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122 lines
3.9 KiB
JSON
122 lines
3.9 KiB
JSON
{
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"id": "CVE-2018-18556",
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"sourceIdentifier": "cve@mitre.org",
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"published": "2018-12-17T19:29:00.627",
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"lastModified": "2023-01-20T15:28:06.240",
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"vulnStatus": "Analyzed",
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"descriptions": [
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{
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"lang": "en",
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"value": "A privilege escalation issue was discovered in VyOS 1.1.8. The default configuration also allows operator users to execute the pppd binary with elevated (sudo) permissions. Certain input parameters are not properly validated. A malicious operator user can run the binary with elevated permissions and leverage its improper input validation condition to spawn an attacker-controlled shell with root privileges."
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},
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{
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"lang": "es",
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"value": "Se ha descubierto un problema de escalado de privilegios en VyOS 1.1.8. La configuraci\u00f3n por defecto tambi\u00e9n permite que los usuarios operadores ejecuten el binario pppd con permisos elevados (sudo). Ciertos par\u00e1metros de entrada no se validan correctamente. Un usuario operador malicioso puede ejecutar el binario con permisos elevados y aprovechar su condici\u00f3n de validaci\u00f3n incorrecta para lanzar un shell controlado por el atacante con privilegios root."
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}
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],
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"metrics": {
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"cvssMetricV31": [
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{
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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:L/UI:N/S:C/C:H/I:H/A:H",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "CHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH",
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"baseScore": 9.9,
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"baseSeverity": "CRITICAL"
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},
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"exploitabilityScore": 3.1,
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"impactScore": 6.0
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}
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],
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"cvssMetricV2": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "2.0",
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"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
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"accessVector": "NETWORK",
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"accessComplexity": "LOW",
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"authentication": "SINGLE",
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"confidentialityImpact": "COMPLETE",
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"integrityImpact": "COMPLETE",
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"availabilityImpact": "COMPLETE",
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"baseScore": 9.0
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},
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"baseSeverity": "HIGH",
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"exploitabilityScore": 8.0,
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"impactScore": 10.0,
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"acInsufInfo": false,
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"obtainAllPrivilege": false,
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"obtainUserPrivilege": false,
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"obtainOtherPrivilege": false,
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"userInteractionRequired": false
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}
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]
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},
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"weaknesses": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "NVD-CWE-noinfo"
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}
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]
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}
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],
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"configurations": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:vyos:vyos:1.1.8:*:*:*:*:*:*:*",
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"matchCriteriaId": "7959038B-A2A9-49EE-9684-56209F2A7CC2"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "http://packetstormsecurity.com/files/159234/VyOS-restricted-shell-Escape-Privilege-Escalation.html",
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"source": "cve@mitre.org",
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"tags": [
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"Exploit",
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"Third Party Advisory",
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"VDB Entry"
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]
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},
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{
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"url": "https://blog.mirch.io/2018/11/05/cve-2018-18556-vyos-privilege-escalation-via-sudo-pppd-for-operator-users/",
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"source": "cve@mitre.org",
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"tags": [
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"Exploit",
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"Third Party Advisory"
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]
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},
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{
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"url": "https://blog.vyos.io/the-operator-level-is-proved-insecure-and-will-be-removed-in-the-next-releases",
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"source": "cve@mitre.org",
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"tags": [
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"Exploit",
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"Vendor Advisory"
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]
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}
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]
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} |