CVE-2017-7572

{"id": "CVE-2017-7572", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 9.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "MEDIUM", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.2}]}, "published": "2017-04-06T18:59:00.353", "references": [{"url": "https://github.com/bit-team/backintime/commit/7f208dc547f569b689c888103e3b593a48cd1869", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-362"}]}], "descriptions": [{"lang": "en", "value": "The _checkPolkitPrivilege function in serviceHelper.py in Back In Time (aka backintime) 1.1.18 and earlier uses a deprecated polkit authorization method (unix-process) that is subject to a race condition (time of check, time of use). With this authorization method, the owner of a process requesting a polkit operation is checked by polkitd via /proc/<pid>/status, by which time the requesting process may have been replaced by a different process with the same PID that has different privileges then the original requester."}, {"lang": "es", "value": "La funci\u00f3n _checkPolkitPrivilege en serviceHelper.py en Back In Time (tambi\u00e9n conocido como backintime) 1.1.18 y versiones anteriores utiliza un m\u00e9todo de autorizaci\u00f3n polkit obsoleto (unix-process) que est\u00e1 sujeto a una condici\u00f3n de carrera (hora del cheque, tiempo de uso). Con este m\u00e9todo de autorizaci\u00f3n, el propietario de un proceso que solicita una operaci\u00f3n polkit es verificado por polkitd a trav\u00e9s de /proc//status, momento en el cual el proceso solicitante puede haber sido reemplazado por un proceso diferente con el mismo PID que tiene privilegios diferentes que el solicitante original."}], "lastModified": "2017-04-12T20:48:02.560", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:backintime_project:backintime:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F27244E7-76AC-4A73-B01D-F76B0A27DAF2", "versionEndIncluding": "1.1.18"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}