Splunk runshellscript echo.sh Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Splunk. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the advanced search functionality. Using a multi-staged attack, it is possible to execute arbitrary commands on the underlying operating system by sending a malformed string to the “runshellscript echo.sh” script. This vulnerability allows an attacker to execute code under the context of the process.