CVE-2020-7593 : Security Advisory and Response
Learn about CVE-2020-7593, a buffer overflow vulnerability in Siemens LOGO! 8 BM (incl. SIPLUS variants) devices, potentially leading to remote code execution. Find mitigation steps and preventive measures here.
A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (V1.81.01 - V1.81.03), LOGO! 8 BM (incl. SIPLUS variants) (V1.82.01), LOGO! 8 BM (incl. SIPLUS variants) (V1.82.02). This CVE involves a buffer overflow vulnerability in the Web Server functionality of the device, potentially leading to remote code execution.
Understanding CVE-2020-7593
This CVE pertains to a buffer overflow vulnerability in Siemens AG's LOGO! 8 BM (incl. SIPLUS variants) products.
What is CVE-2020-7593?
A buffer overflow vulnerability exists in the Web Server functionality of LOGO! 8 BM (incl. SIPLUS variants) devices, allowing remote unauthenticated attackers to exploit this issue.
The Impact of CVE-2020-7593
The vulnerability could result in memory corruption and potentially enable remote code execution by sending a specially crafted HTTP request.
Technical Details of CVE-2020-7593
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability involves a buffer overflow in the Web Server functionality of LOGO! 8 BM (incl. SIPLUS variants) devices.
Affected Systems and Versions
- Product: LOGO! 8 BM (incl. SIPLUS variants)
- Vendor: Siemens AG
- Versions Affected: V1.81.01 - V1.81.03, V1.82.01, V1.82.02
Exploitation Mechanism
- Attackers can exploit the vulnerability by sending a specially crafted HTTP request to the device, causing memory corruption.
Mitigation and Prevention
Protecting systems from CVE-2020-7593 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by Siemens AG promptly.
- Implement network segmentation to limit exposure.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update and patch all software and firmware.
- Conduct security assessments and penetration testing.
- Educate users on safe browsing habits and security best practices.
Patching and Updates
- Stay informed about security updates from Siemens AG.
- Apply patches as soon as they are released to mitigate the vulnerability.