CVE-2021-42759 (GCVE-0-2021-42759)
Vulnerability from cvelistv5 – Published: 2021-12-09 09:22 – Updated: 2024-10-25 13:37
VLAI
Summary
A violation of secure design principles in Fortinet Meru AP version 8.6.1 and below, version 8.5.5 and below allows attacker to execute unauthorized code or commands via crafted cli commands.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- Execute unauthorized code or commands
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://fortiguard.com/advisory/FG-IR-21-004 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Fortinet | Fortinet Meru AP |
Affected:
Meru AP 8.6.1, 8.6.0, 8.5.5, 8.5.4, 8.5.3, 8.5.2, 8.5.1, 8.5.0
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T03:38:50.208Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://fortiguard.com/advisory/FG-IR-21-004"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-42759",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-10-23T14:13:00.424308Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-10-25T13:37:11.103Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Fortinet Meru AP",
"vendor": "Fortinet",
"versions": [
{
"status": "affected",
"version": "Meru AP 8.6.1, 8.6.0, 8.5.5, 8.5.4, 8.5.3, 8.5.2, 8.5.1, 8.5.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A violation of secure design principles in Fortinet Meru AP version 8.6.1 and below, version 8.5.5 and below allows attacker to execute unauthorized code or commands via crafted cli commands."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"exploitCodeMaturity": "PROOF_OF_CONCEPT",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"remediationLevel": "NOT_DEFINED",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
"temporalScore": 6.3,
"temporalSeverity": "MEDIUM",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Execute unauthorized code or commands",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-12-09T09:22:21.000Z",
"orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
"shortName": "fortinet"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://fortiguard.com/advisory/FG-IR-21-004"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "psirt@fortinet.com",
"ID": "CVE-2021-42759",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Fortinet Meru AP",
"version": {
"version_data": [
{
"version_value": "Meru AP 8.6.1, 8.6.0, 8.5.5, 8.5.4, 8.5.3, 8.5.2, 8.5.1, 8.5.0"
}
]
}
}
]
},
"vendor_name": "Fortinet"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "A violation of secure design principles in Fortinet Meru AP version 8.6.1 and below, version 8.5.5 and below allows attacker to execute unauthorized code or commands via crafted cli commands."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "Low",
"attackVector": "Local",
"availabilityImpact": "High",
"baseScore": 6.3,
"baseSeverity": "Medium",
"confidentialityImpact": "High",
"integrityImpact": "High",
"privilegesRequired": "High",
"scope": "Unchanged",
"userInteraction": "None",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Execute unauthorized code or commands"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://fortiguard.com/advisory/FG-IR-21-004",
"refsource": "CONFIRM",
"url": "https://fortiguard.com/advisory/FG-IR-21-004"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
"assignerShortName": "fortinet",
"cveId": "CVE-2021-42759",
"datePublished": "2021-12-09T09:22:21.000Z",
"dateReserved": "2021-10-20T00:00:00.000Z",
"dateUpdated": "2024-10-25T13:37:11.103Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-42759",
"date": "2026-06-30",
"epss": "0.00264",
"percentile": "0.17684"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2021-42759\",\"sourceIdentifier\":\"psirt@fortinet.com\",\"published\":\"2021-12-09T10:15:11.787\",\"lastModified\":\"2026-06-17T04:10:05.543\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A violation of secure design principles in Fortinet Meru AP version 8.6.1 and below, version 8.5.5 and below allows attacker to execute unauthorized code or commands via crafted cli commands.\"},{\"lang\":\"es\",\"value\":\"Una violaci\u00f3n de los principios de dise\u00f1o seguro en Fortinet Meru AP versi\u00f3n 8.6.1 y anteriores, versi\u00f3n 8.5.5 y anteriores, permite al atacante ejecutar c\u00f3digo o comandos no autorizados por medio de comandos cli dise\u00f1ados\"}],\"affected\":[{\"source\":\"psirt@fortinet.com\",\"affectedData\":[{\"vendor\":\"Fortinet\",\"product\":\"Fortinet Meru AP\",\"versions\":[{\"version\":\"Meru AP 8.6.1, 8.6.0, 8.5.5, 8.5.4, 8.5.3, 8.5.2, 8.5.1, 8.5.0\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@fortinet.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":6.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":0.8,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":6.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":0.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:C/I:C/A:C\",\"baseScore\":7.2,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":3.9,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-10-23T14:13:00.424308Z\",\"id\":\"CVE-2021-42759\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-78\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fortinet:meru_firmware:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"8.5.0\",\"versionEndIncluding\":\"8.5.5\",\"matchCriteriaId\":\"97C8A225-4B00-4AB1-AE9D-92835C3AB826\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fortinet:meru_firmware:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"8.6.0\",\"versionEndExcluding\":\"8.6.2\",\"matchCriteriaId\":\"D85AB4CD-308E-4495-A137-178883D08316\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:fortinet:meru:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"58239031-FE5A-4408-BC23-FB9ABEEFE127\"}]}]}],\"references\":[{\"url\":\"https://fortiguard.com/advisory/FG-IR-21-004\",\"source\":\"psirt@fortinet.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://fortiguard.com/advisory/FG-IR-21-004\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://fortiguard.com/advisory/FG-IR-21-004\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T03:38:50.208Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-42759\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-23T14:13:00.424308Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-23T14:16:44.143Z\"}}], \"cna\": {\"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.7, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C\", \"temporalScore\": 6.3, \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"remediationLevel\": \"NOT_DEFINED\", \"reportConfidence\": \"CONFIRMED\", \"temporalSeverity\": \"MEDIUM\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"exploitCodeMaturity\": \"PROOF_OF_CONCEPT\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"Fortinet\", \"product\": \"Fortinet Meru AP\", \"versions\": [{\"status\": \"affected\", \"version\": \"Meru AP 8.6.1, 8.6.0, 8.5.5, 8.5.4, 8.5.3, 8.5.2, 8.5.1, 8.5.0\"}]}], \"references\": [{\"url\": \"https://fortiguard.com/advisory/FG-IR-21-004\", \"tags\": [\"x_refsource_CONFIRM\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A violation of secure design principles in Fortinet Meru AP version 8.6.1 and below, version 8.5.5 and below allows attacker to execute unauthorized code or commands via crafted cli commands.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"Execute unauthorized code or commands\"}]}], \"providerMetadata\": {\"orgId\": \"6abe59d8-c742-4dff-8ce8-9b0ca1073da8\", \"shortName\": \"fortinet\", \"dateUpdated\": \"2021-12-09T09:22:21.000Z\"}, \"x_legacyV4Record\": {\"impact\": {\"cvss\": {\"scope\": \"Unchanged\", \"version\": \"3.1\", \"baseScore\": 6.3, \"attackVector\": \"Local\", \"baseSeverity\": \"Medium\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C\", \"integrityImpact\": \"High\", \"userInteraction\": \"None\", \"attackComplexity\": \"Low\", \"availabilityImpact\": \"High\", \"privilegesRequired\": \"High\", \"confidentialityImpact\": \"High\"}}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"version_value\": \"Meru AP 8.6.1, 8.6.0, 8.5.5, 8.5.4, 8.5.3, 8.5.2, 8.5.1, 8.5.0\"}]}, \"product_name\": \"Fortinet Meru AP\"}]}, \"vendor_name\": \"Fortinet\"}]}}, \"data_type\": \"CVE\", \"references\": {\"reference_data\": [{\"url\": \"https://fortiguard.com/advisory/FG-IR-21-004\", \"name\": \"https://fortiguard.com/advisory/FG-IR-21-004\", \"refsource\": \"CONFIRM\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"A violation of secure design principles in Fortinet Meru AP version 8.6.1 and below, version 8.5.5 and below allows attacker to execute unauthorized code or commands via crafted cli commands.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"Execute unauthorized code or commands\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2021-42759\", \"STATE\": \"PUBLIC\", \"ASSIGNER\": \"psirt@fortinet.com\"}}}}",
"cveMetadata": "{\"cveId\": \"CVE-2021-42759\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-10-25T13:37:11.103Z\", \"dateReserved\": \"2021-10-20T00:00:00.000Z\", \"assignerOrgId\": \"6abe59d8-c742-4dff-8ce8-9b0ca1073da8\", \"datePublished\": \"2021-12-09T09:22:21.000Z\", \"assignerShortName\": \"fortinet\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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…
Loading…