PT-2019-13788 · Comodo · Comodo Antivirus

Souhail Hammou · Published 2019-08-28 · Updated 2021-07-21 · CVE-2019-14694

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Comodo Antivirus version 12.0.0.6870

Description A use-after-free flaw in the sandbox container implemented in cmdguard.sys 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.

Recommendations For Comodo Antivirus version 12.0.0.6870, consider disabling the sandbox container feature until a patch is available to prevent potential denial of service attacks.

Exploit

Fix

Race Condition

Use After Free

Weakness Enumeration

CWE-362

CWE-416

Related Identifiers

CVE-2019-14694

Affected Products

Comodo Antivirus

References · 4

• 🔥 https://github.com/SouhailHammou/Exploits/blob/master/CVE-2019-14694%20-%20Comodo%20AV%20Sandbox%20Race%20Condition%20UAF/comodo_av_uaf_poc.c · Exploit
• 🔥 http://rce4fun.blogspot.com/2019/08/comodo-antivirus-sandbox-race-condition.html · Exploit
• https://osv.dev/vulnerability/CVE-2019-14694 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-14694 · Security Note