CVE-2021-26571 Explained : Impact and Mitigation
Learn about CVE-2021-26571 affecting HPE Apollo 70 System firmware. Discover impact, affected versions, and mitigation strategies for this buffer overflow vulnerability.
The Baseboard Management Controller (BMC) firmware in HPE Apollo 70 System prior to version 3.0.14.0 has a local buffer overflow in libifc.so webgetactivexcfg function.
Understanding CVE-2021-26571
This CVE affects the HPE Apollo 70 System due to a buffer overflow vulnerability in the BMC firmware.
What is CVE-2021-26571?
The vulnerability lies in the libifc.so webgetactivexcfg function of the BMC firmware in HPE Apollo 70 System versions prior to 3.0.14.0.
The Impact of CVE-2021-26571
This vulnerability could allow an attacker to locally overflow a buffer, potentially leading to arbitrary code execution or denial of service.
Technical Details of CVE-2021-26571
The following technical details are associated with CVE-2021-26571:
Vulnerability Description
The buffer overflow vulnerability in the libifc.so webgetactivexcfg function of the BMC firmware in HPE Apollo 70 System versions before 3.0.14.0.
Affected Systems and Versions
- Product: HPE Apollo 70 System
- Version: Prior to Version 3.0.14.0
Exploitation Mechanism
The vulnerability can be exploited locally by manipulating the buffer overflow in the specified function.
Mitigation and Prevention
To address CVE-2021-26571, consider the following mitigation strategies:
Immediate Steps to Take
- Update the BMC firmware to version 3.0.14.0 or newer.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update all system firmware to patch known vulnerabilities.
- Implement network segmentation to contain potential attacks.
Patching and Updates
Refer to the provided HPE advisory for detailed patching instructions.