CVE-2019-15800

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Due to lack of input validation in the cmd_sys_traceroute_exec(), cmd_sys_arp_clear(), and cmd_sys_ping_exec() functions in the libclicmd.so library contained in the firmware, an attacker could leverage these functions to call system() and execute arbitrary commands on the switches. (Note that these functions are currently not called in this version of the firmware, however an attacker could use other vulnerabilities to finally use these vulnerabilities to gain code execution.)"}, {"lang": "es", "value": "Se descubri\u00f3 un problema en los dispositivos Zyxel GS1900 con firmware anterior a 2.50 (AAHH.0) C0. Debido a la falta de validaci\u00f3n de entrada en las funciones cmd_sys_traceroute_exec (), cmd_sys_arp_clear () y cmd_sys_ping_exec () en la biblioteca libclicmd.so contenida en el firmware, un atacante podr\u00eda aprovechar estas funciones para llamar al sistema () y ejecutar comandos arbitrarios en los conmutadores . (Tenga en cuenta que estas funciones no se invocan actualmente en esta versi\u00f3n del firmware, sin embargo, un atacante podr\u00eda usar otras vulnerabilidades para finalmente usar estas vulnerabilidades para obtener la ejecuci\u00f3n del c\u00f3digo)."}], "id": "CVE-2019-15800", "lastModified": "2026-06-17T02:21:05.997", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 10.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-11-14T21:15:11.687", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://jasper.la/exploring-zyxel-gs1900-firmware-with-ghidra.html"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://jasper.la/exploring-zyxel-gs1900-firmware-with-ghidra.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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