CVE-2021-25169 : Exploit Details and Defense Strategies

A buffer overflow vulnerability was found in the Baseboard Management Controller (BMC) firmware of the HPE Apollo 70 System prior to version 3.0.14.0. This vulnerability exists in the libifc.so websetservicecfg function, posing a risk to the affected systems.

Understanding CVE-2021-25169

This section provides insights into the vulnerability's nature and its impact.

What is CVE-2021-25169?

The Baseboard Management Controller (BMC) firmware in HPE Apollo 70 System before version 3.0.14.0 suffers from a local buffer overflow in the libifc.so websetservicecfg function.

The Impact of CVE-2021-25169

The vulnerability allows local attackers to trigger a buffer overflow, potentially leading to arbitrary code execution or a denial of service (DoS) condition on the vulnerable system.

Technical Details of CVE-2021-25169

This section delves into the specific technical aspects of the vulnerability.

Vulnerability Description

The flaw in the libifc.so websetservicecfg function could be exploited by local attackers to execute arbitrary code or initiate a DoS attack.

Affected Systems and Versions

HPE Apollo 70 System versions prior to 3.0.14.0 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this buffer overflow vulnerability by sending specially crafted requests to the affected system, potentially gaining unauthorized access or disrupting system availability.

Mitigation and Prevention

Here, we discuss the steps to mitigate the risks associated with CVE-2021-25169.

Immediate Steps to Take

Apply the security patch released by HPE to fix the buffer overflow vulnerability in the affected BMC firmware.
Limit network exposure for all BMC interfaces.

Long-Term Security Practices

Regularly update and apply patches to all system firmware components.
Implement strong access controls and monitor system logs for any unusual activities.

Patching and Updates

Ensure timely installation of firmware updates and security patches provided by HPE to protect the system from known vulnerabilities.