CVE-2018-14828

Advantech WebAccess Node Product Installation File Access Control Modification Privilege Escalation Vulnerability

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Advantech WebAccess 8.3.1 and earlier has an improper privilege management vulnerability, which may allow an attacker to access those files and perform actions at a system administrator level.

Advantech WebAccess 8.3.1 y anteriores tiene una vulnerabilidad de gestión incorrecta de privilegios, lo que podría permitir que un atacante acceda a dichos archivos y realice acciones a nivel de administrador del sistema.

This vulnerability allows local attackers to escalate privileges on vulnerable installations of Advantech WebAccess Node. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the access control that is set and modified during the installation of the product. The product installation weakens access control restrictions of pre-existing system files and sets weak access control restrictions on new files. An attacker can leverage this vulnerability to escalate privileges to the level of an administrator.

*Credits: Fritz Sands of Trend Micro Zero Day Initiative

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-08-01 CVE Reserved
2018-10-23 CVE Published
2023-11-08 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-269: Improper Privilege Management

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/105728	Third Party Advisory
http://www.securitytracker.com/id/1041939	Third Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-18-296-01%2C	X_refsource_misc

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Advantech Search vendor "Advantech"		Webaccess Search vendor "Advantech" for product "Webaccess"				<= 8.3.1 Search vendor "Advantech" for product "Webaccess" and version " <= 8.3.1"		-		Affected