CVE-2018-8712

An issue was discovered in Webmin 1.840 and 1.880 when the default Yes setting of "Can view any file as a log file" is enabled. As a result of weak default configuration settings, limited users have full access rights to the underlying Unix system files, allowing the user to read sensitive data from the local system (using Local File Include) such as the '/etc/shadow' file via a "GET /syslog/save_log.cgi?view=1&file=/etc/shadow" request.

CVSS v3 9.8 CRITICAL
CVSS v2.0 5.0 MEDIUM

9.8^/10

CVSS v3 : CRITICAL

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://www.7elements.co.uk/resources/technical-advisories/webmin-1-840-1-880-unrestricted-access-arbitrary-files-using-local-file-include/	Issue Tracking

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:webmin:webmin:1.840:::::::*
	cpe:2.3:a:webmin:webmin:1.880:::::::*

History

No history.

Information

Published : 2018-03-14 19:29

Updated : 2023-12-10 12:30

NVD link : CVE-2018-8712

Mitre link : CVE-2018-8712

CVE.ORG link : CVE-2018-8712

JSON object : View

Products Affected

webmin

webmin

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

{"id": "CVE-2018-8712", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2018-03-14T19:29:00.830", "references": [{"url": "https://www.7elements.co.uk/resources/technical-advisories/webmin-1-840-1-880-unrestricted-access-arbitrary-files-using-local-file-include/", "tags": ["Issue Tracking"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in Webmin 1.840 and 1.880 when the default Yes setting of \"Can view any file as a log file\" is enabled. As a result of weak default configuration settings, limited users have full access rights to the underlying Unix system files, allowing the user to read sensitive data from the local system (using Local File Include) such as the '/etc/shadow' file via a \"GET /syslog/save_log.cgi?view=1&file=/etc/shadow\" request."}, {"lang": "es", "value": "Se ha descubierto un problema en Webmin 1.840 y 1.880 cuando est\u00e1 habilitada la opci\u00f3n por defecto Yes de \"Can view any file as a log file\". Como resultado de las opciones de configuraci\u00f3n por defecto d\u00e9biles, los usuarios limitados tienen acceso total a los archivos del sistema Unix subyacentes. Esto permite que el usuario lea datos sensibles del sistema local (empleando Local File Include) tales como el archivo \"/etc/shadow\" mediante una petici\u00f3n \"GET /syslog/save_log.cgi?view=1file=/etc/shadow\"."}], "lastModified": "2018-04-10T18:46:58.040", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:webmin:webmin:1.840:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8C90E884-CC69-40BD-928D-22CB3912CE1C"}, {"criteria": "cpe:2.3:a:webmin:webmin:1.880:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "582E63F5-FB43-41C0-9022-FBBEAE5BAA63"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}