CVE-2021-3969 - Vulnerability Details - OpenCVE

Description

A Time of Check Time of Use (TOCTOU) vulnerability was reported in IMController, a software component of Lenovo System Interface Foundation, prior to version 1.1.20.3that could allow a local attacker to elevate privileges.

Published: 2022-05-18

Score: 7.8 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Lenovo

IMController

affected

Version	Status	Constraints
`unspecified`	affected	< 1.1.20.3

Configuration 1 [-]

cpe:2.3:a:lenovo:system_interface_foundation:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

Vendor Solution

Update the IMController component of Lenovo System Interface Foundation to version 1.1.20.3. Full mitigation guidance can be found in LEN-75210.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-27174	A Time of Check Time of Use (TOCTOU) vulnerability was reported in IMController, a software component of Lenovo System Interface Foundation, prior to version 1.1.20.3that could allow a local attacker to elevate privileges.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00418.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://support.lenovo.com/us/en/product_security/LEN-75210

History

No history.

Subscriptions

Lenovo System Interface Foundation

MITRE

Status: PUBLISHED

Assigner: lenovo

Published: 2022-05-18T16:10:25.000Z

Updated: 2024-08-03T17:09:09.613Z

Reserved: 2021-11-17T00:00:00.000Z

Link: CVE-2021-3969

Vulnrichment

No data.

NVD

Status : Modified

Published: 2022-05-18T16:15:08.127

Modified: 2024-11-21T06:23:15.573

Link: CVE-2021-3969

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-367

{"containers": {"cna": {"affected": [{"product": "IMController", "vendor": "Lenovo", "versions": [{"lessThan": "1.1.20.3", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Lenovo thanks Rick Veldhoven from Fox-IT, part of NCC Group for reporting this issue."}], "descriptions": [{"lang": "en", "value": "A Time of Check Time of Use (TOCTOU) vulnerability was reported in IMController, a software component of Lenovo System Interface Foundation, prior to version 1.1.20.3that could allow a local attacker to elevate privileges."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-367", "description": "CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-05-18T16:10:25.000Z", "orgId": "da227ddf-6e25-4b41-b023-0f976dcaca4b", "shortName": "lenovo"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://support.lenovo.com/us/en/product_security/LEN-75210"}], "solutions": [{"lang": "en", "value": "Update the IMController component of Lenovo System Interface Foundation to version 1.1.20.3. Full mitigation guidance can be found in LEN-75210."}], "source": {"advisory": "LEN-75210", "discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "psirt@lenovo.com", "ID": "CVE-2021-3969", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "IMController", "version": {"version_data": [{"version_affected": "<", "version_value": "1.1.20.3"}]}}]}, "vendor_name": "Lenovo"}]}}, "credit": [{"lang": "eng", "value": "Lenovo thanks Rick Veldhoven from Fox-IT, part of NCC Group for reporting this issue."}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A Time of Check Time of Use (TOCTOU) vulnerability was reported in IMController, a software component of Lenovo System Interface Foundation, prior to version 1.1.20.3that could allow a local attacker to elevate privileges."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition"}]}]}, "references": {"reference_data": [{"name": "https://support.lenovo.com/us/en/product_security/LEN-75210", "refsource": "MISC", "url": "https://support.lenovo.com/us/en/product_security/LEN-75210"}]}, "solution": [{"lang": "en", "value": "Update the IMController component of Lenovo System Interface Foundation to version 1.1.20.3. Full mitigation guidance can be found in LEN-75210."}], "source": {"advisory": "LEN-75210", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:09:09.613Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://support.lenovo.com/us/en/product_security/LEN-75210"}]}]}, "cveMetadata": {"assignerOrgId": "da227ddf-6e25-4b41-b023-0f976dcaca4b", "assignerShortName": "lenovo", "cveId": "CVE-2021-3969", "datePublished": "2022-05-18T16:10:25.000Z", "dateReserved": "2021-11-17T00:00:00.000Z", "dateUpdated": "2024-08-03T17:09:09.613Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:lenovo:system_interface_foundation:*:*:*:*:*:*:*:*", "matchCriteriaId": "0F598C27-8CC6-4F51-9CF1-39AC66E8A9F8", "versionEndExcluding": "1.1.20.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "A Time of Check Time of Use (TOCTOU) vulnerability was reported in IMController, a software component of Lenovo System Interface Foundation, prior to version 1.1.20.3that could allow a local attacker to elevate privileges."}, {"lang": "es", "value": "Se inform\u00f3 de una vulnerabilidad en el tiempo de comprobaci\u00f3n del tiempo de uso (TOCTOU) en IMController, un componente de software de Lenovo System Interface Foundation, versiones anteriores a 1.1.20.3, que podr\u00eda permitir a un atacante local elevar sus privilegios"}], "id": "CVE-2021-3969", "lastModified": "2024-11-21T06:23:15.573", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.4, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "psirt@lenovo.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-05-18T16:15:08.127", "references": [{"source": "psirt@lenovo.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://support.lenovo.com/us/en/product_security/LEN-75210"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://support.lenovo.com/us/en/product_security/LEN-75210"}], "sourceIdentifier": "psirt@lenovo.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "psirt@lenovo.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-367"}], "source": "nvd@nist.gov", "type": "Primary"}]}