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)
Attackers can inject malicious code into PLC controllers via DLL substitution in Schneider Electric programming software.
- 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-2020-7489?
CVE-2020-7489 is a critical code injection vulnerability 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), 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-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability exists on EcoStruxure Machine Expert – Basic or SoMachine Basic programming software (versions in security notification). The result of this vulnerability, DLL substitution, could allow the transference of malicious code to the controller.
Weakness: CWE-74
Which versions are affected by CVE-2020-7489?
It affects 5 products.
Products include Schneider-Electric Ecostruxure Machine Expert, Schneider-Electric Modicon M100 Firmware, Schneider-Electric Modicon M200 Firmware, Schneider-Electric Modicon M221 Firmware, Schneider-Electric Somachine Basic.
How do I fix CVE-2020-7489?
No fix has been published for CVE-2020-7489 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-2020-7489 being exploited?
There is no known exploitation of CVE-2020-7489 in the wild and no public exploit code.
Other vulnerabilities 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-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)
- 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-9jpc-mpc7-cwp7.