published March 23, 2020
⚠️ A .NET Remoting endpoint is like leaving the door to your digital vault wide open! FactoryTalk Diagnostics software from Rockwell Automation allows untrusted data to sneak in through RNADiagnosticsSrv.exe at TCP/8082. 🔓 Think of this as allowing a delivery driver to drop off packages without checking their contents first — anyone can send whatever they want right into your system. Without proper validation, potentially harmful data can slip through the cracks. This vulnerability could allow attackers to exploit insecure deserialization to send malicious payloads directly to your diagnostics service. Picture this: they could manipulate the service in ways that could lead to unauthorized access or even system instability!
Think of this as allowing a delivery driver to drop off packages without checking their contents first — anyone can send whatever they want right into your system. Without proper validation, potentially harmful data can slip through the cracks. CVE-2020-6967 involves insecure deserialization in the FactoryTalk Diagnostics software, where untrusted data sent to the .NET Remoting endpoint can be executed without appropriate checks. This flaw hinges on the RNADiagnosticsSrv.exe process listening on TCP port 8082.
This vulnerability could allow attackers to exploit insecure deserialization to send malicious payloads directly to your diagnostics service. Picture this: they could manipulate the service in ways that could lead to unauthorized access or even system instability! To secure your systems, it’s crucial to update FactoryTalk Diagnostics to the latest version as soon as possible and ensure that your firewall rules restrict access to TCP/8082 from untrusted networks. Additionally, consider implementing stricter input validation to block untrusted data. You’ve got this! By following these steps, you’ll strengthen your defenses and protect your critical systems. 🛡️