CVE-2023-3943 Multiple buffer overflow in ZkTeco-based OEM devices
Attackers can execute arbitrary code on ZkTeco-based OEM devices via stack-based buffer overflow due to missing protection mechanisms.
- 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-2023-3943?
CVE-2023-3943 is a critical memory corruption vulnerability in ZkTeco-based OEM devices with firmware ZAM170-NF-1.8.25-7354-Ver1.0.0, published on 21 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Stack-based Buffer Overflow vulnerability in ZkTeco-based OEM devices allows, in some cases, the execution of arbitrary code. Due to the lack of protection mechanisms such as stack canaries and PIE, it is possible to successfully execute code even under restrictive conditions.
This issue affects ZkTeco-based OEM devices (ZkTeco ProFace X, Smartec ST-FR043, Smartec ST-FR041ME and possibly others)
with firmware ZAM170-NF-1.8.25-7354-Ver1.0.0 and possibly others.
Weakness: CWE-121
Which versions are affected by CVE-2023-3943?
How do I fix CVE-2023-3943?
No fix has been published for CVE-2023-3943 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-2023-3943 being exploited?
There is no known exploitation of CVE-2023-3943 in the wild and no public exploit code.
Sources
Also known as GHSA-4h6j-2wpq-2xv2.