CVE-2019-14694 Information

Description

A use-after-free flaw in the sandbox container implemented in cmdguard.sys in Comodo Antivirus 12.0.0.6870 can be triggered due to a race condition when handling IRP_MJ_CLEANUP requests in the minifilter for directory change notifications. This allows an attacker to cause a denial of service (BSOD) when an executable is run inside the container.

CVSS Vector

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

http://rce4fun.blogspot.com/2019/08/comodo-antivirus-sandbox-race-condition.html https://github.com/SouhailHammou/Exploits/blob/master/CVE-2019-1469420-20Comodo20AV20Sandbox20Race20Condition20UAF/comodo_av_uaf_poc.c

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

4.7