CVE-2020-25159 Real Time Automation EtherNet/IP

Critical 9.8 Published Updated

A stack-based buffer overflow in the EtherNet/IP Adaptor allows attackers to cause denial of service or execute arbitrary code via crafted packets.

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-2020-25159?

CVE-2020-25159 is a critical memory corruption vulnerability in Real Time Automation 499ES EtherNet/IP (ENIP) Adaptor Source Code, published on 24 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

499ES EtherNet/IP (ENIP) Adaptor Source Code is vulnerable to a stack-based buffer overflow, which may allow an attacker to send a specially crafted packet that may result in a denial-of-service condition or code execution.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2020-25159?

It affects 1 product.

Products include Rtautomation 499es Ethernet\/Ip Adaptor Firmware.

How do I fix CVE-2020-25159?

No fix has been published for CVE-2020-25159 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-2020-25159 being exploited?

There is no known exploitation of CVE-2020-25159 in the wild and no public exploit code.

Sources

Also known as GHSA-mxg2-jj7m-q6v8.

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