Vulnerability-Lookup

VAR-202102-0814

Vulnerability from variot - Updated: 2024-11-23 22:54

On BIG-IP Advanced WAF and ASM version 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.6, and all 12.1.x versions, when the BIG-IP ASM system processes WebSocket requests with JSON payloads, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated. BIG-IP Advanced WAF and ASM Is vulnerable to a resource exhaustion.Denial of service (DoS) It may be put into a state

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CVE-2021-22976 (GCVE-0-2021-22976)

Vulnerability from cvelistv5 – Published: 2021-02-12 17:43 – Updated: 2024-08-03 18:58

Summary

Severity

No CVSS data available.

CWE

Assigner

f5 CNA under the mitre root

CNA scorecard B 84/100 over 87 records in the last 180 days details

References

1 reference

URL	Tags
https://support.f5.com/csp/article/K88230177	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	BIG-IP Advanced WAF & BIG-IP ASM	Affected: 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.6, and all 12.1.x versions

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:58:26.167Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          {
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              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support.f5.com/csp/article/K88230177"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "BIG-IP Advanced WAF \u0026 BIG-IP ASM",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.6, and all 12.1.x versions"
            }
          ]
        }
      ],
      "descriptions": [
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          "lang": "en",
          "value": "On BIG-IP Advanced WAF and ASM version 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.6, and all 12.1.x versions, when the BIG-IP ASM system processes WebSocket requests with JSON payloads, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "description": "DoS",
              "lang": "en",
              "type": "text"
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      "references": [
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          "tags": [
            "x_refsource_MISC"
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          "url": "https://support.f5.com/csp/article/K88230177"
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      "x_legacyV4Record": {
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          "ASSIGNER": "f5sirt@f5.com",
          "ID": "CVE-2021-22976",
          "STATE": "PUBLIC"
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        "affects": {
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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.

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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