CVE-2021-46158 : Security Advisory and Response
Learn about CVE-2021-46158, a critical security issue in Simcenter Femap V2020.2 and V2021.1 allowing attackers to execute code. Find mitigation steps and patching details here.
A vulnerability has been identified in Simcenter Femap V2020.2 and V2021.1 where an attacker could exploit a stack-based buffer overflow vulnerability to execute code in the context of the current process.
Understanding CVE-2021-46158
This CVE affects Simcenter Femap versions V2020.2 and V2021.1, exposing a critical security issue.
What is CVE-2021-46158?
- The vulnerability found in Simcenter Femap allows attackers to trigger a stack-based buffer overflow by manipulating NEU files, potentially leading to code execution.
The Impact of CVE-2021-46158
- Exploiting this vulnerability enables threat actors to execute arbitrary code within the application's context, posing serious security risks.
Technical Details of CVE-2021-46158
Simcenter Femap V2020.2 and V2021.1 are susceptible to this critical vulnerability.
Vulnerability Description
- The vulnerability arises from a stack-based buffer overflow issue during NEU file parsing in Simcenter Femap, creating a pathway for unauthorized code execution.
Affected Systems and Versions
- Simcenter Femap V2020.2 (All versions)
- Simcenter Femap V2021.1 (All versions)
Exploitation Mechanism
- Attackers can exploit the stack-based buffer overflow by manipulating NEU files, allowing them to run malicious code within the application's current process.
Mitigation and Prevention
It is crucial to take immediate action to mitigate the risks associated with CVE-2021-46158.
Immediate Steps to Take
- Update Simcenter Femap to the latest patched version immediately.
- Monitor for any unusual activity or unauthorized code execution on systems.
- Implement restrictions on file inputs and validate data to prevent buffer overflow attacks.
Long-Term Security Practices
- Regularly conduct security assessments and penetration testing to identify and address vulnerabilities.
- Educate users on safe file handling practices and the importance of timely software updates.
Patching and Updates
- Siemens has released patches to address the vulnerability in Simcenter Femap. Ensure all affected systems are updated with the latest security fixes.