CVE-2017-7928 : Security Advisory and Response
Learn about CVE-2017-7928, an access control vulnerability in Schweitzer Engineering Laboratories SEL-3620 and SEL-3622 Security Gateway versions, allowing unauthorized communication with downstream devices. Find mitigation steps and preventive measures.
Schweitzer Engineering Laboratories (SEL) has encountered an access control vulnerability in SEL-3620 and SEL-3622 Security Gateway versions R202, R203, R203-V1, R203-V2, and R204, R204-V1, allowing unauthorized communication with downstream devices.
Understanding CVE-2017-7928
This CVE involves an improper access control issue in SEL-3620 and SEL-3622 Security Gateway versions.
What is CVE-2017-7928?
The vulnerability in SEL-3620 and SEL-3622 Security Gateway versions allows unauthorized communication with downstream devices due to inadequate access control enforcement during NAT port forwarding setup.
The Impact of CVE-2017-7928
The vulnerability could lead to unauthorized access and potential compromise of downstream devices, posing a security risk to the network infrastructure.
Technical Details of CVE-2017-7928
This section provides detailed technical information about the CVE.
Vulnerability Description
The flaw in SEL-3620 and SEL-3622 Security Gateway versions allows unauthorized communication with downstream devices due to improper access control enforcement during NAT port forwarding setup.
Affected Systems and Versions
- Product: Schweitzer Engineering Laboratories, Inc. SEL-3620 and SEL-3622
- Versions: R202, R203, R203-V1, R203-V2, R204, R204-V1
Exploitation Mechanism
The vulnerability can be exploited by attackers to establish unauthorized communication with downstream devices by bypassing access control mechanisms.
Mitigation and Prevention
Protect your systems from CVE-2017-7928 with the following steps:
Immediate Steps to Take
- Update SEL-3620 and SEL-3622 Security Gateway versions to the latest patched versions.
- Implement proper access control configurations to restrict unauthorized communication.
Long-Term Security Practices
- Regularly monitor and audit access control settings on network devices.
- Conduct security training for personnel to enhance awareness of access control best practices.
Patching and Updates
- Stay informed about security advisories and updates from Schweitzer Engineering Laboratories.
- Apply patches promptly to address known vulnerabilities and enhance system security.