Vulnerability-Lookup

FKIE_CVE-2021-22113

Vulnerability from fkie_nvd - Published: 2021-02-23 17:15 - Updated: 2026-06-17 03:36

Severity

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

Summary

Applications using the “Sensitive Headers” functionality in Spring Cloud Netflix Zuul 2.2.6.RELEASE and below may be vulnerable to bypassing the “Sensitive Headers” restriction when executing requests with specially constructed URLs. Applications that use Spring Security's StrictHttpFirewall (enabled by default for all URLs) are not affected by the vulnerability, as they reject requests that allow bypassing.

References

	URL	Tags
	security@vmware.com	https://tanzu.vmware.com/security/cve-2021-22113	Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://tanzu.vmware.com/security/cve-2021-22113	Vendor Advisory

Impacted products

	Vendor	Product	Version
	vmware	spring_cloud_netflix_zuul	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Spring Cloud Netflix Zuul",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "2.2.6 and below"
            }
          ]
        }
      ],
      "source": "security@vmware.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:vmware:spring_cloud_netflix_zuul:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F2CDA0AD-BEFC-446E-A2E1-918A75AA47E2",
              "versionEndIncluding": "2.2.6",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Applications using the \u201cSensitive Headers\u201d functionality in Spring Cloud Netflix Zuul 2.2.6.RELEASE and below may be vulnerable to bypassing the \u201cSensitive Headers\u201d restriction when executing requests with specially constructed URLs. Applications that use Spring Security\u0027s StrictHttpFirewall (enabled by default for all URLs) are not affected by the vulnerability, as they reject requests that allow bypassing."
    },
    {
      "lang": "es",
      "value": "Unas aplicaciones que usan la funcionalidad de \"Sensitive Headers\" en Spring Cloud Netflix Zuul versiones 2.2.6.RELEASE y anteriores, pueden ser vulnerables al omitir la restricci\u00f3n \"Sensitive Headers\" cuando se ejecutan peticiones con URL especialmente construidas.\u0026#xa0;Unas aplicaciones que usan StrictHttpFirewall de Spring Security (habilitado por defecto para todas las URL) no est\u00e1n afectadas por la vulnerabilidad, ya que rechazan unas peticiones que permiten la omisi\u00f3n"
    }
  ],
  "id": "CVE-2021-22113",
  "lastModified": "2026-06-17T03:36:38.373",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-02-23T17:15:13.833",
  "references": [
    {
      "source": "security@vmware.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tanzu.vmware.com/security/cve-2021-22113"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tanzu.vmware.com/security/cve-2021-22113"
    }
  ],
  "sourceIdentifier": "security@vmware.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-22113 (GCVE-0-2021-22113)

Vulnerability from cvelistv5 – Published: 2021-02-23 16:04 – Updated: 2024-08-03 18:30

Summary

Severity

No CVSS data available.

CWE

Sensitive Headers restriction bypass

Assigner

vmware CNA under the mitre root

CNA scorecard C 64/100 over 228 records in the last 180 days details

References

1 reference

URL	Tags
https://tanzu.vmware.com/security/cve-2021-22113	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
n/a	Spring Cloud Netflix Zuul	Affected: 2.2.6 and below

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:30:23.940Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://tanzu.vmware.com/security/cve-2021-22113"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Spring Cloud Netflix Zuul",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "2.2.6 and below"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Applications using the \u201cSensitive Headers\u201d functionality in Spring Cloud Netflix Zuul 2.2.6.RELEASE and below may be vulnerable to bypassing the \u201cSensitive Headers\u201d restriction when executing requests with specially constructed URLs. Applications that use Spring Security\u0027s StrictHttpFirewall (enabled by default for all URLs) are not affected by the vulnerability, as they reject requests that allow bypassing."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Sensitive Headers restriction bypass",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-02-23T16:04:45.000Z",
        "orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d",
        "shortName": "vmware"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://tanzu.vmware.com/security/cve-2021-22113"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@vmware.com",
          "ID": "CVE-2021-22113",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Spring Cloud Netflix Zuul",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "2.2.6 and below"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
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        "data_version": "4.0",
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            }
          ]
        },
        "problemtype": {
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  "cveMetadata": {
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    "datePublished": "2021-02-23T16:04:45.000Z",
    "dateReserved": "2021-01-04T00:00:00.000Z",
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    "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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