A vulnerability was found in Supermicro X8STi-F 2.06. It has been declared as critical. Affected by this vulnerability is an unknown function of the file /rpc/setvmdrive.asp. The manipulation as part of a POST Request leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

On SuperMicro X8STi-F motherboards with IPMI firmware 2.06 and BIOS 02.68, the Virtual Media feature allows OS Command Injection by authenticated attackers who can send HTTP requests to the IPMI IP address. This requires a POST to /rpc/setvmdrive.asp with shell metacharacters in ShareHost or ShareName. The attacker can achieve a persistent backdoor.

The weakness was disclosed 12/08/2019. This vulnerability is known as CVE-2019-19642 since 12/08/2019. The exploitation appears to be easy. The attack can be launched remotely. The successful exploitation requires a single authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

By approaching the search of inurl:rpc/setvmdrive.asp it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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• Supermicro

Name

• X8STi-F

Version

• 2.06

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CPE 2.2info

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