7.5
CWE
284
Advisory Published
CVE Published
CVE Published
Updated

CVE-2019-6520

First published: Tue Mar 05 2019(Updated: )

Moxa IKS and EDS does not properly check authority on server side, which results in a read-only user being able to perform arbitrary configuration changes.

Credit: ics-cert@hq.dhs.gov ics-cert@hq.dhs.gov

Affected SoftwareAffected VersionHow to fix
Moxa Iks-g6824a Firmware<=4.5
Moxa IKS-G6824A
Moxa Eds-405a Firmware<=3.8
Moxa EDS-405A
Moxa Eds-408a Firmware<=3.8
Moxa Eds-408a
Moxa Eds-510a Firmware<=3.8
Moxa Eds-510a
All of
Moxa Iks-g6824a Firmware<=4.5
Moxa IKS-G6824A
All of
Moxa Eds-405a Firmware<=3.8
Moxa EDS-405A
All of
Moxa Eds-408a Firmware<=3.8
Moxa Eds-408a
All of
Moxa Eds-510a Firmware<=3.8
Moxa Eds-510a

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Frequently Asked Questions

  • What is the severity of CVE-2019-6520?

    CVE-2019-6520 is classified as a moderate severity vulnerability due to improper authorization checks.

  • How do I fix CVE-2019-6520?

    To fix CVE-2019-6520, update your Moxa IKS and EDS devices to the latest firmware version beyond 4.5 for IKS and 3.8 for EDS firmware.

  • What devices are affected by CVE-2019-6520?

    CVE-2019-6520 affects Moxa IKS-G6824A firmware versions up to 4.5 and Moxa EDS-405A, EDS-408A, and EDS-510A firmware versions up to 3.8.

  • Can a read-only user exploit CVE-2019-6520?

    Yes, a read-only user can exploit CVE-2019-6520 to make arbitrary configuration changes due to insufficient authorization checks.

  • What can happen if CVE-2019-6520 is exploited?

    Exploitation of CVE-2019-6520 may allow unauthorized users to modify device configurations, potentially leading to operational disruptions.

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