CVE-2020-27265 Memory corruption in PTC Kepware KEPServerEX; ThingWorx Industrial Connectivity; OPC-Aggregator; Rockwell Automation KEPServer Enterprise; GE Digital Industrial Gateway Server; Software Toolbox TOP Server

Critical 9.8 Published Updated

Attackers can execute arbitrary code or crash the server by sending a crafted OPC UA message to vulnerable industrial connectivity products.

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-2020-27265?

CVE-2020-27265 is a critical memory corruption vulnerability in PTC Kepware KEPServerEX; ThingWorx Industrial Connectivity; OPC-Aggregator; Rockwell Automation KEPServer Enterprise; GE Digital Industrial Gateway Server; Software Toolbox TOP Server, published on 13 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

KEPServerEX: v6.0 to v6.9, ThingWorx Kepware Server: v6.8 and v6.9, ThingWorx Industrial Connectivity: All versions, OPC-Aggregator: All versions, Rockwell Automation KEPServer Enterprise, GE Digital Industrial Gateway Server: v7.68.804 and v7.66, Software Toolbox TOP Server: All 6.x versions are vulnerable to a stack-based buffer overflow. Opening a specifically crafted OPC UA message could allow an attacker to crash the server and remotely execute code.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2020-27265?

It affects 7 products.

Products include Ge Industrial Gateway Server, Ptc Kepware Kepserverex, Ptc Opc-Aggregator, Ptc Thingworx Industrial Connectivity, Ptc Thingworx Kepware Server, Rockwellautomation Kepserver Enterprise and 1 more.

How do I fix CVE-2020-27265?

No fix has been published for CVE-2020-27265 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-2020-27265 being exploited?

There is no known exploitation of CVE-2020-27265 in the wild and no public exploit code.

Sources

Also known as GHSA-355x-g6q7-4c7g.

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