GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2024-21849 (GCVE-0-2024-21849)

Vulnerability from cvelistv5 – Published: 2024-02-14 16:30 – Updated: 2024-08-01 22:27
VLAI
Title
BIG-IP Websockets vulnerability
Summary
When an Advanced WAF/ASM security policy and a Websockets profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) process to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-14 19:23 UTC
CWE
  • CWE-466 - Return of Pointer Value Outside of Expected Range
Assigner
References
Impacted products
Vendor Product Version CPE status
F5 BIG-IP Unaffected: 17.1.0 , < * (custom)
Affected: 16.1.0 , < 16.1.4 (custom)
Unaffected: 15.1.0 , < * (semver)
guessed Create a notification for this product.
Date Public
2024-02-14 15:00
Credits
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-21849",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-02-14T19:23:40.078261Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:37:56.070Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-01T22:27:36.345Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://my.f5.com/manage/s/article/K000135873"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "modules": [
            "Advanced WAF",
            "ASM"
          ],
          "product": "BIG-IP",
          "vendor": "F5",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "17.1.0",
              "versionType": "custom"
            },
            {
              "lessThan": "16.1.4",
              "status": "affected",
              "version": "16.1.0",
              "versionType": "custom"
            },
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "15.1.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "F5"
        }
      ],
      "datePublic": "2024-02-14T15:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\n\n\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\n\n\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eWhen an Advanced WAF/ASM security policy and a Websockets profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) process to terminate.\u0026nbsp;\u0026nbsp;\u003c/span\u003e\u003c/span\u003eNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated."
            }
          ],
          "value": "\n\n\nWhen an Advanced WAF/ASM security policy and a Websockets profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) process to terminate.\u00a0\u00a0Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-466",
              "description": "CWE-466 Return of Pointer Value Outside of Expected Range",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-02-14T16:30:21.661Z",
        "orgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab",
        "shortName": "f5"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://my.f5.com/manage/s/article/K000135873"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "BIG-IP Websockets vulnerability",
      "x_generator": {
        "engine": "F5 SIRTBot v1.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab",
    "assignerShortName": "f5",
    "cveId": "CVE-2024-21849",
    "datePublished": "2024-02-14T16:30:21.661Z",
    "dateReserved": "2024-02-01T22:13:26.359Z",
    "dateUpdated": "2024-08-01T22:27:36.345Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-21849",
      "date": "2026-09-15",
      "epss": "0.00515",
      "percentile": "0.42428"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"16.1.0\", \"versionEndExcluding\": \"16.1.4\", \"matchCriteriaId\": \"95617B72-E7D8-44D2-AFF2-976595A72AFA\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"16.1.0\", \"versionEndExcluding\": \"16.1.4\", \"matchCriteriaId\": \"377DE308-CF91-488A-B296-30A3B09451D3\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"\\n\\n\\nWhen an Advanced WAF/ASM security policy and a Websockets profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) process to terminate.\\u00a0\\u00a0Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.\"}, {\"lang\": \"es\", \"value\": \"Cuando se configura una pol\\u00edtica de seguridad WAF/ASM avanzada y un perfil Websockets en un servidor virtual, el tr\\u00e1fico no divulgado puede hacer que finalice el proceso de Microkernel de gesti\\u00f3n de tr\\u00e1fico (TMM). Nota: Las versiones de software que han llegado al final del soporte t\\u00e9cnico (EoTS) no se eval\\u00faan.\"}]",
      "id": "CVE-2024-21849",
      "lastModified": "2024-12-12T19:10:52.200",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"f5sirt@f5.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}]}",
      "published": "2024-02-14T17:15:12.417",
      "references": "[{\"url\": \"https://my.f5.com/manage/s/article/K000135873\", \"source\": \"f5sirt@f5.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://my.f5.com/manage/s/article/K000135873\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "f5sirt@f5.com",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"f5sirt@f5.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-466\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-Other\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-21849\",\"sourceIdentifier\":\"f5sirt@f5.com\",\"published\":\"2024-02-14T17:15:12.417\",\"lastModified\":\"2026-06-17T07:10:16.637\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"\\n\\n\\nWhen an Advanced WAF/ASM security policy and a Websockets profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) process to terminate.\u00a0\u00a0Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.\"},{\"lang\":\"es\",\"value\":\"Cuando se configura una pol\u00edtica de seguridad WAF/ASM avanzada y un perfil Websockets en un servidor virtual, el tr\u00e1fico no divulgado puede hacer que finalice el proceso de Microkernel de gesti\u00f3n de tr\u00e1fico (TMM). Nota: Las versiones de software que han llegado al final del soporte t\u00e9cnico (EoTS) no se eval\u00faan.\"}],\"affected\":[{\"source\":\"f5sirt@f5.com\",\"affectedData\":[{\"vendor\":\"F5\",\"product\":\"BIG-IP\",\"defaultStatus\":\"unknown\",\"modules\":[\"Advanced WAF\",\"ASM\"],\"versions\":[{\"version\":\"17.1.0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"unaffected\"},{\"version\":\"16.1.0\",\"lessThan\":\"16.1.4\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"15.1.0\",\"lessThan\":\"*\",\"versionType\":\"semver\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"f5sirt@f5.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-02-14T19:23:40.078261Z\",\"id\":\"CVE-2024-21849\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"f5sirt@f5.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-466\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-Other\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"16.1.0\",\"versionEndExcluding\":\"16.1.4\",\"matchCriteriaId\":\"95617B72-E7D8-44D2-AFF2-976595A72AFA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"16.1.0\",\"versionEndExcluding\":\"16.1.4\",\"matchCriteriaId\":\"377DE308-CF91-488A-B296-30A3B09451D3\"}]}]}],\"references\":[{\"url\":\"https://my.f5.com/manage/s/article/K000135873\",\"source\":\"f5sirt@f5.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://my.f5.com/manage/s/article/K000135873\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2025-05-28T20:56:30+00:00",
      "cve": "CVE-2024-21849",
      "id": "CVE-2024-21849",
      "initial_release_date": "2024-02-14T15:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "BIG-IP Websockets vulnerability",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-21849.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://my.f5.com/manage/s/article/K000135873\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-01T22:27:36.345Z\"}}, {\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-21849\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-02-14T19:23:40.078261Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-23T19:01:10.395Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"BIG-IP Websockets vulnerability\", \"source\": {\"discovery\": \"INTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"F5\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"F5\", \"modules\": [\"Advanced WAF\", \"ASM\"], \"product\": \"BIG-IP\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"17.1.0\", \"lessThan\": \"*\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"16.1.0\", \"lessThan\": \"16.1.4\", \"versionType\": \"custom\"}, {\"status\": \"unaffected\", \"version\": \"15.1.0\", \"lessThan\": \"*\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unknown\"}], \"datePublic\": \"2024-02-14T15:00:00.000Z\", \"references\": [{\"url\": \"https://my.f5.com/manage/s/article/K000135873\", \"tags\": [\"vendor-advisory\"]}], \"x_generator\": {\"engine\": \"F5 SIRTBot v1.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"\\n\\n\\nWhen an Advanced WAF/ASM security policy and a Websockets profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) process to terminate.\\u00a0\\u00a0Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\\n\\n\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e\\n\\n\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eWhen an Advanced WAF/ASM security policy and a Websockets profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) process to terminate.\u0026nbsp;\u0026nbsp;\u003c/span\u003e\u003c/span\u003eNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-466\", \"description\": \"CWE-466 Return of Pointer Value Outside of Expected Range\"}]}], \"providerMetadata\": {\"orgId\": \"9dacffd4-cb11-413f-8451-fbbfd4ddc0ab\", \"shortName\": \"f5\", \"dateUpdated\": \"2024-02-14T16:30:21.661Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-21849\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-01T22:27:36.345Z\", \"dateReserved\": \"2024-02-01T22:13:26.359Z\", \"assignerOrgId\": \"9dacffd4-cb11-413f-8451-fbbfd4ddc0ab\", \"datePublished\": \"2024-02-14T16:30:21.661Z\", \"assignerShortName\": \"f5\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

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.


Loading…