CVE-2021-38085

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:canon:pixma_tr150_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "57DF80AA-2E02-41F3-A742-2DBB6070F7AA", "versionEndIncluding": "3.71.2.10", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:canon:pixma_tr150:-:*:*:*:*:*:*:*", "matchCriteriaId": "511CD694-8B8F-4318-9AA8-B272AB9592F5", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Canon TR150 print driver through 3.71.2.10 is vulnerable to a privilege escalation issue. During the add printer process, a local attacker can overwrite CNMurGE.dll and, if timed properly, the overwritten DLL will be loaded into a SYSTEM process resulting in escalation of privileges. This occurs because the driver drops a world-writable DLL into a CanonBJ %PROGRAMDATA% location that gets loaded by printisolationhost (a system process)."}, {"lang": "es", "value": "El controlador de impresi\u00f3n Canon TR150 versiones hasta 3.71.2.10, es vulnerable a un problema de escalada de privilegios. Durante el proceso add printer, un atacante local puede sobrescribir la biblioteca CNMurGE.dll y, si se sincroniza apropiadamente, la DLL sobrescrita ser\u00e1 cargada en un proceso SYSTEM, resultando en una escalada de privilegios. Esto ocurre porque el controlador deja caer una DLL escribible en el mundo en una ubicaci\u00f3n %PROGRAMDATA% de CanonBJ que es cargada por printisolationhost (un proceso del sistema)"}], "id": "CVE-2021-38085", "lastModified": "2026-06-17T04:01:26.170", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 10.0, "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": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-08-11T18:15:07.500", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/163795/Canon-TR150-Driver-3.71.2.10-Privilege-Escalation.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://defcon.org/html/defcon-29/dc-29-speakers.html#baines"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://raw.githubusercontent.com/jacob-baines/vuln_disclosure/main/vuln_2021_03.txt"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.youtube.com/watch?v=vdesswZYz-8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/163795/Canon-TR150-Driver-3.71.2.10-Privilege-Escalation.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://defcon.org/html/defcon-29/dc-29-speakers.html#baines"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://raw.githubusercontent.com/jacob-baines/vuln_disclosure/main/vuln_2021_03.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.youtube.com/watch?v=vdesswZYz-8"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-732"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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