Advisory Details

October 19th, 2020

Microsoft 3D Builder GLB File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-20-1247
ZDI-CAN-11174

CVE ID CVE-2020-1167
CVSS SCORE 7.8, (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS 3D Builder
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft 3D Builder. 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 parsing of GLB files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current user at low integrity.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2020-1167
DISCLOSURE TIMELINE
  • 2020-06-04 - Vulnerability reported to vendor
  • 2020-10-19 - Coordinated public release of advisory
CREDIT rgod
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