CVE-2021-23892 (GCVE-0-2021-23892)
Vulnerability from cvelistv5
Published
2021-05-12 09:05
Modified
2024-08-03 19:14
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Summary
By exploiting a time of check to time of use (TOCTOU) race condition during the Endpoint Security for Linux Threat Prevention and Firewall (ENSL TP/FW) installation process, a local user can perform a privilege escalation attack to obtain administrator privileges for the purpose of executing arbitrary code through insecure use of predictable temporary file locations.
References
Impacted products
Vendor | Product | Version | ||
---|---|---|---|---|
McAfee,LLC | McAfee Endpoint Security (ENS) for Linux |
Version: unspecified < 10.7.5 |
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-03T19:14:09.649Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10355" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "defaultStatus": "unaffected", "platforms": [ "Linux" ], "product": "McAfee Endpoint Security (ENS) for Linux", "vendor": "McAfee,LLC", "versions": [ { "lessThan": "10.7.5", "status": "affected", "version": "unspecified", "versionType": "custom" } ] } ], "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "\u003cp\u003eBy exploiting a time of check to time of use (TOCTOU) race condition during the Endpoint Security for Linux Threat Prevention and Firewall (ENSL TP/FW) installation process, a local user can perform a privilege escalation attack to obtain administrator privileges for the purpose of executing arbitrary code through insecure use of predictable temporary file locations.\u003c/p\u003e" } ], "value": "By exploiting a time of check to time of use (TOCTOU) race condition during the Endpoint Security for Linux Threat Prevention and Firewall (ENSL TP/FW) installation process, a local user can perform a privilege escalation attack to obtain administrator privileges for the purpose of executing arbitrary code through insecure use of predictable temporary file locations.\n\n" } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-59", "description": "CWE-59: Improper Link Resolution Before File Access (\u0027Link Following\u0027)", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2022-12-20T08:42:26.717Z", "orgId": "01626437-bf8f-4d1c-912a-893b5eb04808", "shortName": "trellix" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10355" } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "Vulnogram 0.0.9" }, "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "psirt@mcafee.com", "ID": "CVE-2021-23892", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "McAfee Endpoint Security (ENS) for Linux", "version": { "version_data": [ { "platform": "Linux", "version_affected": "\u003c", "version_value": "10.7.5" } ] } } ] }, "vendor_name": "McAfee,LLC" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "By exploiting a time of check to time of use (TOCTOU) race condition during the Endpoint Security for Linux Threat Prevention and Firewall (ENSL TP/FW) installation process, a local user can perform a privilege escalation attack to obtain administrator privileges for the purpose of executing arbitrary code through insecure use of predictable temporary file locations." } ] }, "generator": { "engine": "Vulnogram 0.0.9" }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-362: Time-of-check Time-of-use (TOCTOU) Race Condition" } ] } ] }, "references": { "reference_data": [ { "name": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10355", "refsource": "CONFIRM", "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10355" } ] }, "source": { "discovery": "UNKNOWN" } } } }, "cveMetadata": { "assignerOrgId": "01626437-bf8f-4d1c-912a-893b5eb04808", "assignerShortName": "trellix", "cveId": "CVE-2021-23892", "datePublished": "2021-05-12T09:05:13", "dateReserved": "2021-01-12T00:00:00", "dateUpdated": "2024-08-03T19:14:09.649Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "vulnerability-lookup:meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-23892\",\"sourceIdentifier\":\"trellixpsirt@trellix.com\",\"published\":\"2021-05-12T09:15:07.470\",\"lastModified\":\"2024-11-21T05:52:00.990\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"By exploiting a time of check to time of use (TOCTOU) race condition during the Endpoint Security for Linux Threat Prevention and Firewall (ENSL TP/FW) installation process, a local user can perform a privilege escalation attack to obtain administrator privileges for the purpose of executing arbitrary code through insecure use of predictable temporary file locations.\\n\\n\"},{\"lang\":\"es\",\"value\":\"Al explotar una condici\u00f3n de carrera de tiempo de verificaci\u00f3n a tiempo de uso (TOCTOU) durante el proceso de instalaci\u00f3n de Endpoint Security for Linux Threat Prevention and Firewall (ENSL TP/FW), un usuario local puede llevar a cabo un ataque de escalada de privilegios para alcanzar privilegios de administrador para el prop\u00f3sito de ejecutar c\u00f3digo arbitrario a trav\u00e9s del uso no seguro de ubicaciones predecibles de archivos temporales\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"trellixpsirt@trellix.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H\",\"baseScore\":8.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.5,\"impactScore\":6.0},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:M/Au:N/C:C/I:C/A:C\",\"baseScore\":6.9,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.4,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"trellixpsirt@trellix.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-59\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-367\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:mcafee:endpoint_security_for_linux_threat_prevention:*:*:*:*:*:linux:*:*\",\"versionStartIncluding\":\"10.5.0\",\"versionEndExcluding\":\"10.7.5\",\"matchCriteriaId\":\"98894A60-D42C-43FE-A471-8BBB4EFEBF0B\"}]}]}],\"references\":[{\"url\":\"https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10355\",\"source\":\"trellixpsirt@trellix.com\"},{\"url\":\"https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10355\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}" } }
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.
Loading…
Loading…