CVE-2021-46565 : What You Need to Know
Learn about CVE-2021-46565, a critical vulnerability in Bentley MicroStation CONNECT 10.16.0.80 enabling remote code execution. Take immediate steps to mitigate the high impact on confidentiality, integrity, and availability.
A vulnerability in Bentley MicroStation CONNECT 10.16.0.80 allows remote attackers to execute arbitrary code, requiring user interaction for exploitation.
Understanding CVE-2021-46565
This CVE involves a critical vulnerability in Bentley MicroStation CONNECT, potentially leading to code execution by attackers.
What is CVE-2021-46565?
The vulnerability enables remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. The flaw lies in the parsing of JT files due to improper validation of user-supplied data length.
The Impact of CVE-2021-46565
The vulnerability has a high severity level, impacting confidentiality, integrity, and availability on affected systems. User interaction is necessary through visiting a malicious page or opening a malicious file.
Technical Details of CVE-2021-46565
This section covers in-depth technical details of the CVE.
Vulnerability Description
The vulnerability is classified as a stack-based buffer overflow (CWE-121), allowing attackers to execute code in the context of the target process.
Affected Systems and Versions
- Product: MicroStation CONNECT
- Vendor: Bentley
- Version: 10.16.0.80 (affected)
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Local
- User Interaction: Required
- Privileges Required: None
- Scope: Unchanged
- Availability Impact: High
- Confidentiality Impact: High
- Integrity Impact: High
Mitigation and Prevention
Protective measures to safeguard systems against this vulnerability.
Immediate Steps to Take
- Update Bentley MicroStation CONNECT to a patched version immediately.
- Educate users about the risks of visiting unknown or suspicious websites.
- Implement strict file validation processes to mitigate potential threats.
Long-Term Security Practices
- Conduct regular security training for users to enhance awareness of cyber threats.
- Implement robust network segmentation to contain potential breaches.
Patching and Updates
- Apply security patches provided by Bentley to address the vulnerability effectively.