var-202104-1037
Vulnerability from variot
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR Nighthawk R7800. Authentication is not required to exploit this vulnerability The specific flaw exists within handling of firmware updates. The issue results from a fallback to a insecure protocol to deliver updates. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-12308. Zero Day Initiative To this vulnerability ZDI-CAN-12308 Was numbered.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state
Show details on source website{
"affected_products": {
"_id": null,
"data": [
{
"_id": null,
"model": "rbk53",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.7.2.104"
},
{
"_id": null,
"model": "r9000",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.5.28"
},
{
"_id": null,
"model": "ex6250",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.0.134"
},
{
"_id": null,
"model": "r7800",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.2.80"
},
{
"_id": null,
"model": "rbr20",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.6.2.104"
},
{
"_id": null,
"model": "r8900",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.5.28"
},
{
"_id": null,
"model": "rbk20",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.6.2.104"
},
{
"_id": null,
"model": "rbk40",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.6.2.104"
},
{
"_id": null,
"model": "ex6400",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.2.158"
},
{
"_id": null,
"model": "rbs50",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.7.2.104"
},
{
"_id": null,
"model": "rbs10",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.6.2.104"
},
{
"_id": null,
"model": "rbk12",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.7.2.104"
},
{
"_id": null,
"model": "rbs40",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.6.2.104"
},
{
"_id": null,
"model": "d7800",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.1.60"
},
{
"_id": null,
"model": "ex6420",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.0.134"
},
{
"_id": null,
"model": "ex7300",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.2.158"
},
{
"_id": null,
"model": "ex6400v2",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.0.134"
},
{
"_id": null,
"model": "ex7320",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.0.134"
},
{
"_id": null,
"model": "rbr50",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.7.2.104"
},
{
"_id": null,
"model": "rbk13",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.7.2.104"
},
{
"_id": null,
"model": "rbk23",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.7.2.104"
},
{
"_id": null,
"model": "br200",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "5.10.0.5"
},
{
"_id": null,
"model": "rbk44",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.6.2.104"
},
{
"_id": null,
"model": "xr500",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.3.2.114"
},
{
"_id": null,
"model": "lbr20",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.6.3.50"
},
{
"_id": null,
"model": "rbs20",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.6.2.104"
},
{
"_id": null,
"model": "ex6410",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.0.134"
},
{
"_id": null,
"model": "rbs50y",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.6.2.104"
},
{
"_id": null,
"model": "rbk50",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.7.2.104"
},
{
"_id": null,
"model": "xr450",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.3.2.114"
},
{
"_id": null,
"model": "br500",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "5.10.0.5"
},
{
"_id": null,
"model": "rbk14",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.7.2.104"
},
{
"_id": null,
"model": "ex6150",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.1.98"
},
{
"_id": null,
"model": "ex7300v2",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.0.134"
},
{
"_id": null,
"model": "xr700",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.1.38"
},
{
"_id": null,
"model": "rbr40",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.6.2.104"
},
{
"_id": null,
"model": "ex6100v2",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.1.98"
},
{
"_id": null,
"model": "rbk43",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.6.2.104"
},
{
"_id": null,
"model": "ex7700",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.0.216"
},
{
"_id": null,
"model": "rbr10",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.6.2.104"
},
{
"_id": null,
"model": "rbk43s",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.6.2.104"
},
{
"_id": null,
"model": "ex8000",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "1.0.1.232"
},
{
"_id": null,
"model": "rbk15",
"scope": "lt",
"trust": 1.0,
"vendor": "netgear",
"version": "2.7.2.104"
},
{
"_id": null,
"model": "br500",
"scope": null,
"trust": 0.8,
"vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
"version": null
},
{
"_id": null,
"model": "r7800",
"scope": null,
"trust": 0.8,
"vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
"version": null
},
{
"_id": null,
"model": "ex6410",
"scope": null,
"trust": 0.8,
"vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
"version": null
},
{
"_id": null,
"model": "ex6150",
"scope": null,
"trust": 0.8,
"vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
"version": null
},
{
"_id": null,
"model": "d7800",
"scope": null,
"trust": 0.8,
"vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
"version": null
},
{
"_id": null,
"model": "ex6100v2",
"scope": null,
"trust": 0.8,
"vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
"version": null
},
{
"_id": null,
"model": "ex6400",
"scope": null,
"trust": 0.8,
"vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
"version": null
},
{
"_id": null,
"model": "ex6250",
"scope": null,
"trust": 0.8,
"vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
"version": null
},
{
"_id": null,
"model": "br200",
"scope": null,
"trust": 0.8,
"vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
"version": null
},
{
"_id": null,
"model": "ex6400v2",
"scope": null,
"trust": 0.8,
"vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2",
"version": null
},
{
"_id": null,
"model": "r7800",
"scope": null,
"trust": 0.7,
"vendor": "netgear",
"version": null
}
],
"sources": [
{
"db": "ZDI",
"id": "ZDI-21-247"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-006381"
},
{
"db": "NVD",
"id": "CVE-2021-27251"
}
]
},
"credits": {
"_id": null,
"data": "Team FLASHBACK: Pedro Ribeiro (@pedrib1337 | pedrib@gmail.com) + Radek Domanski (@RabbitPro)",
"sources": [
{
"db": "ZDI",
"id": "ZDI-21-247"
}
],
"trust": 0.7
},
"cve": "CVE-2021-27251",
"cvss": {
"_id": null,
"data": [
{
"cvssV2": [
{
"accessComplexity": "LOW",
"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
"author": "nvd@nist.gov",
"availabilityImpact": "COMPLETE",
"baseScore": 8.3,
"confidentialityImpact": "COMPLETE",
"exploitabilityScore": 6.5,
"id": "CVE-2021-27251",
"impactScore": 10.0,
"integrityImpact": "COMPLETE",
"severity": "HIGH",
"trust": 1.8,
"vectorString": "AV:A/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
}
],
"cvssV3": [
{
"attackComplexity": "LOW",
"attackVector": "ADJACENT",
"author": "zdi-disclosures@trendmicro.com",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"exploitabilityScore": 2.8,
"id": "CVE-2021-27251",
"impactScore": 5.9,
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"trust": 1.8,
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
{
"attackComplexity": "LOW",
"attackVector": "ADJACENT",
"author": "nvd@nist.gov",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"exploitabilityScore": 2.8,
"id": "CVE-2021-27251",
"impactScore": 5.9,
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"trust": 1.0,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
{
"attackComplexity": "LOW",
"attackVector": "ADJACENT",
"author": "ZDI",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"exploitabilityScore": 2.8,
"id": "CVE-2021-27251",
"impactScore": 5.9,
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"trust": 0.7,
"userInteraction": "NONE",
"vectorString": "AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
}
],
"severity": [
{
"author": "nvd@nist.gov",
"id": "CVE-2021-27251",
"trust": 1.0,
"value": "HIGH"
},
{
"author": "zdi-disclosures@trendmicro.com",
"id": "CVE-2021-27251",
"trust": 1.0,
"value": "HIGH"
},
{
"author": "NVD",
"id": "CVE-2021-27251",
"trust": 0.8,
"value": "High"
},
{
"author": "ZDI",
"id": "CVE-2021-27251",
"trust": 0.7,
"value": "HIGH"
},
{
"author": "CNNVD",
"id": "CNNVD-202104-1136",
"trust": 0.6,
"value": "HIGH"
}
]
}
],
"sources": [
{
"db": "ZDI",
"id": "ZDI-21-247"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-006381"
},
{
"db": "CNNVD",
"id": "CNNVD-202104-1136"
},
{
"db": "NVD",
"id": "CVE-2021-27251"
},
{
"db": "NVD",
"id": "CVE-2021-27251"
}
]
},
"description": {
"_id": null,
"data": "This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR Nighthawk R7800. Authentication is not required to exploit this vulnerability The specific flaw exists within handling of firmware updates. The issue results from a fallback to a insecure protocol to deliver updates. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-12308. Zero Day Initiative To this vulnerability ZDI-CAN-12308 Was numbered.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state",
"sources": [
{
"db": "NVD",
"id": "CVE-2021-27251"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-006381"
},
{
"db": "ZDI",
"id": "ZDI-21-247"
},
{
"db": "VULMON",
"id": "CVE-2021-27251"
}
],
"trust": 2.34
},
"external_ids": {
"_id": null,
"data": [
{
"db": "NVD",
"id": "CVE-2021-27251",
"trust": 4.0
},
{
"db": "ZDI",
"id": "ZDI-21-247",
"trust": 3.2
},
{
"db": "JVNDB",
"id": "JVNDB-2021-006381",
"trust": 0.8
},
{
"db": "ZDI_CAN",
"id": "ZDI-CAN-12308",
"trust": 0.7
},
{
"db": "CNNVD",
"id": "CNNVD-202104-1136",
"trust": 0.6
},
{
"db": "VULMON",
"id": "CVE-2021-27251",
"trust": 0.1
}
],
"sources": [
{
"db": "ZDI",
"id": "ZDI-21-247"
},
{
"db": "VULMON",
"id": "CVE-2021-27251"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-006381"
},
{
"db": "CNNVD",
"id": "CNNVD-202104-1136"
},
{
"db": "NVD",
"id": "CVE-2021-27251"
}
]
},
"id": "VAR-202104-1037",
"iot": {
"_id": null,
"data": true,
"sources": [
{
"db": "VARIoT devices database",
"id": null
}
],
"trust": 0.25201656722222227
},
"last_update_date": "2024-11-23T22:54:48.346000Z",
"patch": {
"_id": null,
"data": [
{
"title": "Security\u00a0Advisory\u00a0for\u00a0Multiple\u00a0Vulnerabilities\u00a0on\u00a0Some\u00a0Routers,\u00a0Satellites,\u00a0and\u00a0Extenders",
"trust": 1.5,
"url": "https://kb.netgear.com/000062883/Security-Advisory-for-Multiple-Vulnerabilities-on-Some-Routers-Satellites-and-Extenders"
},
{
"title": "Netgear NETGEAR Security vulnerabilities",
"trust": 0.6,
"url": "http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=147498"
}
],
"sources": [
{
"db": "ZDI",
"id": "ZDI-21-247"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-006381"
},
{
"db": "CNNVD",
"id": "CNNVD-202104-1136"
}
]
},
"problemtype_data": {
"_id": null,
"data": [
{
"problemtype": "CWE-319",
"trust": 1.0
},
{
"problemtype": "Sending important information in clear text (CWE-319) [ Other ]",
"trust": 0.8
}
],
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2021-006381"
},
{
"db": "NVD",
"id": "CVE-2021-27251"
}
]
},
"references": {
"_id": null,
"data": [
{
"trust": 2.6,
"url": "https://www.zerodayinitiative.com/advisories/zdi-21-247/"
},
{
"trust": 2.4,
"url": "https://kb.netgear.com/000062883/security-advisory-for-multiple-vulnerabilities-on-some-routers-satellites-and-extenders"
},
{
"trust": 1.4,
"url": "https://nvd.nist.gov/vuln/detail/cve-2021-27251"
},
{
"trust": 0.1,
"url": "https://cwe.mitre.org/data/definitions/319.html"
},
{
"trust": 0.1,
"url": "https://nvd.nist.gov"
}
],
"sources": [
{
"db": "ZDI",
"id": "ZDI-21-247"
},
{
"db": "VULMON",
"id": "CVE-2021-27251"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-006381"
},
{
"db": "CNNVD",
"id": "CNNVD-202104-1136"
},
{
"db": "NVD",
"id": "CVE-2021-27251"
}
]
},
"sources": {
"_id": null,
"data": [
{
"db": "ZDI",
"id": "ZDI-21-247",
"ident": null
},
{
"db": "VULMON",
"id": "CVE-2021-27251",
"ident": null
},
{
"db": "JVNDB",
"id": "JVNDB-2021-006381",
"ident": null
},
{
"db": "CNNVD",
"id": "CNNVD-202104-1136",
"ident": null
},
{
"db": "NVD",
"id": "CVE-2021-27251",
"ident": null
}
]
},
"sources_release_date": {
"_id": null,
"data": [
{
"date": "2021-02-24T00:00:00",
"db": "ZDI",
"id": "ZDI-21-247",
"ident": null
},
{
"date": "2021-04-14T00:00:00",
"db": "VULMON",
"id": "CVE-2021-27251",
"ident": null
},
{
"date": "2022-01-06T00:00:00",
"db": "JVNDB",
"id": "JVNDB-2021-006381",
"ident": null
},
{
"date": "2021-04-14T00:00:00",
"db": "CNNVD",
"id": "CNNVD-202104-1136",
"ident": null
},
{
"date": "2021-04-14T16:15:13.657000",
"db": "NVD",
"id": "CVE-2021-27251",
"ident": null
}
]
},
"sources_update_date": {
"_id": null,
"data": [
{
"date": "2021-02-24T00:00:00",
"db": "ZDI",
"id": "ZDI-21-247",
"ident": null
},
{
"date": "2021-04-27T00:00:00",
"db": "VULMON",
"id": "CVE-2021-27251",
"ident": null
},
{
"date": "2022-01-06T05:00:00",
"db": "JVNDB",
"id": "JVNDB-2021-006381",
"ident": null
},
{
"date": "2021-04-28T00:00:00",
"db": "CNNVD",
"id": "CNNVD-202104-1136",
"ident": null
},
{
"date": "2024-11-21T05:57:41.280000",
"db": "NVD",
"id": "CVE-2021-27251",
"ident": null
}
]
},
"threat_type": {
"_id": null,
"data": "remote or local",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-202104-1136"
}
],
"trust": 0.6
},
"title": {
"_id": null,
"data": "NETGEAR\u00a0Nighthawk\u00a0R7800\u00a0 Vulnerability in plaintext transmission of important information in",
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2021-006381"
}
],
"trust": 0.8
},
"type": {
"_id": null,
"data": "other",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-202104-1136"
}
],
"trust": 0.6
}
}
Loading…
Loading…
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.