{"dataType": "CVE_RECORD", "dataVersion": "5.0", "cveMetadata": {"cveId": "CVE-2021-26734", "assignerOrgId": "73c6f63b-efac-410d-a0a9-569700f85a04", "state": "PUBLISHED", "assignerShortName": "Zscaler", "dateReserved": "2021-02-05T20:34:27.823Z", "datePublished": "2023-10-23T13:18:36.569Z", "dateUpdated": "2023-10-23T13:18:36.569Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Client Connector", "vendor": "Zscaler", "versions": [{"lessThan": "3.4.0.124", "status": "affected", "version": "0", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Benjamin Dubost, LMCO"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Zscaler Client Connector Installer on Windows before version 3.4.0.124 improperly handled directory junctions during uninstallation. A local adversary may be able to delete folders in an elevated context.<br>\n\n<br>\n\n"}], "value": "Zscaler Client Connector Installer on Windows before version 3.4.0.124 improperly handled directory junctions during uninstallation. A local adversary may be able to delete folders in an elevated context.\n\n\n\n\n\n"}], "impacts": [{"capecId": "CAPEC-233", "descriptions": [{"lang": "en", "value": "CAPEC-233 Privilege Escalation"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-269", "description": "CWE-269 Improper Privilege Management", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "73c6f63b-efac-410d-a0a9-569700f85a04", "shortName": "Zscaler", "dateUpdated": "2023-10-23T13:18:36.569Z"}, "references": [{"url": "https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2021"}], "source": {"discovery": "UNKNOWN"}, "title": "Junction Delete leading to elevation of privilege", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}}}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:windows:*:*", "matchCriteriaId": "8318DD99-D4B2-4917-AAB3-56D65DE97B57", "versionEndExcluding": "3.4.0.124", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Zscaler Client Connector Installer on Windows before version 3.4.0.124 improperly handled directory junctions during uninstallation. A local adversary may be able to delete folders in an elevated context.\n\n\n\n\n\n"}, {"lang": "es", "value": "El instalador de Zscaler Client Connector en Windows anterior a la versi\u00f3n 3.4.0.124 manejaba incorrectamente las uniones de directorios durante la desinstalaci\u00f3n. Un adversario local puede eliminar carpetas en un contexto elevado."}], "id": "CVE-2021-26734", "lastModified": "2023-10-27T00:30:43.053", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 3.6, "source": "cve@zscaler.com", "type": "Secondary"}]}, "published": "2023-10-23T14:15:08.927", "references": [{"source": "cve@zscaler.com", "tags": ["Release Notes"], "url": "https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2021"}], "sourceIdentifier": "cve@zscaler.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-269"}], "source": "cve@zscaler.com", "type": "Secondary"}]}

{}