fkie_cve-2021-22981
Vulnerability from fkie_nvd
Published
2021-02-12 18:15
Modified
2024-11-21 05:51
Severity ?
Summary
On all versions of BIG-IP 12.1.x and 11.6.x, the original TLS protocol includes a weakness in the master secret negotiation that is mitigated by the Extended Master Secret (EMS) extension defined in RFC 7627. TLS connections that do not use EMS are vulnerable to man-in-the-middle attacks during renegotiation. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| f5sirt@f5.com | https://support.f5.com/csp/article/K09121542 | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://support.f5.com/csp/article/K09121542 | Vendor Advisory |
Impacted products
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"cveTags": [],
"descriptions": [
{
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"value": "On all versions of BIG-IP 12.1.x and 11.6.x, the original TLS protocol includes a weakness in the master secret negotiation that is mitigated by the Extended Master Secret (EMS) extension defined in RFC 7627. TLS connections that do not use EMS are vulnerable to man-in-the-middle attacks during renegotiation. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated."
},
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"value": "En todas las versiones de BIG-IP 12.1.x y 11.6.x, el protocolo TLS original incluye una debilidad en la negociaci\u00f3n del secreto maestro que es mitigada por la extensi\u00f3n Extended Master Secret (EMS) definida en RFC 7627. Las conexiones TLS que no utilizan EMS son vulnerables a ataques man-in-the-middle durante la renegociaci\u00f3n.\u0026#xa0;Nota: No son evaluadas las versiones de software que han alcanzado End of Software Development (EoSD)"
}
],
"id": "CVE-2021-22981",
"lastModified": "2024-11-21T05:51:03.760",
"metrics": {
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"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
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"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.8,
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"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 4.9,
"obtainAllPrivilege": false,
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"source": "nvd@nist.gov",
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"published": "2021-02-12T18:15:12.797",
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"tags": [
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"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.