OpenCVE

Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a Time-of-check Time-of-use (TOCTOU) race condition vulnerability. A remote authenticated attacker could potentially exploit this vulnerability to gain elevated privileges when a user with higher privileges is simultaneously accessing iDRAC through the web interface.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact High

Availability Impact Low

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity High

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

AV:N/AC:H/Au:S/C:P/I:P/A:P

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Dell	Idrac9 Firmware

Configuration 1 [-]

cpe:2.3:o:dell:idrac9_firmware:*:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://www.dell.com/support/kbdoc/000185293

History

No history.

MITRE

Status: PUBLISHED

Assigner: dell

Published: 2021-04-30T20:55:18.417395Z

Updated: 2024-09-16T16:58:47.474Z

Reserved: 2021-01-04T00:00:00

Link: CVE-2021-21539

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-04-30T21:15:08.707

Modified: 2024-11-21T05:48:33.110

Link: CVE-2021-21539

Redhat

No data.

{"containers": {"cna": {"affected": [{"product": "Integrated Dell Remote Access Controller (iDRAC)", "vendor": "Dell", "versions": [{"lessThan": "4.40.00.00", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "datePublic": "2021-04-14T00:00:00", "descriptions": [{"lang": "en", "value": "Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a Time-of-check Time-of-use (TOCTOU) race condition vulnerability. A remote authenticated attacker could potentially exploit this vulnerability to gain elevated privileges when a user with higher privileges is simultaneously accessing iDRAC through the web interface."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:H/A:L", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"description": "Other", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-04-30T20:55:18", "orgId": "c550e75a-17ff-4988-97f0-544cde3820fe", "shortName": "dell"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://www.dell.com/support/kbdoc/000185293"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "secure@dell.com", "DATE_PUBLIC": "2021-04-14", "ID": "CVE-2021-21539", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Integrated Dell Remote Access Controller (iDRAC)", "version": {"version_data": [{"version_affected": "<", "version_value": "4.40.00.00"}]}}]}, "vendor_name": "Dell"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a Time-of-check Time-of-use (TOCTOU) race condition vulnerability. A remote authenticated attacker could potentially exploit this vulnerability to gain elevated privileges when a user with higher privileges is simultaneously accessing iDRAC through the web interface."}]}, "impact": {"cvss": {"baseScore": 5.9, "baseSeverity": "Medium", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:H/A:L", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Other"}]}]}, "references": {"reference_data": [{"name": "https://www.dell.com/support/kbdoc/000185293", "refsource": "MISC", "url": "https://www.dell.com/support/kbdoc/000185293"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:16:22.969Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.dell.com/support/kbdoc/000185293"}]}]}, "cveMetadata": {"assignerOrgId": "c550e75a-17ff-4988-97f0-544cde3820fe", "assignerShortName": "dell", "cveId": "CVE-2021-21539", "datePublished": "2021-04-30T20:55:18.417395Z", "dateReserved": "2021-01-04T00:00:00", "dateUpdated": "2024-09-16T16:58:47.474Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:dell:idrac9_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "5E9ED974-1468-4B8B-B82E-5E0340C2601B", "versionEndExcluding": "4.40.00.00", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a Time-of-check Time-of-use (TOCTOU) race condition vulnerability. A remote authenticated attacker could potentially exploit this vulnerability to gain elevated privileges when a user with higher privileges is simultaneously accessing iDRAC through the web interface."}, {"lang": "es", "value": "Dell EMC iDRAC9 versiones anteriores a 4.40.00.00, contiene una vulnerabilidad de condici\u00f3n de carrera Time-of-check Time-of-use (TOCTOU). Un atacante autenticado remoto podr\u00eda explotar potencialmente esta vulnerabilidad para alcanzar privilegios elevados cuando un usuario con privilegios m\u00e1s elevados accede simult\u00e1neamente a iDRAC a trav\u00e9s de la interfaz web."}], "id": "CVE-2021-21539", "lastModified": "2024-11-21T05:48:33.110", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 4.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:H/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 4.7, "source": "security_alert@emc.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-04-30T21:15:08.707", "references": [{"source": "security_alert@emc.com", "tags": ["Vendor Advisory"], "url": "https://www.dell.com/support/kbdoc/000185293"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.dell.com/support/kbdoc/000185293"}], "sourceIdentifier": "security_alert@emc.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "nvd@nist.gov", "type": "Primary"}]}