CVE-2020-7523
First published: Mon Aug 31 2020(Updated: )
Improper Privilege Management vulnerability exists in Schneider Electric Modbus Serial Driver (see security notification for versions) which could cause local privilege escalation when the Modbus Serial Driver service is invoked. The driver does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
Credit: cybersecurity@se.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Schneider Electric Modbus Driver Suite | <14.15.0.0 | |
| schneider-electric Modbus Driver suite | <2.20_ie_30 | |
| schneider-electric Modbus Driver suite | <3.20_ie_30 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2020-7523?
CVE-2020-7523 has a high severity rating due to the potential for local privilege escalation.
How do I fix CVE-2020-7523?
To mitigate CVE-2020-7523, update the Schneider Electric Modbus Serial Driver to a version that is not affected.
Which versions of Schneider Electric software are affected by CVE-2020-7523?
CVE-2020-7523 affects versions of Schneider Electric Modbus Driver Suite up to but not including 14.15.0.0.
Can CVE-2020-7523 be exploited remotely?
CVE-2020-7523 is primarily a local privilege escalation vulnerability, thus it requires local access to exploit.
Is there a patch available for CVE-2020-7523?
Yes, a patch for CVE-2020-7523 is available through updates from Schneider Electric.
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