(0Day) INVT Electric VT-Designer File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

November 26th, 2018
ZDI-18-1360 ZDI-CAN-6414

CVE ID

CVE-2018-18983

CVSS Score

6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected Vendors

INVT

Affected Products

VT-Designer

Vulnerability Details


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of INVT VT-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 the processing of pm3 files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

Additional Details


This vulnerability is being disclosed publicly without a patch in accordance with the ZDI 120 day deadline.

-- Mitigation:
Given the nature of the vulnerability the only salient mitigation strategy is to restrict interaction with the application to trusted files.


Disclosure Timeline

  • 2018-07-25 - Vulnerability reported to vendor
  • 2018-11-26 - Coordinated public release of advisory
  • 2018-11-29 - Advisory Updated

Credit

Ariele Caltabiano (kimiya)

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