Headline
CVE-2020-12117: NPort 5100A Series Serial Device Servers Vulnerability
Moxa Service in Moxa NPort 5150A firmware version 1.5 and earlier allows attackers to obtain sensitive configuration values via a crafted packet to UDP port 4800. NOTE: Moxa Service is an unauthenticated service that runs upon a first-time installation but can be disabled without ill effect.
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SUMMARY
NPort 5100A Series Serial Device Servers Vulnerability
- Version: V1.0
- Release Date: Apr 29, 2020
- Reference:
- CVE-2020-12117
A vulnerability was identified in Moxa’s NPort 5100A Series Serial Device Server. In response to this, Moxa has developed related solutions to address this vulnerability.
The identified vulnerability types and potential impacts are shown below:
Item
Vulnerability Type
Impact
1
Unauthenticated Information Disclosure
The vulnerability allows an attacker to obtain the serial port configurations of the device without proper authentication.
AFFECTED PRODUCTS AND SOLUTIONS
Affected Products:
The affected products and firmware versions are shown below.
Product Series
Affected Versions
NPort 5100A Series
Firmware Version 1.5 or lower
Solutions:
Moxa has developed appropriate solutions to address the vulnerabilities. The solutions for affected products are shown below.
Product Series
Solutions
NPort 5100A Series
- Please upgrade to the latest firmware here (at least version 1.5 or higher).
- Disable “Moxa Service” under Console Setting.
- If you need to enable “Moxa Service”, please set those devices that can access NPort as whitelisted (for example, by their IP address). Then, enable “Apply additional restrictions” under the Accessible IP List configuration.
Acknowledgment:
We would like to express our appreciation to Maayan Fishelov from SCADAfence for reporting the vulnerability, working with us to help enhance the security of our products, and helping us provide a better service to our customers.
Revision History:
VERSION
DESCRIPTION
RELEASE DATE
1.0
First Release
Apr 29, 2020
Relevant Products
NPort 5100A Series ·
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