Advisory Details

April 6th, 2018

Trend Micro Maximum Security tmnciesc Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-18-268
ZDI-CAN-5460

CVE ID CVE-2018-6234
CVSS SCORE 4.6, AV:L/AC:L/Au:N/C:P/I:P/A:P
AFFECTED VENDORS Trend Micro
AFFECTED PRODUCTS Maximum Security
VULNERABILITY DETAILS


This vulnerability allows local attackers disclose sensitive information on vulnerable installations of Trend Micro Maximum Security. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within processing of IOCTL 0x222814 by the tmnciesc.sys driver. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges to kernel.

ADDITIONAL DETAILS Trend Micro has issued an update to correct this vulnerability. More details can be found at:
https://esupport.trendmicro.com/en-us/home/pages/technical-support/1119591.aspx
DISCLOSURE TIMELINE
  • 2017-12-05 - Vulnerability reported to vendor
  • 2018-04-06 - Coordinated public release of advisory
  • 2018-04-06 - Advisory Updated
CREDIT Anonymous
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