CVE-2020-4887 - Vulnerability Details - OpenCVE

Description

IBM AIX 7.1, 7.2 and AIX VIOS 3.1 could allow a local user to exploit a vulnerability in the gencore user command to create arbitrary files in any directory. IBM X-Force ID: 190911.

Published: 2021-01-20

Score: 5.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

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

Vendor Product Default status Versions

IBM

AIX

affected

Version	Status	Constraints
`7.1`	affected	—
`7.2`	affected	—

IBM

VIOS

affected

Version	Status	Constraints
`3.1`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:ibm:vios:3.1:::::::*
	cpe:2.3:o:ibm:aix:7.1:::::::*
	cpe:2.3:o:ibm:aix:7.2:::::::*

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2020-26134	IBM AIX 7.1, 7.2 and AIX VIOS 3.1 could allow a local user to exploit a vulnerability in the gencore user command to create arbitrary files in any directory. IBM X-Force ID: 190911.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00042.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://exchange.xforce.ibmcloud.com/vulnerabilities/190911
https://www.ibm.com/support/pages/node/6406022

History

No history.

Subscriptions

Ibm Aix Vios

MITRE

Status: PUBLISHED

Assigner: ibm

Published: 2021-01-20T15:00:27.437Z

Updated: 2024-09-16T19:56:36.264Z

Reserved: 2019-12-30T00:00:00.000Z

Link: CVE-2020-4887

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-01-20T15:15:42.317

Modified: 2024-11-21T05:33:22.413

Link: CVE-2020-4887

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

NVD-CWE-noinfo

{"containers": {"cna": {"affected": [{"product": "AIX", "vendor": "IBM", "versions": [{"status": "affected", "version": "7.1"}, {"status": "affected", "version": "7.2"}]}, {"product": "VIOS", "vendor": "IBM", "versions": [{"status": "affected", "version": "3.1"}]}], "datePublic": "2021-01-19T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "IBM AIX 7.1, 7.2 and AIX VIOS 3.1 could allow a local user to exploit a vulnerability in the gencore user command to create arbitrary files in any directory. IBM X-Force ID: 190911."}], "metrics": [{"cvssV3_0": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "exploitCodeMaturity": "UNPROVEN", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "remediationLevel": "OFFICIAL_FIX", "reportConfidence": "CONFIRMED", "scope": "UNCHANGED", "temporalScore": 5.4, "temporalSeverity": "MEDIUM", "userInteraction": "NONE", "vectorString": "CVSS:3.0/C:N/I:H/AC:L/AV:L/A:N/S:U/PR:N/UI:N/E:U/RL:O/RC:C", "version": "3.0"}}], "problemTypes": [{"descriptions": [{"description": "Data Manipulation", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-01-20T15:00:27.000Z", "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://www.ibm.com/support/pages/node/6406022"}, {"name": "ibm-aix-cve20204887-file-write (190911)", "tags": ["vdb-entry", "x_refsource_XF"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/190911"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "psirt@us.ibm.com", "DATE_PUBLIC": "2021-01-19T00:00:00", "ID": "CVE-2020-4887", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "AIX", "version": {"version_data": [{"version_value": "7.1"}, {"version_value": "7.2"}]}}, {"product_name": "VIOS", "version": {"version_data": [{"version_value": "3.1"}]}}]}, "vendor_name": "IBM"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "IBM AIX 7.1, 7.2 and AIX VIOS 3.1 could allow a local user to exploit a vulnerability in the gencore user command to create arbitrary files in any directory. IBM X-Force ID: 190911."}]}, "impact": {"cvssv3": {"BM": {"A": "N", "AC": "L", "AV": "L", "C": "N", "I": "H", "PR": "N", "S": "U", "UI": "N"}, "TM": {"E": "U", "RC": "C", "RL": "O"}}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Data Manipulation"}]}]}, "references": {"reference_data": [{"name": "https://www.ibm.com/support/pages/node/6406022", "refsource": "CONFIRM", "title": "IBM Security Bulletin 6406022 (AIX)", "url": "https://www.ibm.com/support/pages/node/6406022"}, {"name": "ibm-aix-cve20204887-file-write (190911)", "refsource": "XF", "title": "X-Force Vulnerability Report", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/190911"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T08:14:59.190Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.ibm.com/support/pages/node/6406022"}, {"name": "ibm-aix-cve20204887-file-write (190911)", "tags": ["vdb-entry", "x_refsource_XF", "x_transferred"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/190911"}]}]}, "cveMetadata": {"assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "assignerShortName": "ibm", "cveId": "CVE-2020-4887", "datePublished": "2021-01-20T15:00:27.437Z", "dateReserved": "2019-12-30T00:00:00.000Z", "dateUpdated": "2024-09-16T19:56:36.264Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ibm:vios:3.1:*:*:*:*:*:*:*", "matchCriteriaId": "6F61BE89-FBDE-4312-8422-86D1A9F57C9E", "vulnerable": true}, {"criteria": "cpe:2.3:o:ibm:aix:7.1:*:*:*:*:*:*:*", "matchCriteriaId": "0402E20C-8B41-4A2A-BFF9-92EC843985F0", "vulnerable": true}, {"criteria": "cpe:2.3:o:ibm:aix:7.2:*:*:*:*:*:*:*", "matchCriteriaId": "6791504A-A48A-4ED0-94AF-4C8A3B91516F", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "IBM AIX 7.1, 7.2 and AIX VIOS 3.1 could allow a local user to exploit a vulnerability in the gencore user command to create arbitrary files in any directory. IBM X-Force ID: 190911."}, {"lang": "es", "value": "IBM AIX versiones 7.1, 7.2 y AIX VIOS versi\u00f3n 3.1, podr\u00edan permitir a un usuario local explotar una vulnerabilidad en el comando de usuario gencore para crear archivos arbitrarios en cualquier directorio. IBM X-Force ID: 190911"}], "id": "CVE-2020-4887", "lastModified": "2024-11-21T05:33:22.413", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 2.5, "impactScore": 3.6, "source": "psirt@us.ibm.com", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-01-20T15:15:42.317", "references": [{"source": "psirt@us.ibm.com", "tags": ["VDB Entry", "Vendor Advisory"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/190911"}, {"source": "psirt@us.ibm.com", "tags": ["Vendor Advisory"], "url": "https://www.ibm.com/support/pages/node/6406022"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["VDB Entry", "Vendor Advisory"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/190911"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.ibm.com/support/pages/node/6406022"}], "sourceIdentifier": "psirt@us.ibm.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}