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MitreCVE-2019-14694

HistoryAug 28, 2019 - 8:15 p.m.

CVE-2019-14694

2019-08-2820:15:10

CWE-362

CWE-416

mitre

web.nvd.nist.gov

cve-2019-14694

use-after-free

sandbox container

cmdguard.sys

comodo antivirus

denial of service

bsod

CVSS2

4.7

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:N/I:N/A:C

CVSS3

4.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

4.8

Confidence

High

EPSS

Percentile

12.8%

JSON

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.

Affected configurations

Nvd

Node

comodoantivirusMatch12.0.0.6870

VendorProductVersionCPE
comodoantivirus12.0.0.6870cpe:2.3:a:comodo:antivirus:12.0.0.6870:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
comodo	antivirus	12.0.0.6870	cpe:2.3:a:comodo:antivirus:12.0.0.6870:::::::*

References

rce4fun.blogspot.com/2019/08/comodo-antivirus-sandbox-race-condition.html

github.com/SouhailHammou/Exploits/blob/master/CVE-2019-14694%20-%20Comodo%20AV%20Sandbox%20Race%20Condition%20UAF/comodo_av_uaf_poc.c

CVSS2

4.7

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:N/I:N/A:C

CVSS3

4.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

4.8

Confidence

High

EPSS

Percentile

12.8%

JSON

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