218 lines
8.9 KiB
JSON
218 lines
8.9 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2021-4464",
|
|
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "VulnCheck",
|
|
"dateReserved": "2025-11-12T21:24:45.845Z",
|
|
"datePublished": "2025-11-12T22:09:20.835Z",
|
|
"dateUpdated": "2025-11-21T15:36:02.534Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"affected": [
|
|
{
|
|
"defaultStatus": "unaffected",
|
|
"product": "AN5506-04-FA",
|
|
"vendor": "FiberHome",
|
|
"versions": [
|
|
{
|
|
"lessThanOrEqual": "RP2631",
|
|
"status": "affected",
|
|
"version": "0",
|
|
"versionType": "custom"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"defaultStatus": "unaffected",
|
|
"product": "HG6245D",
|
|
"vendor": "FiberHome",
|
|
"versions": [
|
|
{
|
|
"lessThan": "RP2602",
|
|
"status": "affected",
|
|
"version": "0",
|
|
"versionType": "custom"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"cpeMatch": [
|
|
{
|
|
"criteria": "cpe:2.3:o:fiberhome:an5506-04-fa_firmware:*:*:*:*:*:*:*:*",
|
|
"versionEndIncluding": "rp2631",
|
|
"versionStartIncluding": "0",
|
|
"vulnerable": true
|
|
}
|
|
],
|
|
"negate": false,
|
|
"operator": "OR"
|
|
},
|
|
{
|
|
"cpeMatch": [
|
|
{
|
|
"criteria": "cpe:2.3:o:fiberhome:hg6245d_firmware:*:*:*:*:*:*:*:*",
|
|
"versionEndExcluding": "rp2602",
|
|
"versionStartIncluding": "0",
|
|
"vulnerable": true
|
|
}
|
|
],
|
|
"negate": false,
|
|
"operator": "OR"
|
|
}
|
|
],
|
|
"operator": "OR"
|
|
}
|
|
],
|
|
"credits": [
|
|
{
|
|
"lang": "en",
|
|
"type": "finder",
|
|
"value": "Pierre Barre"
|
|
}
|
|
],
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"supportingMedia": [
|
|
{
|
|
"base64": false,
|
|
"type": "text/html",
|
|
"value": "FiberHome AN5506-04-FA firmware versions up to and including RP2631 and HG6245D prior to RP2602 contain a stack-based buffer overflow, as the HTTP service ('webs') fails to enforce maximum lengths for Cookie header values. When a cookie longer than 511 bytes is processed, a stack buffer is overrun, leading to a crash or potential control of execution flow. <br>"
|
|
}
|
|
],
|
|
"value": "FiberHome AN5506-04-FA firmware versions up to and including RP2631 and HG6245D prior to RP2602 contain a stack-based buffer overflow, as the HTTP service ('webs') fails to enforce maximum lengths for Cookie header values. When a cookie longer than 511 bytes is processed, a stack buffer is overrun, leading to a crash or potential control of execution flow."
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV4_0": {
|
|
"Automatable": "NOT_DEFINED",
|
|
"Recovery": "NOT_DEFINED",
|
|
"Safety": "NOT_DEFINED",
|
|
"attackComplexity": "LOW",
|
|
"attackRequirements": "NONE",
|
|
"attackVector": "NETWORK",
|
|
"baseScore": 9.3,
|
|
"baseSeverity": "CRITICAL",
|
|
"exploitMaturity": "NOT_DEFINED",
|
|
"privilegesRequired": "NONE",
|
|
"providerUrgency": "NOT_DEFINED",
|
|
"subAvailabilityImpact": "NONE",
|
|
"subConfidentialityImpact": "NONE",
|
|
"subIntegrityImpact": "NONE",
|
|
"userInteraction": "NONE",
|
|
"valueDensity": "NOT_DEFINED",
|
|
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
|
|
"version": "4.0",
|
|
"vulnAvailabilityImpact": "HIGH",
|
|
"vulnConfidentialityImpact": "HIGH",
|
|
"vulnIntegrityImpact": "HIGH",
|
|
"vulnerabilityResponseEffort": "NOT_DEFINED"
|
|
},
|
|
"format": "CVSS",
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "GENERAL"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"cweId": "CWE-121",
|
|
"description": "CWE-121 Stack-based Buffer Overflow",
|
|
"lang": "en",
|
|
"type": "CWE"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"providerMetadata": {
|
|
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
|
|
"shortName": "VulnCheck",
|
|
"dateUpdated": "2025-11-21T15:36:02.534Z"
|
|
},
|
|
"references": [
|
|
{
|
|
"tags": [
|
|
"technical-description",
|
|
"exploit"
|
|
],
|
|
"url": "https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#misc-remote-stack-overflow-an5506"
|
|
},
|
|
{
|
|
"tags": [
|
|
"technical-description",
|
|
"exploit"
|
|
],
|
|
"url": "https://pierrekim.github.io/advisories/2021-fiberhome-0x00-ont.txt"
|
|
},
|
|
{
|
|
"tags": [
|
|
"third-party-advisory"
|
|
],
|
|
"url": "https://www.vulncheck.com/advisories/fiberhome-routers-remote-stack-overflow"
|
|
}
|
|
],
|
|
"source": {
|
|
"discovery": "UNKNOWN"
|
|
},
|
|
"timeline": [
|
|
{
|
|
"lang": "en",
|
|
"time": "2021-01-12T17:00:00.000Z",
|
|
"value": "Pierre Kim publicly discloses vulnerability."
|
|
}
|
|
],
|
|
"title": "FIberHome AN5506-04-FA / HG6245D Routers Remote Stack Overflow",
|
|
"x_generator": {
|
|
"engine": "vulncheck"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2025-11-13T14:30:31.859197Z",
|
|
"id": "CVE-2021-4464",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "yes"
|
|
},
|
|
{
|
|
"Technical Impact": "total"
|
|
}
|
|
],
|
|
"role": "CISA Coordinator",
|
|
"version": "2.0.3"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2025-11-13T14:35:47.050Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |