Advisory Details

November 24th, 2013

HP Virtual User Generator EmulationAdmin Service saveCodeRuleFile Remote Code Execution Vulnerability

ZDI-13-260
ZDI-CAN-1850

CVE ID CVE-2013-4838
CVSS SCORE 10.0, AV:N/AC:L/Au:N/C:C/I:C/A:C
AFFECTED VENDORS Hewlett-Packard
AFFECTED PRODUCTS Virtual User Generator
VULNERABILITY DETAILS


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of HP Virtual User Generator. Authentication is not required to exploit this vulnerability.

The specific flaw exists in the handling of requests to the EmulationAdmin web service. This service exposes the saveCodeRuleFile method which contains a directory traversal flaw that allows attackers to create files at arbitrary locations with attacker controlled data. This can be leveraged by an attacker to gain remote code execution under the context of SYSTEM.
ADDITIONAL DETAILS Hewlett-Packard has issued an update to correct this vulnerability. More details can be found at:
https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay/?docId=emr_na-c03969437
DISCLOSURE TIMELINE
  • 2013-04-26 - Vulnerability reported to vendor
  • 2013-11-24 - Coordinated public release of advisory
CREDIT Andrea Micalizzi aka rgod
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