{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-51636", "assignerOrgId": "99f1926a-a320-47d8-bbb5-42feb611262e", "state": "PUBLISHED", "assignerShortName": "zdi", "dateReserved": "2023-12-20T21:52:34.963Z", "datePublished": "2024-05-22T19:16:48.396Z", "dateUpdated": "2024-08-02T22:40:34.068Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "99f1926a-a320-47d8-bbb5-42feb611262e", "shortName": "zdi", "dateUpdated": "2024-05-22T19:16:48.396Z"}, "title": "Avira Prime Link Following Local Privilege Escalation Vulnerability", "descriptions": [{"lang": "en", "value": "Avira Prime Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avira Prime. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.\n\nThe specific flaw exists within the Avira Spotlight Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-21600."}], "affected": [{"vendor": "Avira", "product": "Prime", "versions": [{"version": "1.1.94.4", "status": "affected"}], "defaultStatus": "unknown"}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-59", "description": "CWE-59: Improper Link Resolution Before File Access ('Link Following')", "type": "CWE"}]}], "references": [{"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-469/", "name": "ZDI-24-469", "tags": ["x_research-advisory"]}], "dateAssigned": "2023-12-20T22:02:27.484Z", "datePublic": "2024-05-17T23:23:37.158Z", "source": {"lang": "en", "value": "Filip Dragovic (@filip_dragovic)"}, "metrics": [{"format": "CVSS", "cvssV3_0": {"version": "3.0", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}}]}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-51636", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2024-05-23T17:10:38.775370Z"}}}], "affected": [{"cpes": ["cpe:2.3:a:avira:prime:*:*:*:*:*:*:*:*"], "vendor": "avira", "product": "prime", "versions": [{"status": "affected", "version": "1.1.94.4"}], "defaultStatus": "unknown"}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:20:19.959Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T22:40:34.068Z"}, "title": "CVE Program Container", "references": [{"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-469/", "name": "ZDI-24-469", "tags": ["x_research-advisory", "x_transferred"]}]}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:avira:avira_prime:*:*:*:*:*:*:*:*", "matchCriteriaId": "6258B9CC-A222-4CA5-9302-31FC56B2D74E", "versionEndExcluding": "6.27.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Avira Prime Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avira Prime. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.\n\nThe specific flaw exists within the Avira Spotlight Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-21600."}, {"lang": "es", "value": "Avira Prime Link tras una vulnerabilidad de escalada de privilegios local. Esta vulnerabilidad permite a atacantes locales escalar privilegios en las instalaciones afectadas de Avira Prime. Un atacante primero debe obtener la capacidad de ejecutar c\u00f3digo con pocos privilegios en el sistema de destino para poder aprovechar esta vulnerabilidad. El fallo espec\u00edfico existe en el servicio Avira Spotlight. Al crear un enlace simb\u00f3lico, un atacante puede abusar del servicio para eliminar un archivo. Un atacante puede aprovechar esta vulnerabilidad para escalar privilegios y ejecutar c\u00f3digo arbitrario en el contexto de SYSTEM. Era ZDI-CAN-21600."}], "id": "CVE-2023-51636", "lastModified": "2025-08-14T19:29:24.620", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}]}, "published": "2024-05-22T20:15:08.407", "references": [{"source": "zdi-disclosures@trendmicro.com", "tags": ["Third Party Advisory"], "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-469/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-469/"}], "sourceIdentifier": "zdi-disclosures@trendmicro.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-59"}], "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}]}

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