CVE-2020-5806 Explained : Impact and Mitigation
Learn about CVE-2020-5806 affecting FactoryTalk Linx, allowing attackers to disrupt services through memory allocation manipulation. Find mitigation steps and patching recommendations here.
FactoryTalk Linx is affected by a vulnerability that allows an attacker to pass a controlled memory allocation size to the C++ new operator, leading to a Local Denial of Service attack.
Understanding CVE-2020-5806
This CVE involves a memory allocation vulnerability in FactoryTalk Linx that can be exploited for a denial of service attack.
What is CVE-2020-5806?
An attacker can manipulate memory allocation in FactoryTalk Linx, potentially causing a denial of service by sending a crafted message to a specific address.
The Impact of CVE-2020-5806
The vulnerability allows attackers to disrupt the normal operation of FactoryTalk Linx, potentially leading to service unavailability.
Technical Details of CVE-2020-5806
FactoryTalk Linx vulnerability details and affected systems.
Vulnerability Description
- Attacker-controlled memory allocation in CServerManager::HandleBrowseLoadIconStreamRequest in messaging.dll
Affected Systems and Versions
- Product: Rockwell FactoryTalk Linx
- Versions: All versions of FactoryTalk Linx
Exploitation Mechanism
- Attacker sends a specially crafted message to 127.0.0.1:7153
Mitigation and Prevention
Steps to address and prevent CVE-2020-5806.
Immediate Steps to Take
- Apply vendor patches or updates promptly
- Monitor network traffic for any suspicious activity
- Restrict network access to critical systems
Long-Term Security Practices
- Regularly update and patch software and systems
- Conduct security assessments and audits periodically
- Educate users on recognizing and reporting suspicious activities
Patching and Updates
- Check for security advisories from the vendor
- Apply recommended patches or updates to mitigate the vulnerability