Advisory Details

March 22nd, 2016

IBM Informix nsrexecd Service Privilege Escalation Vulnerability

ZDI-16-209
ZDI-CAN-3458

CVE ID CVE-2016-0226
CVSS SCORE 6.8, (AV:L/AC:L/Au:S/C:C/I:C/A:C)
AFFECTED VENDORS IBM
AFFECTED PRODUCTS Informix
VULNERABILITY DETAILS


This vulnerability allows local users to execute arbitrary code on vulnerable installations of IBM Informix. 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 configuration of the nsrexecd service. Weak access control allows all authenticated users to modify the binary for this service and thus execute code in the context of SYSTEM.

VENDOR RESPONSE IBM has issued an update to correct this vulnerability. More details can be found at:
http://www-01.ibm.com/support/docview.wss?rs=630&uid=swg21978598
DISCLOSURE TIMELINE
  • 2015-12-16 - Vulnerability reported to vendor
  • 2016-03-22 - Coordinated public release of advisory
CREDIT Steven Seeley of Source Incite
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