CVE-2018-18435

KioWare Server version 4.9.6 and older installs by default to "C:\kioware_com" with weak folder permissions granting any user full permission "Everyone: (F)" to the contents of the directory and it's sub-folders. In addition, the program installs a service called "KWSService" which runs as "Localsystem", this will allow any user to escalate privileges to "NT AUTHORITY\SYSTEM" by substituting the service's binary with a malicious one.

CVSS v3 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3 : HIGH

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

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://packetstormsecurity.com/files/151031/KioWare-Server-4.9.6-Privilege-Escalation.html	Exploit Third Party Advisory VDB Entry
https://github.com/active-labs/Advisories/blob/master/2019/ACTIVE-2019-002.md
https://m.kioware.com/news/kioware-press-releases/kioware_server_security_patch_update	Patch Vendor Advisory
https://www.exploit-db.com/exploits/46093/	Exploit Third Party Advisory VDB Entry
https://www.kioware.com/patch.aspx	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:kioware:kioware_server:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2019-03-21 16:00

Updated : 2019-10-03 00:03

NVD link : CVE-2018-18435

Mitre link : CVE-2018-18435

CVE.ORG link : CVE-2018-18435

JSON object : View

Products Affected

kioware

kioware_server

CWE

CWE-732

Incorrect Permission Assignment for Critical Resource

{"id": "CVE-2018-18435", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2019-03-21T16:00:28.373", "references": [{"url": "http://packetstormsecurity.com/files/151031/KioWare-Server-4.9.6-Privilege-Escalation.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "https://github.com/active-labs/Advisories/blob/master/2019/ACTIVE-2019-002.md", "source": "cve@mitre.org"}, {"url": "https://m.kioware.com/news/kioware-press-releases/kioware_server_security_patch_update", "tags": ["Patch", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.exploit-db.com/exploits/46093/", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "https://www.kioware.com/patch.aspx", "tags": ["Patch", "Vendor Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-732"}]}], "descriptions": [{"lang": "en", "value": "KioWare Server version 4.9.6 and older installs by default to \"C:\\kioware_com\" with weak folder permissions granting any user full permission \"Everyone: (F)\" to the contents of the directory and it's sub-folders. In addition, the program installs a service called \"KWSService\" which runs as \"Localsystem\", this will allow any user to escalate privileges to \"NT AUTHORITY\\SYSTEM\" by substituting the service's binary with a malicious one."}, {"lang": "es", "value": "KioWare Server versi\u00f3n 4.9.6 y versiones anteriores instalan de manera predeterminada \"C:\\kioware_com\" con permisos de carpeta d\u00e9biles que otorgan a cualquier usuario permiso completo \"Todos: (F)\" al contenido del directorio y sus subcarpetas. Adem\u00e1s, el programa instala un servicio llamado \"KWSService\" que se ejecuta como \"Localsystem\", lo que permitir\u00e1 a cualquier usuario escalar privilegios a \"NT AUTHORITY\\SYSTEM\" sustituyendo el binario del servicio por uno malicioso."}], "lastModified": "2019-10-03T00:03:26.223", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:kioware:kioware_server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F23219CE-BE21-4B65-9300-A1601ADE47D8", "versionEndIncluding": "4.9.6"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}