Advisory Details

March 15th, 2023

Unity Technologies Unity Editor SKP File Parsing Use-After-Free Remote Code Execution Vulnerability

ZDI-23-239
ZDI-CAN-19109

CVE ID
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Unity Technologies
AFFECTED PRODUCTS Unity
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Unity Technologies Unity Editor. 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 SKP files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Unity Technologies has issued an update to correct this vulnerability. More details can be found at:
https://unity.com/security/jan-2023-01
DISCLOSURE TIMELINE
  • 2022-10-13 - Vulnerability reported to vendor
  • 2023-03-15 - Coordinated public release of advisory
CREDIT Michael DePlante (@izobashi) of Trend Micro's Zero Day Initiative
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