Advisory Details

August 1st, 2017

Mitsubishi Electric E-Designer BEMBSlave Driver Configuration CommErrIO Stack-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-17-514
ZDI-CAN-3798

CVE ID CVE-2017-9638
CVSS SCORE 9.3, (AV:N/AC:M/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Mitsubishi Electric
AFFECTED PRODUCTS E-Designer
TIPPINGPOINT™ IPS CUSTOMER PROTECTION TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 24897. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Mitsubishi Electric E-Designer. 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 processing of a driver configuration file when initializing the BEMBSlave component. When parsing the property CommErrIO, the process fails to properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute arbitrary code in the context of the Administrator.

VENDOR RESPONSE Mitsubishi Electric has issued an update to correct this vulnerability. More details can be found at:
https://ics-cert.us-cert.gov/advisories/ICSA-17-213-01
DISCLOSURE TIMELINE
  • 2016-05-31 - Vulnerability reported to vendor
  • 2017-08-01 - Coordinated public release of advisory
CREDIT rgod
BACK TO ADVISORIES