CVE-2019-15801

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The firmware image contains encrypted passwords that are used to authenticate users wishing to access a diagnostics or password-recovery menu. Using the hardcoded cryptographic key found elsewhere in the firmware, these passwords can be decrypted. This is related to fds_sys_passDebugPasswd_ret() and fds_sys_passRecoveryPasswd_ret() in libfds.so.0.0."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en los dispositivos Zyxel GS1900 con firmware anterior a la versi\u00f3n 2.50 (AAHH.0) C0. La imagen del firmware contiene contrase\u00f1as cifradas que se utilizan para autenticar a los usuarios que desean acceder a un men\u00fa de diagn\u00f3stico o recuperaci\u00f3n de contrase\u00f1a. Usando la clave criptogr\u00e1fica codificada que se encuentra en otra parte del firmware, estas contrase\u00f1as se pueden descifrar. Esto est\u00e1 relacionado con fds_sys_passDebugPasswd_ret () y fds_sys_passRecoveryPasswd_ret () en libfds.so.0.0."}], "id": "CVE-2019-15801", "lastModified": "2026-06-17T02:21:06.140", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-11-14T21:15:11.750", "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-798"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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