Vulnerability-Lookup

FKIE_CVE-2018-14345

Vulnerability from fkie_nvd - Published: 2018-07-17 14:29 - Updated: 2026-06-17 01:40

Severity

7.5 (High) - CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

An issue was discovered in SDDM through 0.17.0. If configured with ReuseSession=true, the password is not checked for users with an already existing session. Any user with access to the system D-Bus can therefore unlock any graphical session. This is related to daemon/Display.cpp and helper/backend/PamBackend.cpp.

References

URL	Tags
cve@mitre.org	https://bugzilla.suse.com/show_bug.cgi?id=1101450	Issue Tracking, Patch, Third Party Advisory
cve@mitre.org	https://github.com/sddm/sddm/commit/147cec383892d143b5e02daa70f1e7def50f5d98	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://bugzilla.suse.com/show_bug.cgi?id=1101450	Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/sddm/sddm/commit/147cec383892d143b5e02daa70f1e7def50f5d98	Patch, Third Party Advisory

Impacted products

	Vendor	Product	Version
	sddm_project	sddm	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sddm_project:sddm:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EE2F0E6C-6C6C-4EBF-941F-226F9F4A7719",
              "versionEndIncluding": "0.17.0",
              "vulnerable": true
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in SDDM through 0.17.0. If configured with ReuseSession=true, the password is not checked for users with an already existing session. Any user with access to the system D-Bus can therefore unlock any graphical session. This is related to daemon/Display.cpp and helper/backend/PamBackend.cpp."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en SDDM hasta su versi\u00f3n 0.17.0. Si se configura con ReuseSession=true, la contrase\u00f1a no se comprueba para los usuarios con una sesi\u00f3n ya existente. Cualquier usuario con acceso al D-Bus del sistema puede, por lo tanto, desbloquear cualquier sesi\u00f3n gr\u00e1fica. Esto est\u00e1 relacionado con daemon/Display.cpp y helper/backend/PamBackend.cpp."
    }
  ],
  "id": "CVE-2018-14345",
  "lastModified": "2026-06-17T01:40:50.730",
  "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"
      }
    ]
  },
  "published": "2018-07-17T14:29:00.517",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
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    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/sddm/sddm/commit/147cec383892d143b5e02daa70f1e7def50f5d98"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=1101450"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/sddm/sddm/commit/147cec383892d143b5e02daa70f1e7def50f5d98"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        },
        {
          "lang": "en",
          "value": "CWE-613"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2018-14345 (GCVE-0-2018-14345)

Vulnerability from cvelistv5 – Published: 2018-07-17 14:00 – Updated: 2024-09-17 01:31

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://bugzilla.suse.com/show_bug.cgi?id=1101450	x_refsource_CONFIRM
https://github.com/sddm/sddm/commit/147cec383892d…	x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-05T09:21:41.578Z",
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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.
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.