CVE-2023-43504 Memory corruption in COMOS
An attacker can execute arbitrary code or cause denial of service via a buffer overflow in the Ptmcast executable of Siemens COMOS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-43504?
CVE-2023-43504 is a critical memory corruption vulnerability in Siemens COMOS, published on 14 Nov 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability has been identified in COMOS (All versions < V10.4.4). Ptmcast executable used for testing cache validation service in affected application is vulnerable to Structured Exception Handler (SEH) based buffer overflow. This could allow an attacker to execute arbitrary code on the target system or cause denial of service condition.
Weakness: CWE-120
Which versions are affected by CVE-2023-43504?
It affects 1 product.
Products include Siemens Comos.
How do I fix CVE-2023-43504?
No fix has been published for CVE-2023-43504 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-2023-43504 being exploited?
There is no known exploitation of CVE-2023-43504 in the wild and no public exploit code.
Other vulnerabilities in Siemens COMOS
Sources
Also known as GHSA-339q-f866-3fx6.