CVE-2020-27255 : What You Need to Know

FactoryTalk Linx Version 6.11 and prior is affected by a heap overflow vulnerability that could allow remote attackers to leak sensitive information and bypass ASLR.

Understanding CVE-2020-27255

A heap overflow vulnerability in FactoryTalk Linx Version 6.11 and earlier could lead to information disclosure and ASLR bypass.

What is CVE-2020-27255?

This CVE identifies a heap overflow vulnerability in FactoryTalk Linx Version 6.11 and prior, enabling remote unauthenticated attackers to send malicious requests, potentially leaking sensitive data.

The Impact of CVE-2020-27255

The vulnerability could result in the leaking of sensitive information and allow attackers to bypass ASLR, posing a significant risk to affected systems.

Technical Details of CVE-2020-27255

FactoryTalk Linx Version 6.11 and earlier are susceptible to a heap overflow vulnerability.

Vulnerability Description

The vulnerability allows remote, unauthenticated attackers to exploit the heap overflow, potentially leading to the leakage of sensitive information.

Affected Systems and Versions

Product: FactoryTalk Linx
Vendor: n/a
Versions Affected: Version 6.11 and prior

Exploitation Mechanism

Attackers can exploit the vulnerability by sending malicious set attribute requests, triggering the heap overflow and potential information disclosure.

Mitigation and Prevention

Immediate action and long-term security practices are crucial to mitigate the risks associated with CVE-2020-27255.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate weaknesses.
Educate users and IT staff on security best practices to prevent future incidents.

Patching and Updates

Ensure that FactoryTalk Linx is updated to a secure version that addresses the heap overflow vulnerability.