CVE-2020-7487 Code injection in EcoStruxure Machine Expert (all versions)SoMachine, SoMachine Motion (all versions)Modicon M218 Logic Controller (all versions)Modicon M241 Logic Controller (all versions)Modicon M251 Logic Controller (all versions)Modicon M258 Logic Controller (all versions)
Attackers can execute malicious code on Schneider Modicon PLCs due to insufficient data authenticity verification.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-7487?
CVE-2020-7487 is a critical code injection vulnerability in EcoStruxure Machine Expert (all versions)SoMachine, SoMachine Motion (all versions)Modicon M218 Logic Controller (all versions)Modicon M241 Logic Controller (all versions)Modicon M251 Logic Controller (all versions)Modicon M258 Logic Controller (all versions), published on 22 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A CWE-345: Insufficient Verification of Data Authenticity vulnerability exists which could allow the attacker to execute malicious code on the Modicon M218, M241, M251, and M258 controllers.
Weakness: CWE-345
Which versions are affected by CVE-2020-7487?
It affects 7 products.
Products include Schneider-Electric Ecostruxure Machine Expert, Schneider-Electric Modicon M218 Firmware, Schneider-Electric Modicon M241 Firmware, Schneider-Electric Modicon M251 Firmware, Schneider-Electric Modicon M258 Firmware, Schneider-Electric Somachine and 1 more.
How do I fix CVE-2020-7487?
No fix has been published for CVE-2020-7487 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2020-7487 being exploited?
There is no known exploitation of CVE-2020-7487 in the wild and no public exploit code.
Other vulnerabilities in EcoStruxure Machine Expert (all versions)SoMachine, SoMachine Motion (all versions)Modicon M218 Logic Controller (all versions)Modicon M241 Logic Controller (all versions)Modicon M251 Logic Controller (all versions)Modicon M258 Logic Controller (all versions)
- CVE-2020-7489 Code injection in SoMachine Basic (all versions)EcoStruxure Machine Expert – Basic (all versions)Modicon M100 Logic Controller (all versions)Modicon M200 Logic Controller (all versions)Modicon M221 Logic Controller (all versions)
- CVE-2021-22704 Path traversal in Harmony/HMI Products Configured by Vijeo Designer (all versions prior to V6.2 SP11 ), Vijeo Designer Basic (all versions prior to V1.2), or EcoStruxure Machine Expert (all versions prior to V2.0)
- CVE-2021-22705 Memory corruption in Harmony HMI Products Configured by Vijeo Designer (all versions prior to V6.2 SP11 ) or EcoStruxure Machine Expert (all versions prior to V2.0)
- CVE-2020-7488 Information disclosure in EcoStruxure Machine Expert (all versions)SoMachine, SoMachine Motion (all versions)Modicon M218 Logic Controller (all versions)Modicon M241 Logic Controller (all versions)Modicon M251 Logic Controller (all versions)Modicon M258 Logic Controller (all versions)
Sources
Also known as GHSA-74wf-cr9v-5294.