CVE-2019-19642: supermicro x8sti-f_bios OS Command Injection

Vulnerability summary

CVE-2019-19642 is a high (CVSS 9.0) OS Command Injection vulnerability in supermicro x8sti-f_bios. EPSS estimates a 19.04% chance of exploitation in the next 30 days, higher than 97.2% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 08-12-2019
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

Description

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.

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')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.