CVE-2020-7475 Code injection in EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix), Unity Pro (all versions), Modicon M340 (all versions prior to V3.20), Modicon M580 (all versions prior to V3.10)
Attackers can inject malicious code into Schneider Electric PLC controllers via vulnerable programming software, potentially compromising industrial control systems.
- 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-2020-7475?
CVE-2020-7475 is a critical code injection vulnerability in EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix), Unity Pro (all versions), Modicon M340 (all versions prior to V3.20), Modicon M580 (all versions prior to V3.10), published on 23 Mar 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'), reflective DLL, vulnerability exists in EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix), Unity Pro (all versions), Modicon M340 (all versions prior to V3.20), Modicon M580 (all versions prior to V3.10), which, if exploited, could allow attackers to transfer malicious code to the controller.
Weakness: CWE-74
Which versions are affected by CVE-2020-7475?
It affects 4 products.
Products include Schneider-Electric Ecostruxure Control Expert, Schneider-Electric Modicon M340 Firmware, Schneider-Electric Modicon M580 Firmware, Schneider-Electric Unity Pro.
How do I fix CVE-2020-7475?
No fix has been published for CVE-2020-7475 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-2020-7475 being exploited?
There is no known exploitation of CVE-2020-7475 in the wild and no public exploit code.
Other vulnerabilities in EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix), Unity Pro (all versions), Modicon M340 (all versions prior to V3.20), Modicon M580 (all versions prior to V3.10)
- CVE-2022-37300 Auth bypass in EcoStruxure Control Expert
- CVE-2020-28212 Auth bypass in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions)
- CVE-2023-27976 Other in EcoStruxure Control Expert
- CVE-2020-28213 Code injection in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions)
- CVE-2020-7560 Memory corruption in EcoStruxure™ Control Expert (all versions) and Unity Pro (former name of EcoStruxure™ Control Expert) (all versions)
Sources
Also known as GHSA-3mwf-xhc6-4rgf.