CVE-2020-24356 - Vulnerability Details - OpenCVE

`cloudflared` versions prior to 2020.8.1 contain a local privilege escalation vulnerability on Windows systems. When run on a Windows system, `cloudflared` searches for configuration files which could be abused by a malicious entity to execute commands as a privileged user. Version 2020.8.1 fixes this issue.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00033.

Key SSVC decision points have not yet been added.

Vendors	Products
Cloudflare Subscribe	Cloudflared Subscribe

Configuration 1 [-]

cpe:2.3:a:cloudflare:cloudflared:*:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2021-1103	`cloudflared` versions prior to 2020.8.1 contain a local privilege escalation vulnerability on Windows systems. When run on a Windows system, `cloudflared` searches for configuration files which could be abused by a malicious entity to execute commands as a privileged user. Version 2020.8.1 fixes this issue.
Github GHSA	GHSA-hgwp-4vp4-qmm2	Local Privilege Escalation in cloudflared

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/cloudflare/cloudflared/security/advisories/GHSA-hgwp-4vp4-qmm2

History

No history.

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: cloudflare

Published: 2020-10-02T14:16:23.809007Z

Updated: 2024-09-17T01:46:28.741Z

Reserved: 2020-08-14T00:00:00

Link: CVE-2020-24356

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-10-02T15:15:12.483

Modified: 2024-11-21T05:14:39.480

Link: CVE-2020-24356

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-427

{"containers": {"cna": {"affected": [{"product": "cloudflared", "vendor": "Cloudflare", "versions": [{"lessThan": "2020.8.1", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "datePublic": "2020-09-17T00:00:00", "descriptions": [{"lang": "en", "value": "`cloudflared` versions prior to 2020.8.1 contain a local privilege escalation vulnerability on Windows systems. When run on a Windows system, `cloudflared` searches for configuration files which could be abused by a malicious entity to execute commands as a privileged user. Version 2020.8.1 fixes this issue."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"description": "Local Privilege Escalation", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-10-02T14:16:23", "orgId": "a22f1246-ba21-4bb4-a601-ad51614c1513", "shortName": "cloudflare"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/cloudflare/cloudflared/security/advisories/GHSA-hgwp-4vp4-qmm2"}], "source": {"discovery": "EXTERNAL"}, "title": "Local Privilege Escalation in cloudflared", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cna@cloudflare.com", "DATE_PUBLIC": "2020-09-17T18:45:00.000Z", "ID": "CVE-2020-24356", "STATE": "PUBLIC", "TITLE": "Local Privilege Escalation in cloudflared"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "cloudflared", "version": {"version_data": [{"version_affected": "<", "version_value": "2020.8.1"}]}}]}, "vendor_name": "Cloudflare"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "`cloudflared` versions prior to 2020.8.1 contain a local privilege escalation vulnerability on Windows systems. When run on a Windows system, `cloudflared` searches for configuration files which could be abused by a malicious entity to execute commands as a privileged user. Version 2020.8.1 fixes this issue."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Local Privilege Escalation"}]}]}, "references": {"reference_data": [{"refsource": "CONFIRM", "url": "https://github.com/cloudflare/cloudflared/security/advisories/GHSA-hgwp-4vp4-qmm2"}]}, "source": {"discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T15:12:08.634Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/cloudflare/cloudflared/security/advisories/GHSA-hgwp-4vp4-qmm2"}]}]}, "cveMetadata": {"assignerOrgId": "a22f1246-ba21-4bb4-a601-ad51614c1513", "assignerShortName": "cloudflare", "cveId": "CVE-2020-24356", "datePublished": "2020-10-02T14:16:23.809007Z", "dateReserved": "2020-08-14T00:00:00", "dateUpdated": "2024-09-17T01:46:28.741Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cloudflare:cloudflared:*:*:*:*:*:*:*:*", "matchCriteriaId": "2FBA4059-5A07-40A9-A872-A0EA31E346ED", "versionEndExcluding": "2020.8.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "`cloudflared` versions prior to 2020.8.1 contain a local privilege escalation vulnerability on Windows systems. When run on a Windows system, `cloudflared` searches for configuration files which could be abused by a malicious entity to execute commands as a privileged user. Version 2020.8.1 fixes this issue."}, {"lang": "es", "value": "\"cloudflared\" versiones anteriores a 2020.8.1, contiene una vulnerabilidad de escalada de privilegios local en los sistemas Windows. Cuando se ejecuta en un sistema Windows, \"cloudflared\" busca archivos de configuraci\u00f3n que podr\u00edan ser abusados ??por una entidad maliciosa para ejecutar comandos como un usuario privilegiado. La versi\u00f3n 2020.8.1 corrige este problema"}], "id": "CVE-2020-24356", "lastModified": "2024-11-21T05:14:39.480", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/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": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.1, "impactScore": 4.7, "source": "cna@cloudflare.com", "type": "Secondary"}, {"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": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-10-02T15:15:12.483", "references": [{"source": "cna@cloudflare.com", "tags": ["Third Party Advisory"], "url": "https://github.com/cloudflare/cloudflared/security/advisories/GHSA-hgwp-4vp4-qmm2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/cloudflare/cloudflared/security/advisories/GHSA-hgwp-4vp4-qmm2"}], "sourceIdentifier": "cna@cloudflare.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-427"}], "source": "nvd@nist.gov", "type": "Primary"}]}