ID

VAR-201805-1126

CVE

CVE-2018-8841

TITLE

plural Advantech WebAccess Vulnerabilities related to authorization, authority, and access control in products

DESCRIPTION

In Advantech WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versions V.2.0.15 and prior, WebAccess Scada Node versions prior to 8.3.1, and WebAccess/NMS 2.0.3 and prior, an improper privilege management vulnerability may allow an authenticated user to modify files when read access should only be given to the user. plural Advantech WebAccess The product contains vulnerabilities related to authorization, permissions, and access control.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. This vulnerability allows local attackers to escalate privilege 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 execute arbitrary code under the context of Administrator, the IUSR account, or SYSTEM. Advantech WebAccess and others are products of Advantech. Advantech WebAccess is a browser-based HMI/SCADA software. The software supports dynamic graphical display and real-time data control, and provides the ability to remotely control and manage automation equipment. WebAccess Dashboard is one of the dashboard components; WebAccess Scada Node is one of the monitoring node components. WebAccess/NMS is a suite of web browsers for the Network Management System (NMS). A security vulnerability exists in several Advantech products that stems from a program's failure to properly manage permissions. An attacker could use this vulnerability to modify a file. Advantech WebAccess is prone to the following security vulnerabilities: 1. Multiple SQL-injection vulnerabilities 2. An information-disclosure vulnerability 3. A file-upload vulnerability 4. Multiple directory-traversal vulnerabilities 5. Multiple stack-based buffer-overflow vulnerabilities 6. A heap-based buffer-overflow vulnerability 7. Multiple arbitrary code-execution vulnerabilities 8. A denial-of-service vulnerability 9. A security-bypass vulnerability 10. A privilege-escalation vulnerability An attacker can exploit these issues to execute arbitrary code in the context of the application, or modify data, or exploit latent vulnerabilities in the underlying database, delete arbitrary files, gain elevated privileges, perform certain unauthorized actions, upload arbitrary files to the affected application gain unauthorized access and obtain sensitive information. Failed attacks will cause denial of service conditions. Advantech WebAccess etc

IOT TAXONOMY

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

local

TYPE

permissions and access control issues

CONFIGURATIONS

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Fritz Sands of the Zero Day Initiative

SOURCES

LAST UPDATE DATE

2024-08-14T13:45:48.461000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE