VAR-202012-0727
Vulnerability from variot - Updated: 2023-12-18 13:37On BIG-IP LTM/CGNAT version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, and 13.1.0-13.1.3.5, when processing NAT66 traffic with Port Block Allocation (PBA) mode and SP-DAG enabled, and dag-ipv6-prefix-len configured with a value less than the default of 128, an undisclosed traffic pattern may cause the Traffic Management Microkernel (TMM) to restart. F5 BIG-IP is an application delivery platform integrated with network traffic management, application security management, load balancing and other functions of the US company F5. There is a security vulnerability in F5 BIG-IP LTM/CGNAT, which can be exploited by an attacker to trigger a fatal error through NAT66 of F5 BIG-IP LTM CGNAT to trigger a denial of service
Show details on source website{
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
"affected_products": {
"@id": "https://www.variotdbs.pl/ref/affected_products"
},
"configurations": {
"@id": "https://www.variotdbs.pl/ref/configurations"
},
"credits": {
"@id": "https://www.variotdbs.pl/ref/credits"
},
"cvss": {
"@id": "https://www.variotdbs.pl/ref/cvss/"
},
"description": {
"@id": "https://www.variotdbs.pl/ref/description/"
},
"exploit_availability": {
"@id": "https://www.variotdbs.pl/ref/exploit_availability/"
},
"external_ids": {
"@id": "https://www.variotdbs.pl/ref/external_ids/"
},
"iot": {
"@id": "https://www.variotdbs.pl/ref/iot/"
},
"iot_taxonomy": {
"@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
},
"patch": {
"@id": "https://www.variotdbs.pl/ref/patch/"
},
"problemtype_data": {
"@id": "https://www.variotdbs.pl/ref/problemtype_data/"
},
"references": {
"@id": "https://www.variotdbs.pl/ref/references/"
},
"sources": {
"@id": "https://www.variotdbs.pl/ref/sources/"
},
"sources_release_date": {
"@id": "https://www.variotdbs.pl/ref/sources_release_date/"
},
"sources_update_date": {
"@id": "https://www.variotdbs.pl/ref/sources_update_date/"
},
"threat_type": {
"@id": "https://www.variotdbs.pl/ref/threat_type/"
},
"title": {
"@id": "https://www.variotdbs.pl/ref/title/"
},
"type": {
"@id": "https://www.variotdbs.pl/ref/type/"
}
},
"@id": "https://www.variotdbs.pl/vuln/VAR-202012-0727",
"affected_products": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/affected_products#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"model": "big-ip carrier-grade nat",
"scope": "gte",
"trust": 1.0,
"vendor": "f5",
"version": "14.1.0"
},
{
"model": "big-ip carrier-grade nat",
"scope": "gte",
"trust": 1.0,
"vendor": "f5",
"version": "16.0.0"
},
{
"model": "big-ip local traffic manager",
"scope": "lt",
"trust": 1.0,
"vendor": "f5",
"version": "14.1.3.1"
},
{
"model": "big-ip carrier-grade nat",
"scope": "gte",
"trust": 1.0,
"vendor": "f5",
"version": "15.1.0"
},
{
"model": "big-ip local traffic manager",
"scope": "gte",
"trust": 1.0,
"vendor": "f5",
"version": "14.1.0"
},
{
"model": "big-ip carrier-grade nat",
"scope": "gte",
"trust": 1.0,
"vendor": "f5",
"version": "13.1.0"
},
{
"model": "big-ip local traffic manager",
"scope": "lt",
"trust": 1.0,
"vendor": "f5",
"version": "16.0.1"
},
{
"model": "big-ip local traffic manager",
"scope": "lte",
"trust": 1.0,
"vendor": "f5",
"version": "13.1.3"
},
{
"model": "big-ip local traffic manager",
"scope": "gte",
"trust": 1.0,
"vendor": "f5",
"version": "16.0.0"
},
{
"model": "big-ip local traffic manager",
"scope": "lt",
"trust": 1.0,
"vendor": "f5",
"version": "15.1.1"
},
{
"model": "big-ip local traffic manager",
"scope": "gte",
"trust": 1.0,
"vendor": "f5",
"version": "15.1.0"
},
{
"model": "big-ip carrier-grade nat",
"scope": "lt",
"trust": 1.0,
"vendor": "f5",
"version": "14.1.3.1"
},
{
"model": "big-ip carrier-grade nat",
"scope": "lte",
"trust": 1.0,
"vendor": "f5",
"version": "13.1.3"
},
{
"model": "big-ip local traffic manager",
"scope": "gte",
"trust": 1.0,
"vendor": "f5",
"version": "13.1.0"
},
{
"model": "big-ip carrier-grade nat",
"scope": "lt",
"trust": 1.0,
"vendor": "f5",
"version": "16.0.1"
},
{
"model": "big-ip carrier-grade nat",
"scope": "lt",
"trust": 1.0,
"vendor": "f5",
"version": "15.1.1"
}
],
"sources": [
{
"db": "NVD",
"id": "CVE-2020-27720"
}
]
},
"configurations": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/configurations#",
"children": {
"@container": "@list"
},
"cpe_match": {
"@container": "@list"
},
"data": {
"@container": "@list"
},
"nodes": {
"@container": "@list"
}
},
"data": [
{
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "13.1.3",
"versionStartIncluding": "13.1.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "14.1.3.1",
"versionStartIncluding": "14.1.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "15.1.1",
"versionStartIncluding": "15.1.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "16.0.1",
"versionStartIncluding": "16.0.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "13.1.3",
"versionStartIncluding": "13.1.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "14.1.3.1",
"versionStartIncluding": "14.1.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "15.1.1",
"versionStartIncluding": "15.1.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "16.0.1",
"versionStartIncluding": "16.0.0",
"vulnerable": true
}
],
"operator": "OR"
}
]
}
],
"sources": [
{
"db": "NVD",
"id": "CVE-2020-27720"
}
]
},
"cve": "CVE-2020-27720",
"cvss": {
"@context": {
"cvssV2": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
},
"cvssV3": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
},
"severity": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/cvss/severity#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/severity"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"cvssV2": [
{
"acInsufInfo": false,
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"author": "NVD",
"availabilityImpact": "PARTIAL",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"integrityImpact": "NONE",
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"trust": 1.0,
"userInteractionRequired": false,
"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
{
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"author": "VULHUB",
"availabilityImpact": "PARTIAL",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"exploitabilityScore": 8.6,
"id": "VHN-371831",
"impactScore": 2.9,
"integrityImpact": "NONE",
"severity": "MEDIUM",
"trust": 0.1,
"vectorString": "AV:N/AC:M/AU:N/C:N/I:N/A:P",
"version": "2.0"
}
],
"cvssV3": [
{
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"author": "NVD",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"trust": 1.0,
"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"
}
],
"severity": [
{
"author": "NVD",
"id": "CVE-2020-27720",
"trust": 1.0,
"value": "HIGH"
},
{
"author": "CNNVD",
"id": "CNNVD-202012-1278",
"trust": 0.6,
"value": "HIGH"
},
{
"author": "VULHUB",
"id": "VHN-371831",
"trust": 0.1,
"value": "MEDIUM"
}
]
}
],
"sources": [
{
"db": "VULHUB",
"id": "VHN-371831"
},
{
"db": "NVD",
"id": "CVE-2020-27720"
},
{
"db": "CNNVD",
"id": "CNNVD-202012-1278"
}
]
},
"description": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/description#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "On BIG-IP LTM/CGNAT version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, and 13.1.0-13.1.3.5, when processing NAT66 traffic with Port Block Allocation (PBA) mode and SP-DAG enabled, and dag-ipv6-prefix-len configured with a value less than the default of 128, an undisclosed traffic pattern may cause the Traffic Management Microkernel (TMM) to restart. F5 BIG-IP is an application delivery platform integrated with network traffic management, application security management, load balancing and other functions of the US company F5. There is a security vulnerability in F5 BIG-IP LTM/CGNAT, which can be exploited by an attacker to trigger a fatal error through NAT66 of F5 BIG-IP LTM CGNAT to trigger a denial of service",
"sources": [
{
"db": "NVD",
"id": "CVE-2020-27720"
},
{
"db": "VULHUB",
"id": "VHN-371831"
}
],
"trust": 0.99
},
"external_ids": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/external_ids#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"db": "NVD",
"id": "CVE-2020-27720",
"trust": 1.7
},
{
"db": "CNNVD",
"id": "CNNVD-202012-1278",
"trust": 0.7
},
{
"db": "AUSCERT",
"id": "ESB-2020.4491",
"trust": 0.6
},
{
"db": "VULHUB",
"id": "VHN-371831",
"trust": 0.1
}
],
"sources": [
{
"db": "VULHUB",
"id": "VHN-371831"
},
{
"db": "NVD",
"id": "CVE-2020-27720"
},
{
"db": "CNNVD",
"id": "CNNVD-202012-1278"
}
]
},
"id": "VAR-202012-0727",
"iot": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/iot#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": true,
"sources": [
{
"db": "VULHUB",
"id": "VHN-371831"
}
],
"trust": 0.01
},
"last_update_date": "2023-12-18T13:37:36.718000Z",
"patch": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/patch#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"title": "F5 BIG-IP LTM/CGNAT Security vulnerabilities",
"trust": 0.6,
"url": "http://www.cnnvd.org.cn/web/xxk/bdxqbyid.tag?id=137965"
}
],
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-202012-1278"
}
]
},
"problemtype_data": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"problemtype": "NVD-CWE-noinfo",
"trust": 1.0
}
],
"sources": [
{
"db": "NVD",
"id": "CVE-2020-27720"
}
]
},
"references": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/references#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"trust": 1.7,
"url": "https://support.f5.com/csp/article/k04048104"
},
{
"trust": 0.6,
"url": "https://www.auscert.org.au/bulletins/esb-2020.4491/"
},
{
"trust": 0.6,
"url": "https://vigilance.fr/vulnerability/f5-big-ip-ltm-cgnat-denial-of-service-via-nat66-34142"
},
{
"trust": 0.6,
"url": "https://nvd.nist.gov/vuln/detail/cve-2020-27720"
}
],
"sources": [
{
"db": "VULHUB",
"id": "VHN-371831"
},
{
"db": "NVD",
"id": "CVE-2020-27720"
},
{
"db": "CNNVD",
"id": "CNNVD-202012-1278"
}
]
},
"sources": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#",
"data": {
"@container": "@list"
}
},
"data": [
{
"db": "VULHUB",
"id": "VHN-371831"
},
{
"db": "NVD",
"id": "CVE-2020-27720"
},
{
"db": "CNNVD",
"id": "CNNVD-202012-1278"
}
]
},
"sources_release_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2020-12-24T00:00:00",
"db": "VULHUB",
"id": "VHN-371831"
},
{
"date": "2020-12-24T16:15:15.087000",
"db": "NVD",
"id": "CVE-2020-27720"
},
{
"date": "2020-12-17T00:00:00",
"db": "CNNVD",
"id": "CNNVD-202012-1278"
}
]
},
"sources_update_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2020-12-28T00:00:00",
"db": "VULHUB",
"id": "VHN-371831"
},
{
"date": "2020-12-28T17:25:44.860000",
"db": "NVD",
"id": "CVE-2020-27720"
},
{
"date": "2021-01-05T00:00:00",
"db": "CNNVD",
"id": "CNNVD-202012-1278"
}
]
},
"threat_type": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/threat_type#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "remote",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-202012-1278"
}
],
"trust": 0.6
},
"title": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/title#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "F5 BIG-IP LTM/CGNAT Security hole",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-202012-1278"
}
],
"trust": 0.6
},
"type": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/type#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "other",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-202012-1278"
}
],
"trust": 0.6
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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…
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.
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.
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…