CVE-2021-26387
Vulnerability from cvelistv5
Published
2024-08-13 16:50
Modified
2024-10-30 17:59
Severity ?
EPSS score ?
Summary
Insufficient access controls in ASP kernel may allow a
privileged attacker with access to AMD signing keys and the BIOS menu or UEFI
shell to map DRAM regions in protected areas, potentially leading to a loss of platform integrity.
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-26387",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-08-14T15:47:34.441746Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-863",
"description": "CWE-863 Incorrect Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-10-30T17:59:30.394Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "affected",
"packageName": "PI",
"product": "AMD EPYC\u2122 7001 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various",
"versionType": "PI"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 7002 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 7003 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 9004 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 3000 Series Desktop Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4PI 1.0.0.9"
},
{
"status": "unaffected",
"version": "ComboAM4 V2 PI 1.2.0.8"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Desktop Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4 V2 PI 1.2.0.8"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Desktop Processor with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4v2 PI 1.2.0.6"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 7000 Series Desktop Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM5 1.0.8.0"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Athlon\u2122 3000 Series Desktop Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4PI 1.0.0.9"
},
{
"status": "unaffected",
"version": "ComboAM4v2 PI 1.2.0.8"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 4000 Series Desktop Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4v2 PI 1.2.0.5"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Threadripper\u2122 3000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "CastlePeakPI-SP3r3 1.0.0.7"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 3000WX Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ChagallWSPI-sWRX8 1.0.0.2"
},
{
"status": "unaffected",
"version": "CastlePeakWSPI-sWRX8 1.0.0.9"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 5000WX Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ChagallWSPI-sWRX8 1.0.0.2"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Athlon\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "PicassoPI-FP5 1.0.0.E"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Athlon\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "PollockPI-FT5 1.0.0.4"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 3000 Series Mobile Processor with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "PicassoPI-FP5 1.0.0.E"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 4000 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "RenoirPI-FP6 1.0.0.8"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6 1.0.0.9"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6 1.0.0.9"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 6000 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "RembrandtPI-FP7 1.0.0.9b"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 7035 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "RembrandtPI-FP7 1.0.0.9b"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6 1.0.0.9"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 3000 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6 1.0.0.9"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 Embedded 3000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 Embedded 7002 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 Embedded 7003 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 Embedded 9003 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded R1000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP5 1.2.0.A"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded R2000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedR2KPI-FP5 1.0.0.2"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded 5000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbAM4PI 1.0.0.2"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded V1000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP5 1.2.0.A"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded V2000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP6 1.0.0.6"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded V3000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP7r2 1.0.0.9"
}
]
}
],
"datePublic": "2024-08-13T16:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eInsufficient access controls in ASP kernel may allow a\nprivileged attacker with access to AMD signing keys and the BIOS menu or UEFI\nshell to map DRAM regions in protected \u003ca target=\"_blank\" rel=\"nofollow\"\u003eareas,\u003c/a\u003e\u0026nbsp;potentially leading to a loss of platform integrity.\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\n\n\u003c/div\u003e\n\n\u003c/div\u003e\n\n\u003c/div\u003e\n\n\n\n\n\n\u003c/span\u003e"
}
],
"value": "Insufficient access controls in ASP kernel may allow a\nprivileged attacker with access to AMD signing keys and the BIOS menu or UEFI\nshell to map DRAM regions in protected areas,\u00a0potentially leading to a loss of platform integrity."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 3.9,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-08-13T16:50:22.151Z",
"orgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
"shortName": "AMD"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html"
},
{
"url": "https://www.amd.com/en/resources/product-security/bulletin/amd-sb-5002.html"
}
],
"source": {
"advisory": "AMD-SB-4002, AMD-SB-3002, AMD-SB-5001",
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
"assignerShortName": "AMD",
"cveId": "CVE-2021-26387",
"datePublished": "2024-08-13T16:50:22.151Z",
"dateReserved": "2021-01-29T21:24:26.161Z",
"dateUpdated": "2024-10-30T17:59:30.394Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2021-26387\",\"sourceIdentifier\":\"psirt@amd.com\",\"published\":\"2024-08-13T17:15:17.563\",\"lastModified\":\"2024-10-30T18:35:00.703\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Insufficient access controls in ASP kernel may allow a\\nprivileged attacker with access to AMD signing keys and the BIOS menu or UEFI\\nshell to map DRAM regions in protected areas,\u00a0potentially leading to a loss of platform integrity.\"},{\"lang\":\"es\",\"value\":\"Los controles de acceso insuficientes en el kernel ASP pueden permitir que un atacante privilegiado con acceso a las claves de firma de AMD y al men\u00fa BIOS o al shell UEFI asigne regiones DRAM en \u00e1reas protegidas, lo que podr\u00eda provocar una p\u00e9rdida de integridad de la plataforma.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@amd.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\",\"baseScore\":3.9,\"baseSeverity\":\"LOW\"},\"exploitabilityScore\":0.8,\"impactScore\":2.7}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-863\"}]}],\"references\":[{\"url\":\"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html\",\"source\":\"psirt@amd.com\"},{\"url\":\"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-5002.html\",\"source\":\"psirt@amd.com\"}]}}"
}
}
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.