CVE-2017-7968 : Security Advisory and Response
Learn about CVE-2017-7968, an issue in Schneider Electric Wonderware InduSoft Web Studio allowing authenticated users to escalate privileges. Find mitigation steps and updates here.
Schneider Electric Wonderware InduSoft Web Studio v8.0 Patch 3 and earlier versions have an issue with default permissions, potentially allowing authenticated users to escalate privileges.
Understanding CVE-2017-7968
What is CVE-2017-7968?
An Incorrect Default Permissions problem exists in Schneider Electric Wonderware InduSoft Web Studio v8.0 Patch 3 and prior versions, where non-administrator users can manipulate files, leading to privilege escalation.
The Impact of CVE-2017-7968
This vulnerability could enable authenticated users to enhance their privileges, posing a security risk to affected systems.
Technical Details of CVE-2017-7968
Vulnerability Description
Schneider Electric Wonderware InduSoft Web Studio v8.0 Patch 3 and earlier versions create files with default permissions that can be altered by non-administrator users.
Affected Systems and Versions
- Product: Schneider Electric Wonderware InduSoft Web Studio
- Versions: Schneider Electric Wonderware InduSoft Web Studio
Exploitation Mechanism
The vulnerability allows authenticated users to modify files created during installation, potentially leading to privilege escalation.
Mitigation and Prevention
Immediate Steps to Take
- Apply the latest patches and updates from Schneider Electric to address the default permissions issue.
- Restrict access to critical system files and directories to authorized personnel only.
Long-Term Security Practices
- Regularly review and update access control policies to prevent unauthorized modifications.
- Conduct security training for users to raise awareness about privilege escalation risks.
Patching and Updates
Ensure timely installation of security patches and updates provided by Schneider Electric to mitigate the vulnerability.