CVE-2024-24946 Memory corruption in P3-550E
An unauthenticated attacker can cause a denial of service in AutomationDirect P3-550E PLCs by sending a specially crafted network packet that triggers a heap-based buffer overflow.
- 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-2024-24946?
CVE-2024-24946 is a high-severity memory corruption vulnerability in AutomationDirect P3-550E, published on 28 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A heap-based buffer overflow vulnerability exists in the Programming Software Connection CurrDir functionality of AutomationDirect P3-550E 1.2.10.9. A specially crafted network packet can lead to denial of service. An attacker can send an unauthenticated packet to trigger these vulnerability.This CVE tracks the heap corruption that occurs at offset `0xb686c` of version 1.2.10.9 of the P3-550E firmware, which occurs when a call to `memset` relies on an attacker-controlled length value and corrupts any trailing heap allocations.
Weakness: CWE-787
Which versions are affected by CVE-2024-24946?
It affects 6 products.
Products include Automationdirect P1-540 Firmware, Automationdirect P1-550 Firmware, Automationdirect P2-550 Firmware, Automationdirect P3-530 Firmware, Automationdirect P3-550 Firmware, Automationdirect P3-550e Firmware.
How do I fix CVE-2024-24946?
No fix has been published for CVE-2024-24946 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-2024-24946 being exploited?
There is no known exploitation of CVE-2024-24946 in the wild and no public exploit code.