Vulnerability-Lookup

ubuntu-cve-2018-6536

Vulnerability from osv_ubuntu

Published

2018-02-02 09:29

Modified

2026-05-20 14:50

Summary

Details

An issue was discovered in Icinga 2.x through 2.8.1. The daemon creates an icinga2.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for icinga2.pid modification before a root script executes a "kill cat /pathname/icinga2.pid" command, as demonstrated by icinga2.init.d.cmake.

Severity

5.5 (Medium)


                    
                      CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2018-6536	REPORT
	https://github.com/Icinga/icinga2/issues/5991	REPORT
	https://www.cve.org/CVERecord?id=CVE-2018-6536	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "icinga2",
            "binary_version": "2.4.1-2ubuntu1"
          },
          {
            "binary_name": "icinga2-bin",
            "binary_version": "2.4.1-2ubuntu1"
          },
          {
            "binary_name": "icinga2-classicui",
            "binary_version": "2.4.1-2ubuntu1"
          },
          {
            "binary_name": "icinga2-common",
            "binary_version": "2.4.1-2ubuntu1"
          },
          {
            "binary_name": "icinga2-ido-mysql",
            "binary_version": "2.4.1-2ubuntu1"
          },
          {
            "binary_name": "icinga2-ido-pgsql",
            "binary_version": "2.4.1-2ubuntu1"
          },
          {
            "binary_name": "icinga2-studio",
            "binary_version": "2.4.1-2ubuntu1"
          },
          {
            "binary_name": "libicinga2",
            "binary_version": "2.4.1-2ubuntu1"
          },
          {
            "binary_name": "vim-icinga2",
            "binary_version": "2.4.1-2ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "icinga2",
        "purl": "pkg:deb/ubuntu/icinga2@2.4.1-2ubuntu1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.3.8-1build1",
        "2.3.11-1",
        "2.4.0-1",
        "2.4.1-1",
        "2.4.1-2",
        "2.4.1-2ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "icinga2",
            "binary_version": "2.8.1-0ubuntu2"
          },
          {
            "binary_name": "icinga2-bin",
            "binary_version": "2.8.1-0ubuntu2"
          },
          {
            "binary_name": "icinga2-classicui",
            "binary_version": "2.8.1-0ubuntu2"
          },
          {
            "binary_name": "icinga2-common",
            "binary_version": "2.8.1-0ubuntu2"
          },
          {
            "binary_name": "icinga2-ido-mysql",
            "binary_version": "2.8.1-0ubuntu2"
          },
          {
            "binary_name": "icinga2-ido-pgsql",
            "binary_version": "2.8.1-0ubuntu2"
          },
          {
            "binary_name": "icinga2-studio",
            "binary_version": "2.8.1-0ubuntu2"
          },
          {
            "binary_name": "libicinga2",
            "binary_version": "2.8.1-0ubuntu2"
          },
          {
            "binary_name": "vim-icinga2",
            "binary_version": "2.8.1-0ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "icinga2",
        "purl": "pkg:deb/ubuntu/icinga2@2.8.1-0ubuntu2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.0-1",
        "2.8.1-0ubuntu2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "icinga2",
            "binary_version": "2.11.2-1ubuntu3"
          },
          {
            "binary_name": "icinga2-bin",
            "binary_version": "2.11.2-1ubuntu3"
          },
          {
            "binary_name": "icinga2-common",
            "binary_version": "2.11.2-1ubuntu3"
          },
          {
            "binary_name": "icinga2-ido-mysql",
            "binary_version": "2.11.2-1ubuntu3"
          },
          {
            "binary_name": "icinga2-ido-pgsql",
            "binary_version": "2.11.2-1ubuntu3"
          },
          {
            "binary_name": "vim-icinga2",
            "binary_version": "2.11.2-1ubuntu3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "icinga2",
        "purl": "pkg:deb/ubuntu/icinga2@2.11.2-1ubuntu3?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.10.5-1build1",
        "2.11.2-1",
        "2.11.2-1ubuntu1",
        "2.11.2-1ubuntu2",
        "2.11.2-1ubuntu3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "icinga2",
            "binary_version": "2.13.2-1build2"
          },
          {
            "binary_name": "icinga2-bin",
            "binary_version": "2.13.2-1build2"
          },
          {
            "binary_name": "icinga2-common",
            "binary_version": "2.13.2-1build2"
          },
          {
            "binary_name": "icinga2-ido-mysql",
            "binary_version": "2.13.2-1build2"
          },
          {
            "binary_name": "icinga2-ido-pgsql",
            "binary_version": "2.13.2-1build2"
          },
          {
            "binary_name": "vim-icinga2",
            "binary_version": "2.13.2-1build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "icinga2",
        "purl": "pkg:deb/ubuntu/icinga2@2.13.2-1build2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.12.3-1",
        "2.13.1-1",
        "2.13.2-1",
        "2.13.2-1build1",
        "2.13.2-1build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "icinga2",
            "binary_version": "2.14.2-1build2"
          },
          {
            "binary_name": "icinga2-bin",
            "binary_version": "2.14.2-1build2"
          },
          {
            "binary_name": "icinga2-common",
            "binary_version": "2.14.2-1build2"
          },
          {
            "binary_name": "icinga2-ido-mysql",
            "binary_version": "2.14.2-1build2"
          },
          {
            "binary_name": "icinga2-ido-pgsql",
            "binary_version": "2.14.2-1build2"
          },
          {
            "binary_name": "vim-icinga2",
            "binary_version": "2.14.2-1build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "icinga2",
        "purl": "pkg:deb/ubuntu/icinga2@2.14.2-1build2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.13.8-1",
        "2.14.1-1",
        "2.14.2-1",
        "2.14.2-1build1",
        "2.14.2-1build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "icinga2",
            "binary_version": "2.15.0-1"
          },
          {
            "binary_name": "icinga2-bin",
            "binary_version": "2.15.0-1"
          },
          {
            "binary_name": "icinga2-common",
            "binary_version": "2.15.0-1"
          },
          {
            "binary_name": "icinga2-ido-mysql",
            "binary_version": "2.15.0-1"
          },
          {
            "binary_name": "icinga2-ido-pgsql",
            "binary_version": "2.15.0-1"
          },
          {
            "binary_name": "vim-icinga2",
            "binary_version": "2.15.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "icinga2",
        "purl": "pkg:deb/ubuntu/icinga2@2.15.0-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.14.5-1",
        "2.14.6-1",
        "2.15.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "icinga2",
            "binary_version": "2.15.1-1"
          },
          {
            "binary_name": "icinga2-bin",
            "binary_version": "2.15.1-1"
          },
          {
            "binary_name": "icinga2-common",
            "binary_version": "2.15.1-1"
          },
          {
            "binary_name": "icinga2-ido-mysql",
            "binary_version": "2.15.1-1"
          },
          {
            "binary_name": "icinga2-ido-pgsql",
            "binary_version": "2.15.1-1"
          },
          {
            "binary_name": "vim-icinga2",
            "binary_version": "2.15.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "icinga2",
        "purl": "pkg:deb/ubuntu/icinga2@2.15.1-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.15.0-1",
        "2.15.1-1"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in Icinga 2.x through 2.8.1. The daemon creates an icinga2.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for icinga2.pid modification before a root script executes a \"kill `cat /pathname/icinga2.pid`\" command, as demonstrated by icinga2.init.d.cmake.",
  "id": "UBUNTU-CVE-2018-6536",
  "modified": "2026-05-20T14:50:34Z",
  "published": "2018-02-02T09:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-6536"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Icinga/icinga2/issues/5991"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-6536"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-6536"
  ]
}

CVE-2018-6536 (GCVE-0-2018-6536)

Vulnerability from cvelistv5 – Published: 2018-02-02 09:00 – Updated: 2024-08-05 06:10

Summary

An issue was discovered in Icinga 2.x through 2.8.1. The daemon creates an icinga2.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for icinga2.pid modification before a root script executes a "kill `cat /pathname/icinga2.pid`" command, as demonstrated by icinga2.init.d.cmake.

Severity

No CVSS data available.

CWE

Assigner

mitre

References

1 reference

URL	Tags
https://github.com/Icinga/icinga2/issues/5991	x_refsource_MISC

Date Public

2018-02-02 00:00

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-05T06:10:10.303Z",
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          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/Icinga/icinga2/issues/5991"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2018-02-02T00:00:00.000Z",
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        }
      ],
      "problemTypes": [
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            {
              "description": "n/a",
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              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-02-02T08:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Icinga/icinga2/issues/5991"
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      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-6536",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
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                "vendor_name": "n/a"
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            {
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  "cveMetadata": {
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}

Sightings

Author	Source	Type	Date	Other

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

ubuntu-cve-2018-6536

Vulnerability from osv_ubuntu

CVE-2018-6536 (GCVE-0-2018-6536)

Tags

Sightings

Nomenclature