mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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365 lines
11 KiB
JSON
365 lines
11 KiB
JSON
{
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"id": "CVE-2019-15803",
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"sourceIdentifier": "cve@mitre.org",
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"published": "2019-11-14T21:15:11.890",
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"lastModified": "2024-11-21T04:29:29.943",
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"vulnStatus": "Modified",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. Through an undocumented sequence of keypresses, undocumented functionality is triggered. A diagnostics shell is triggered via CTRL-ALT-t, which prompts for the password returned by fds_sys_passDebugPasswd_ret(). The firmware contains access control checks that determine if remote users are allowed to access this functionality. The function that performs this check (fds_sys_remoteDebugEnable_ret in libfds.so) always return TRUE with no actual checks performed. The diagnostics menu allows for reading/writing arbitrary registers and various other configuration parameters which are believed to be related to the network interface chips."
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},
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{
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"lang": "es",
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"value": "Se descubri\u00f3 un problema en los dispositivos Zyxel GS1900 con firmware anterior a la versi\u00f3n 2.50 (AAHH.0) C0. A trav\u00e9s de una secuencia indocumentada de pulsaciones de teclas, se activa la funcionalidad no documentada. Se activa un shell de diagn\u00f3stico a trav\u00e9s de CTRL-ALT-t, que solicita la contrase\u00f1a devuelta por fds_sys_passDebugPasswd_ret (). El firmware contiene comprobaciones de control de acceso que determinan si los usuarios remotos pueden acceder a esta funcionalidad. La funci\u00f3n que realiza esta comprobaci\u00f3n (fds_sys_remoteDebugEnable_ret en libfds.so) siempre devuelve VERDADERO sin realizar comprobaciones reales. El men\u00fa de diagn\u00f3stico permite leer / escribir registros arbitrarios y varios otros par\u00e1metros de configuraci\u00f3n que se cree que est\u00e1n relacionados con los chips de la interfaz de red."
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}
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],
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"metrics": {
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
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"baseScore": 9.1,
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"baseSeverity": "CRITICAL",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "NONE"
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},
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"exploitabilityScore": 3.9,
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"impactScore": 5.2
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}
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],
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"type": "Primary",
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"version": "2.0",
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"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N",
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"baseScore": 6.4,
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"accessVector": "NETWORK",
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"accessComplexity": "LOW",
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"authentication": "NONE",
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"confidentialityImpact": "PARTIAL",
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"integrityImpact": "PARTIAL",
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"availabilityImpact": "NONE"
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},
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"baseSeverity": "MEDIUM",
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"exploitabilityScore": 10.0,
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"impactScore": 4.9,
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"acInsufInfo": false,
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"obtainAllPrivilege": false,
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"userInteractionRequired": false
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}
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"weaknesses": [
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"description": [
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"lang": "en",
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"value": "CWE-287"
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"references": [
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{
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"url": "https://jasper.la/exploring-zyxel-gs1900-firmware-with-ghidra.html",
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"source": "af854a3a-2127-422b-91ae-364da2661108",
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