CVE-2019-19642 : Vulnerability Insights and Analysis

SuperMicro X8STi-F motherboards with specific firmware and BIOS versions are vulnerable to OS Command Injection through the Virtual Media feature.

Understanding CVE-2019-19642

This CVE involves a security vulnerability that allows authenticated attackers to execute OS Command Injection on affected SuperMicro X8STi-F motherboards.

What is CVE-2019-19642?

Authenticated attackers with access to SuperMicro X8STi-F motherboards can exploit the Virtual Media feature by sending crafted HTTP requests to the IPMI IP address.
The attack involves making a POST request to a specific endpoint with shell metacharacters in certain parameters, leading to OS Command Injection.
Successful exploitation enables the attacker to establish a persistent backdoor on the system.

The Impact of CVE-2019-19642

Attackers can gain unauthorized access and control over the affected systems, potentially leading to data theft, system manipulation, or further compromise.

Technical Details of CVE-2019-19642

This section provides detailed technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows authenticated attackers to perform OS Command Injection by manipulating HTTP requests to the IPMI IP address.

Affected Systems and Versions

SuperMicro X8STi-F motherboards with IPMI firmware version 2.06 and BIOS version 02.68 are vulnerable.

Exploitation Mechanism

Attackers exploit the Virtual Media feature by sending specially crafted HTTP requests with shell metacharacters to the IPMI IP address.

Mitigation and Prevention

Protecting systems from CVE-2019-19642 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update IPMI firmware and BIOS to patched versions that address the vulnerability.
Restrict access to IPMI interfaces and ensure strong authentication mechanisms.

Long-Term Security Practices

Regularly monitor and audit IPMI activity for any suspicious behavior.
Implement network segmentation to isolate critical systems from potentially compromised devices.

Patching and Updates

Apply security patches provided by SuperMicro to mitigate the vulnerability and enhance system security.