TippingPoint Zero Day Initiative

Splunk runshellscript echo.sh Remote Code Execution Vulnerability

ZDI-14-053: April 3rd, 2014


CVSS Score

Affected Vendors


Affected Products

    Splunk Enterprise

Vulnerability Details

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.

Vendor Response

Splunk has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2013-08-09 - Vulnerability reported to vendor
    2014-04-03 - Coordinated public release of advisory


This vulnerability was discovered by:
    CyberCrown Ltd.