosure/2020/May/53"
            },
            {
              "name": "[debian-lts-announce] 20200720 [SECURITY] [DLA 2284-1] ksh security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00015.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 7.2,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-02-12T23:36Z",
      "publishedDate": "2020-04-02T17:15Z"
    }
  }
}


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