Vulnerability-Lookup

FKIE_CVE-2021-32465

Vulnerability from fkie_nvd - Published: 2021-08-04 19:15 - Updated: 2026-06-17 03:53

Severity

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

Summary

An incorrect permission preservation vulnerability in Trend Micro Apex One, Apex One as a Service and OfficeScan XG SP1 could allow a remote user to perform an attack and bypass authentication on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

References

URL	Tags
security@trendmicro.com	https://success.trendmicro.com/jp/solution/000287796	Vendor Advisory
security@trendmicro.com	https://success.trendmicro.com/solution/000287819	Vendor Advisory
security@trendmicro.com	https://www.zerodayinitiative.com/advisories/ZDI-21-911/	Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108	https://success.trendmicro.com/jp/solution/000287796	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://success.trendmicro.com/solution/000287819	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.zerodayinitiative.com/advisories/ZDI-21-911/	Third Party Advisory, VDB Entry

Impacted products

	Vendor	Product	Version
	trendmicro	apex_one	2019
	trendmicro	officescan	xg

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Trend Micro Apex One",
          "vendor": "Trend Micro",
          "versions": [
            {
              "status": "affected",
              "version": "2019, SaaS"
            }
          ]
        },
        {
          "product": "Trend Micro OfficeScan",
          "vendor": "Trend Micro",
          "versions": [
            {
              "status": "affected",
              "version": "XG SP1"
            }
          ]
        }
      ],
      "source": "security@trendmicro.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:*:*:*:*",
              "matchCriteriaId": "AF019D2D-C426-4D2D-A254-442CE777B41E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:trendmicro:officescan:xg:sp1:*:*:*:*:*:*",
              "matchCriteriaId": "64600B42-4884-41F2-A683-AE1EDB79372E",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An incorrect permission preservation vulnerability in Trend Micro Apex One, Apex One as a Service and OfficeScan XG SP1 could allow a remote user to perform an attack and bypass authentication on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de conservaci\u00f3n de permisos incorrecta en Trend Micro Apex One, Apex One as a Service y OfficeScan XG SP1, podr\u00eda permitir a un usuario remoto llevar a cabo un ataque y omitir la autenticaci\u00f3n en las instalaciones afectadas. Nota: un atacante debe obtener primero la habilidad de ejecutar c\u00f3digo poco privilegiado en el sistema de destino para poder explotar esta vulnerabilidad"
    }
  ],
  "id": "CVE-2021-32465",
  "lastModified": "2026-06-17T03:53:00.683",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-08-04T19:15:08.470",
  "references": [
    {
      "source": "security@trendmicro.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://success.trendmicro.com/jp/solution/000287796"
    },
    {
      "source": "security@trendmicro.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://success.trendmicro.com/solution/000287819"
    },
    {
      "source": "security@trendmicro.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-911/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://success.trendmicro.com/jp/solution/000287796"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://success.trendmicro.com/solution/000287819"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-911/"
    }
  ],
  "sourceIdentifier": "security@trendmicro.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-281"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-32465 (GCVE-0-2021-32465)

Vulnerability from cvelistv5 – Published: 2021-08-04 18:29 – Updated: 2024-08-03 23:17

Summary

Severity

No CVSS data available.

CWE

Incorrect Permission Preservation Authentication Bypass

Assigner

trendmicro mitre root

References

3 references

URL	Tags
https://success.trendmicro.com/solution/000287819	x_refsource_MISC
https://success.trendmicro.com/jp/solution/000287796	x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
Trend Micro	Trend Micro Apex One	Affected: 2019, SaaS
Trend Micro	Trend Micro OfficeScan	Affected: XG SP1

Show details on NVD website

JSON

To clipboard

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        ],
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    ],
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              "version": "2019, SaaS"
            }
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        },
        {
          "product": "Trend Micro OfficeScan",
          "vendor": "Trend Micro",
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              "version": "XG SP1"
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        }
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      "problemTypes": [
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              {
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                          {
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                        ]
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                    },
                    {
                      "product_name": "Trend Micro OfficeScan",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "XG SP1"
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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.