Vulnerability-Lookup

CVE-2023-22359 (GCVE-0-2023-22359)

Vulnerability from cvelistv5 – Published: 2023-06-26 06:51 – Updated: 2024-08-28 20:25

Title

User-enumeration in RestAPI

Summary

User enumeration in Checkmk <=2.2.0p4 allows an authenticated attacker to enumerate usernames.

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-28 20:25 UTC

CWE

CWE-203 - Observable Discrepancy

Assigner

Tribe29

References

1 reference

URL	Tags
https://checkmk.com/werk/15890

Impacted products

1 product

Vendor	Product	Version	CPE status
Tribe29	Checkmk	Affected: 2.2.0 , ≤ 2.2.0p4 (semver)	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2023-22359

Vulnerability from fkie_nvd - Published: 2023-06-26 07:15 - Updated: 2026-06-17 05:35

Severity

4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Summary

User enumeration in Checkmk <=2.2.0p4 allows an authenticated attacker to enumerate usernames.

References

	URL	Tags
	security@checkmk.com	https://checkmk.com/werk/15890	Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://checkmk.com/werk/15890	Vendor Advisory

Impacted products

Vendor	Product	Version
checkmk	checkmk	2.2.0
checkmk	checkmk	2.2.0
checkmk	checkmk	2.2.0
checkmk	checkmk	2.2.0
checkmk	checkmk	2.2.0
checkmk	checkmk	2.2.0
checkmk	checkmk	2.2.0
checkmk	checkmk	2.2.0
checkmk	checkmk	2.2.0
checkmk	checkmk	2.2.0
checkmk	checkmk	2.2.0
checkmk	checkmk	2.2.0
checkmk	checkmk	2.2.0
checkmk	checkmk	2.2.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Checkmk",
          "vendor": "Tribe29",
          "versions": [
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              "version": "2.2.0",
              "versionType": "semver"
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      ],
      "source": "security@checkmk.com"
    }
  ],
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              "criteria": "cpe:2.3:a:checkmk:checkmk:2.2.0:i1:*:*:*:*:*:*",
              "matchCriteriaId": "4F0B99A8-A124-43BD-B8AA-EECC9112346F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.2.0:p1:*:*:*:*:*:*",
              "matchCriteriaId": "3FB7221E-BE9F-4529-8E07-8AD547FA3208",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.2.0:p2:*:*:*:*:*:*",
              "matchCriteriaId": "7BCEB6FF-668F-4313-9264-0BF021AFC45F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.2.0:p3:*:*:*:*:*:*",
              "matchCriteriaId": "E2342E2D-58B0-43E7-8C01-DF4678520F39",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.2.0:p4:*:*:*:*:*:*",
              "matchCriteriaId": "1871B646-CA69-477F-B113-B901AC7B3934",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "User enumeration in Checkmk \u003c=2.2.0p4 allows an authenticated attacker to enumerate usernames."
    }
  ],
  "id": "CVE-2023-22359",
  "lastModified": "2026-06-17T05:35:09.950",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "security@checkmk.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-22359",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-08-28T20:25:16.139712Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-06-26T07:15:09.297",
  "references": [
    {
      "source": "security@checkmk.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://checkmk.com/werk/15890"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://checkmk.com/werk/15890"
    }
  ],
  "sourceIdentifier": "security@checkmk.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ],
      "source": "security@checkmk.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-R33Q-CCVX-F3W8

Vulnerability from github – Published: 2023-06-26 09:30 – Updated: 2024-04-04 05:09

Details

User enumeration in Checkmk <=2.2.0p4 allows an authenticated attacker to enumerate usernames.

Severity

4.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-22359"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-203"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-06-26T07:15:09Z",
    "severity": "MODERATE"
  },
  "details": "User enumeration in Checkmk \u003c=2.2.0p4 allows an authenticated attacker to enumerate usernames.",
  "id": "GHSA-r33q-ccvx-f3w8",
  "modified": "2024-04-04T05:09:48Z",
  "published": "2023-06-26T09:30:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-22359"
    },
    {
      "type": "WEB",
      "url": "https://checkmk.com/werk/15890"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2023-22359

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

User enumeration in Checkmk <=2.2.0p4 allows an authenticated attacker to enumerate usernames.

Aliases

CVE-2023-22359

Aliases

CVE-2023-22359

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-22359",
    "id": "GSD-2023-22359"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-22359"
      ],
      "details": "User enumeration in Checkmk \u003c=2.2.0p4 allows an authenticated attacker to enumerate usernames.",
      "id": "GSD-2023-22359",
      "modified": "2023-12-13T01:20:43.406005Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@checkmk.com",
        "ID": "CVE-2023-22359",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Checkmk",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c=",
                          "version_name": "2.2.0",
                          "version_value": "2.2.0p4"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Tribe29"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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          {
            "lang": "eng",
            "value": "User enumeration in Checkmk \u003c=2.2.0p4 allows an authenticated attacker to enumerate usernames."
          }
        ]
      },
      "impact": {
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          {
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-200",
                "lang": "eng",
                "value": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor"
              }
            ]
          }
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://checkmk.com/werk/15890",
            "refsource": "MISC",
            "url": "https://checkmk.com/werk/15890"
          }
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    },
    "nvd.nist.gov": {
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        "nodes": [
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            "children": [],
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                "vulnerable": true
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              {
                "cpe23Uri": "cpe:2.3:a:tribe29:checkmk:2.2.0:b4:*:*:*:*:*:*",
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              },
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              },
              {
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              },
              {
                "cpe23Uri": "cpe:2.3:a:tribe29:checkmk:2.2.0:b8:*:*:*:*:*:*",
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                "vulnerable": true
              },
              {
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                "vulnerable": true
              },
              {
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                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:a:tribe29:checkmk:2.2.0:p3:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:tribe29:checkmk:2.2.0:p4:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
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      },
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          "ASSIGNER": "security@checkmk.com",
          "ID": "CVE-2023-22359"
        },
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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              "value": "User enumeration in Checkmk \u003c=2.2.0p4 allows an authenticated attacker to enumerate usernames."
            }
          ]
        },
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                  "lang": "en",
                  "value": "NVD-CWE-noinfo"
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          ]
        },
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            {
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              "refsource": "MISC",
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              "url": "https://checkmk.com/werk/15890"
            }
          ]
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
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    }
  }
}

ubuntu-cve-2023-22359

Vulnerability from osv_ubuntu

Published

2023-06-26 07:15

Modified

2025-10-24 05:01

Summary

Details

User enumeration in Checkmk <=2.2.0p4 allows an authenticated attacker to enumerate usernames.

Severity

4.3 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

4.3 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2023-22359	REPORT
	https://www.cve.org/CVERecord?id=CVE-2023-22359	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "check-mk-agent",
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1"
          },
          {
            "binary_name": "check-mk-agent-logwatch",
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1"
          },
          {
            "binary_name": "check-mk-config-icinga",
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1"
          },
          {
            "binary_name": "check-mk-config-nagios3",
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1"
          },
          {
            "binary_name": "check-mk-livestatus",
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1"
          },
          {
            "binary_name": "check-mk-multisite",
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1"
          },
          {
            "binary_name": "check-mk-server",
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "check-mk",
        "purl": "pkg:deb/ubuntu/check-mk@1.2.6p12-1ubuntu0.16.04.1+esm1?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.6p5-1",
        "1.2.6p12-1",
        "1.2.6p12-1ubuntu0.16.04.1",
        "1.2.6p12-1ubuntu0.16.04.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "check-mk-agent",
            "binary_version": "1.2.8p16-1ubuntu0.2"
          },
          {
            "binary_name": "check-mk-agent-logwatch",
            "binary_version": "1.2.8p16-1ubuntu0.2"
          },
          {
            "binary_name": "check-mk-config-icinga",
            "binary_version": "1.2.8p16-1ubuntu0.2"
          },
          {
            "binary_name": "check-mk-livestatus",
            "binary_version": "1.2.8p16-1ubuntu0.2"
          },
          {
            "binary_name": "check-mk-multisite",
            "binary_version": "1.2.8p16-1ubuntu0.2"
          },
          {
            "binary_name": "check-mk-server",
            "binary_version": "1.2.8p16-1ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "check-mk",
        "purl": "pkg:deb/ubuntu/check-mk@1.2.8p16-1ubuntu0.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.8p16-1ubuntu0.1",
        "1.2.8p16-1ubuntu0.2"
      ]
    }
  ],
  "aliases": [],
  "details": "User enumeration in Checkmk \u003c=2.2.0p4 allows an authenticated attacker to enumerate usernames.",
  "id": "UBUNTU-CVE-2023-22359",
  "modified": "2025-10-24T05:01:46Z",
  "published": "2023-06-26T07:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-22359"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-22359"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-22359"
  ]
}

WID-SEC-W-2023-1558

Vulnerability from csaf_certbund - Published: 2023-06-25 22:00 - Updated: 2023-06-25 22:00

Summary

tribe29 checkmk: Schwachstelle ermöglicht Offenlegung von Informationen

Severity

Niedrig

Scope

1 vulnerability in this advisory, including CVE-2023-22359.

CVE-2023-22359

Es existiert eine Schwachstelle in tribe29 checkmk. Im "user_config" RestAPI Endpunkt fehlt eine Berechtigungsprüfung. Ein authentisierter Angreifer kann dadurch die Existenz von Benutzerkennungen offenlegen.

Open the full advisory

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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2023-22359 (GCVE-0-2023-22359)

FKIE_CVE-2023-22359

GHSA-R33Q-CCVX-F3W8

GSD-2023-22359

ubuntu-cve-2023-22359

Vulnerability from osv_ubuntu

WID-SEC-W-2023-1558

Tags

Sightings

Nomenclature

Related by attack behaviour