CVE-2020-28220 Memory corruption in Modicon M258 Firmware (All versions prior to V5.0.4.11) and SoMachine/SoMachine Motion software (All versions)
A buffer overflow in Modicon M258 firmware allows attackers to execute arbitrary code or cause denial of service via crafted file transfers.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-28220?
CVE-2020-28220 is a medium-severity memory corruption vulnerability in Modicon M258 Firmware (All versions prior to V5.0.4.11) and SoMachine/SoMachine Motion software (All versions), published on 11 Dec 2020. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists in Modicon M258 Firmware (All versions prior to V5.0.4.11) and SoMachine/SoMachine Motion software (All versions), that could cause a buffer overflow when the length of a file transferred to the webserver is not verified.
Weakness: CWE-119
Which versions are affected by CVE-2020-28220?
It affects 3 products.
Products include Schneider-Electric Modicon M258 Firmware, Schneider-Electric Somachine, Schneider-Electric Somachine Motion.
How do I fix CVE-2020-28220?
No fix has been published for CVE-2020-28220 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-28220 being exploited?
There is no known exploitation of CVE-2020-28220 in the wild and no public exploit code.
Sources
Also known as GHSA-xfpf-x83h-3xxj.