Vulnerability-Lookup

FKIE_CVE-2022-31256

Vulnerability from fkie_nvd - Published: 2022-10-26 09:15 - Updated: 2026-06-17 04:45

Severity

7.7 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

A Improper Link Resolution Before File Access ('Link Following') vulnerability in a script called by the sendmail systemd service of openSUSE Factory allows local attackers to escalate from user mail to root. This issue affects: SUSE openSUSE Factory sendmail versions prior to 8.17.1-1.1.

References

	URL	Tags
	meissner@suse.de	https://bugzilla.suse.com/show_bug.cgi?id=1204696	Issue Tracking, Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://bugzilla.suse.com/show_bug.cgi?id=1204696	Issue Tracking, Vendor Advisory

Impacted products

	Vendor	Product	Version
	opensuse	factory	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "openSUSE Factory",
          "vendor": "SUSE",
          "versions": [
            {
              "lessThan": "8.17.1-1.1",
              "status": "affected",
              "version": "sendmail",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "meissner@suse.de"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:opensuse:factory:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "42986DFB-497C-468C-A035-8EE2D3A92A38",
              "versionEndExcluding": "8.17.1-1.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Improper Link Resolution Before File Access (\u0027Link Following\u0027) vulnerability in a script called by the sendmail systemd service of openSUSE Factory allows local attackers to escalate from user mail to root. This issue affects: SUSE openSUSE Factory sendmail versions prior to 8.17.1-1.1."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Resoluci\u00f3n de Enlaces Inapropiada Antes del Acceso a Archivos (\"Enlace Siguiente\") en un script llamado por el servicio systemd de sendmail de openSUSE Factory permite a atacantes locales escalar desde el correo de usuario a root. Este problema afecta a: Las versiones de sendmail de SUSE openSUSE Factory anteriores a la 8.17.1-1.1"
    }
  ],
  "id": "CVE-2022-31256",
  "lastModified": "2026-06-17T04:45:14.233",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 5.2,
        "source": "meissner@suse.de",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-31256",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-05-09T19:11:41.776330Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-10-26T09:15:15.613",
  "references": [
    {
      "source": "meissner@suse.de",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=1204696"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=1204696"
    }
  ],
  "sourceIdentifier": "meissner@suse.de",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-59"
        }
      ],
      "source": "meissner@suse.de",
      "type": "Secondary"
    }
  ]
}

CVE-2022-31256 (GCVE-0-2022-31256)

Vulnerability from cvelistv5 – Published: 2022-10-26 08:55 – Updated: 2025-05-09 19:11

Title

sendmail: mail to root privilege escalation via sm-client.pre script

Summary

Severity

7.7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-09 19:11 UTC

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

suse mitre root

References

1 reference

URL	Tags
https://bugzilla.suse.com/show_bug.cgi?id=1204696

Impacted products

1 product

Vendor	Product	Version
SUSE	openSUSE Factory	Affected: sendmail , < 8.17.1-1.1 (custom)

Date Public

2022-10-26 00:00

Credits

Matthias Gerstner and Filippo Bonazzi from SUSE

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T07:11:39.944Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.suse.com/show_bug.cgi?id=1204696"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-31256",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-09T19:11:41.776330Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-09T19:11:55.650Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "openSUSE Factory",
          "vendor": "SUSE",
          "versions": [
            {
              "lessThan": "8.17.1-1.1",
              "status": "affected",
              "version": "sendmail",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Matthias Gerstner and Filippo Bonazzi from SUSE"
        }
      ],
      "datePublic": "2022-10-26T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A Improper Link Resolution Before File Access (\u0027Link Following\u0027) vulnerability in a script called by the sendmail systemd service of openSUSE Factory allows local attackers to escalate from user mail to root. This issue affects: SUSE openSUSE Factory sendmail versions prior to 8.17.1-1.1."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "CWE-59: Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-10-26T00:00:00.000Z",
        "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
        "shortName": "suse"
      },
      "references": [
        {
          "url": "https://bugzilla.suse.com/show_bug.cgi?id=1204696"
        }
      ],
      "source": {
        "advisory": "https://bugzilla.suse.com/show_bug.cgi?id=1204696",
        "defect": [
          "1204696"
        ],
        "discovery": "INTERNAL"
      },
      "title": "sendmail: mail to root privilege escalation via sm-client.pre script",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
    "assignerShortName": "suse",
    "cveId": "CVE-2022-31256",
    "datePublished": "2022-10-26T08:55:09.458Z",
    "dateReserved": "2022-05-20T00:00:00.000Z",
    "dateUpdated": "2025-05-09T19:11:55.650Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.