CVE-2021-28911 Explained : Impact and Mitigation
Learn about CVE-2021-28911, a vulnerability in BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1, allowing unauthenticated attackers access to sensitive data and the potential for SSH root access.
BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allows unauthenticated attackers to access sensitive data in the /tmp path, such as device serial numbers. This can lead to a self-calculated loginId in a brute force attack against the BMX interface, enabling attackers to gain SSH root access.
Understanding CVE-2021-28911
This section will provide insight into the critical aspects of CVE-2021-28911.
What is CVE-2021-28911?
CVE-2021-28911 pertains to BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1, where unauthenticated attackers can exploit a vulnerability to access sensitive data and potentially launch attacks to gain elevated access.
The Impact of CVE-2021-28911
The impact of this vulnerability is significant as it allows attackers to extract sensitive information and potentially compromise security measures by escalating privileges within the system.
Technical Details of CVE-2021-28911
In this section, we delve into the technical specifics of CVE-2021-28911.
Vulnerability Description
The vulnerability in BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 enables unauthorized access to the /tmp directory, posing a risk of exposing critical device information.
Affected Systems and Versions
The affected version is eibPort V3 prior to version 3.9.1. Users with this version are at risk of exploitation by malicious actors.
Exploitation Mechanism
Attackers can exploit this vulnerability by accessing the /tmp path, extracting sensitive data, and leveraging it to launch further attacks, including attempts to gain SSH root access.
Mitigation and Prevention
This section provides guidance on mitigating the risks associated with CVE-2021-28911.
Immediate Steps to Take
Immediately update the eibPort V3 to version 3.9.1 or above to patch the vulnerability and prevent unauthorized access to sensitive data.
Long-Term Security Practices
Implementing robust security measures, such as access controls and monitoring, can enhance the overall security posture and prevent similar exploits in the future.
Patching and Updates
Regularly monitor for security updates from BAB TECHNOLOGIE GmbH and apply patches promptly to address any new vulnerabilities.