Vulnerability-Lookup

FKIE_CVE-2021-33256

Vulnerability from fkie_nvd - Published: 2021-08-09 14:15 - Updated: 2026-06-17 03:54

Severity

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

Summary

A CSV injection vulnerability on the login panel of ManageEngine ADSelfService Plus Version: 6.1 Build No: 6101 can be exploited by an unauthenticated user. The j_username parameter seems to be vulnerable and a reverse shell could be obtained if a privileged user exports "User Attempts Audit Report" as CSV file. Note: The vendor disputes this vulnerability, claiming "This is not a valid vulnerability in our ADSSP product. We don't see this as a security issue at our side.

References

	URL	Tags
	cve@mitre.org	https://docs.unsafe-inline.com/0day/manageengine-adselfservice-plus-6.1-csv-injection	Exploit, Third Party Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://docs.unsafe-inline.com/0day/manageengine-adselfservice-plus-6.1-csv-injection	Exploit, Third Party Advisory

Impacted products

	Vendor	Product	Version
	zohocorp	manageengine_adselfservice_plus	6.1

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:zohocorp:manageengine_adselfservice_plus:6.1:6101:*:*:*:*:*:*",
              "matchCriteriaId": "6FA21683-29F7-44EB-84C6-D29C6C64DE97",
              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
        }
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  ],
  "cveTags": [
    {
      "sourceIdentifier": "cve@mitre.org",
      "tags": [
        "disputed"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A CSV injection vulnerability on the login panel of ManageEngine ADSelfService Plus Version: 6.1 Build No: 6101 can be exploited by an unauthenticated user. The j_username parameter seems to be vulnerable and a reverse shell could be obtained if a privileged user exports \"User Attempts Audit Report\" as CSV file. Note: The vendor disputes this vulnerability, claiming \"This is not a valid vulnerability in our ADSSP product. We don\u0027t see this as a security issue at our side."
    },
    {
      "lang": "es",
      "value": "** EN DISPUTA ** Una vulnerabilidad de inyecci\u00f3n CSV en el panel de inicio de sesi\u00f3n de ManageEngine ADSelfService Plus Versi\u00f3n: 6.1 Build No: 6101, puede ser explotada por un usuario no autenticado. El par\u00e1metro j_username parece ser vulnerable y se podr\u00eda obtener un shell inverso si un usuario con privilegios exporta \"User Attempts Audit Report\" como archivo CSV. Nota: El proveedor disputa esta vulnerabilidad, afirmando que \"Esta no es una vulnerabilidad v\u00e1lida en nuestro producto ADSSP. No vemos esto como un problema de seguridad por nuestra parte\"."
    }
  ],
  "id": "CVE-2021-33256",
  "lastModified": "2026-06-17T03:54:23.677",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 9.3,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-08-09T14:15:31.280",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://docs.unsafe-inline.com/0day/manageengine-adselfservice-plus-6.1-csv-injection"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://docs.unsafe-inline.com/0day/manageengine-adselfservice-plus-6.1-csv-injection"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1236"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-33256 (GCVE-0-2021-33256)

Vulnerability from cvelistv5 – Published: 2021-08-09 13:28 – Updated: 2024-08-03 23:42 Disputed

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2265 records in the last 180 days details

References

1 reference

URL	Tags
https://docs.unsafe-inline.com/0day/manageengine-…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:42:20.271Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://docs.unsafe-inline.com/0day/manageengine-adselfservice-plus-6.1-csv-injection"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
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            }
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      ],
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-08-25T18:14:17.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://docs.unsafe-inline.com/0day/manageengine-adselfservice-plus-6.1-csv-injection"
        }
      ],
      "tags": [
        "disputed"
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-33256",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
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                      }
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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            }
          ]
        },
        "problemtype": {
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  "cveMetadata": {
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    "assignerShortName": "mitre",
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    "datePublished": "2021-08-09T13:28:42.000Z",
    "dateReserved": "2021-05-20T00:00:00.000Z",
    "dateUpdated": "2024-08-03T23:42:20.271Z",
    "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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.

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