CVE-2020-13552 : Vulnerability Insights and Analysis
Learn about CVE-2020-13552, a high-severity local privilege escalation vulnerability in Advantech WebAccess/SCADA 9.0.1. Understand the impact, affected systems, exploitation mechanism, and mitigation steps.
An exploitable local privilege elevation vulnerability exists in the file system permissions of Advantech WebAccess/SCADA 9.0.1 installation. In privilege escalation via multiple service executables in the installation folder of WebAccess, an attacker can either replace binary or loaded modules to execute code with NT SYSTEM privilege.
Understanding CVE-2020-13552
This CVE involves a local privilege escalation vulnerability in Advantech WebAccess/SCADA 9.0.1.
What is CVE-2020-13552?
The vulnerability allows an attacker to elevate privileges locally on the system by exploiting file system permissions in the WebAccess installation.
The Impact of CVE-2020-13552
The impact of this vulnerability is rated as high, with a CVSS base score of 8.8. It can lead to unauthorized code execution with NT SYSTEM privileges.
Technical Details of CVE-2020-13552
This section provides more technical insights into the CVE.
Vulnerability Description
The vulnerability arises from incorrect default permissions in the file system of Advantech WebAccess/SCADA 9.0.1, enabling privilege escalation.
Affected Systems and Versions
- Product: Advantech
- Version: Advantech WebAccess/SCADA 9.0.1
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Local
- Privileges Required: Low
- User Interaction: None
- Scope: Changed
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Mitigation and Prevention
Protecting systems from this vulnerability is crucial.
Immediate Steps to Take
- Apply vendor-supplied patches promptly.
- Restrict access to vulnerable systems.
- Monitor for any unauthorized system changes.
Long-Term Security Practices
- Regularly update and patch software and systems.
- Implement the principle of least privilege to limit access.
- Conduct security training for personnel to recognize and respond to potential threats.
Patching and Updates
Ensure that all systems running Advantech WebAccess/SCADA 9.0.1 are updated with the latest patches to mitigate the vulnerability.