Vulnerability-Lookup

FKIE_CVE-2021-23050

Vulnerability from fkie_nvd - Published: 2021-09-14 13:15 - Updated: 2026-06-17 03:38

Severity

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

Summary

On BIG-IP Advanced WAF and BIG-IP ASM version 16.0.x before 16.0.1.2 and 15.1.x before 15.1.3 and NGINX App Protect on all versions before 3.5.0, when a cross-site request forgery (CSRF)-enabled policy is configured on a virtual server, an undisclosed HTML response may cause the bd process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

References

	URL	Tags
	f5sirt@f5.com	https://support.f5.com/csp/article/K44553214	Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://support.f5.com/csp/article/K44553214	Vendor Advisory

Impacted products

Vendor	Product	Version
f5	big-ip_advanced_web_application_firewall	*
f5	big-ip_advanced_web_application_firewall	*
f5	big-ip_application_security_manager	*
f5	big-ip_application_security_manager	*
f5	nginx_app_protect	*
f5	nginx_app_protect	*
f5	nginx_app_protect	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "BIG-IP Advanced WAF and BIG-IP ASM; NGINX App Protect",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "BIG-IP Advanced WAF and BIG-IP ASM 16.0.x before 16.0.1.2 and 15.1.x before 15.1.3"
            },
            {
              "status": "affected",
              "version": "NGINX App Protect all versions before 3.5.0"
            }
          ]
        }
      ],
      "source": "f5sirt@f5.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "59C90A98-C3A2-420D-8936-A094D3539AA2",
              "versionEndExcluding": "15.1.3.1",
              "versionStartIncluding": "15.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "633F777A-10B4-42B6-867C-FC32E38A4B1A",
              "versionEndExcluding": "16.0.1.2",
              "versionStartIncluding": "16.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E4B53FEB-1754-49D4-953D-146D92CAC3BF",
              "versionEndExcluding": "15.1.3.1",
              "versionStartIncluding": "15.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "CE26ED82-4D38-4165-990D-4967AE130059",
              "versionEndExcluding": "16.0.1.2",
              "versionStartIncluding": "16.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:f5:nginx_app_protect:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A5CB7297-C457-40B4-8643-CF59EC13865D",
              "versionEndIncluding": "1.3.0",
              "versionStartIncluding": "1.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:f5:nginx_app_protect:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E76351C7-2FA5-4B76-87F0-4BEB5DFC73D6",
              "versionEndIncluding": "2.3.0",
              "versionStartIncluding": "2.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:f5:nginx_app_protect:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "68577A25-8EF1-4143-8E2B-08B7D983337B",
              "versionEndExcluding": "3.5.0",
              "versionStartIncluding": "3.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "On BIG-IP Advanced WAF and BIG-IP ASM version 16.0.x before 16.0.1.2 and 15.1.x before 15.1.3 and NGINX App Protect on all versions before 3.5.0, when a cross-site request forgery (CSRF)-enabled policy is configured on a virtual server, an undisclosed HTML response may cause the bd process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."
    },
    {
      "lang": "es",
      "value": "En BIG-IP Advanced WAF y BIG-IP ASM versiones 16.0.x anteriores a 16.0.1.2 y versiones 15.1.x anteriores a 15.1.3 y NGINX App Protect en todas las versiones anteriores a 3.5.0, cuando es configurado una pol\u00edtica de tipo cross-site request forgery (CSRF) en un servidor virtual, una respuesta HTML no divulgada puede causar una finalizaci\u00f3n del proceso bd. Nota: Las versiones de software que han alcanzado End of Technical Support (EoTS) no son evaluadas"
    }
  ],
  "id": "CVE-2021-23050",
  "lastModified": "2026-06-17T03:38:16.877",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-09-14T13:15:11.093",
  "references": [
    {
      "source": "f5sirt@f5.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://support.f5.com/csp/article/K44553214"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://support.f5.com/csp/article/K44553214"
    }
  ],
  "sourceIdentifier": "f5sirt@f5.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-352"
        }
      ],
      "source": "f5sirt@f5.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-23050 (GCVE-0-2021-23050)

Vulnerability from cvelistv5 – Published: 2021-09-14 12:31 – Updated: 2024-08-03 18:58

Summary

Severity

No CVSS data available.

CWE

CWE-352

Assigner

f5 mitre root

References

1 reference

URL	Tags
https://support.f5.com/csp/article/K44553214	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	BIG-IP Advanced WAF and BIG-IP ASM; NGINX App Protect	Affected: BIG-IP Advanced WAF and BIG-IP ASM 16.0.x before 16.0.1.2 and 15.1.x before 15.1.3 Affected: NGINX App Protect all versions before 3.5.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:58:26.361Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support.f5.com/csp/article/K44553214"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "BIG-IP Advanced WAF and BIG-IP ASM; NGINX App Protect",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "BIG-IP Advanced WAF and BIG-IP ASM 16.0.x before 16.0.1.2 and 15.1.x before 15.1.3"
            },
            {
              "status": "affected",
              "version": "NGINX App Protect all versions before 3.5.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "On BIG-IP Advanced WAF and BIG-IP ASM version 16.0.x before 16.0.1.2 and 15.1.x before 15.1.3 and NGINX App Protect on all versions before 3.5.0, when a cross-site request forgery (CSRF)-enabled policy is configured on a virtual server, an undisclosed HTML response may cause the bd process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-352",
              "description": "CWE-352",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-09-14T12:31:38.000Z",
        "orgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab",
        "shortName": "f5"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://support.f5.com/csp/article/K44553214"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "f5sirt@f5.com",
          "ID": "CVE-2021-23050",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "BIG-IP Advanced WAF and BIG-IP ASM; NGINX App Protect",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "BIG-IP Advanced WAF and BIG-IP ASM 16.0.x before 16.0.1.2 and 15.1.x before 15.1.3"
                          },
                          {
                            "version_value": "NGINX App Protect all versions before 3.5.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "On BIG-IP Advanced WAF and BIG-IP ASM version 16.0.x before 16.0.1.2 and 15.1.x before 15.1.3 and NGINX App Protect on all versions before 3.5.0, when a cross-site request forgery (CSRF)-enabled policy is configured on a virtual server, an undisclosed HTML response may cause the bd process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-352"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://support.f5.com/csp/article/K44553214",
              "refsource": "MISC",
              "url": "https://support.f5.com/csp/article/K44553214"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab",
    "assignerShortName": "f5",
    "cveId": "CVE-2021-23050",
    "datePublished": "2021-09-14T12:31:38.000Z",
    "dateReserved": "2021-01-06T00:00:00.000Z",
    "dateUpdated": "2024-08-03T18:58:26.361Z",
    "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.