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[email protected]CVE-2019-20000

HistoryDec 26, 2019 - 5:15 a.m.

CVE-2019-20000

2019-12-2605:15:10

CWE-367

[email protected]

web.nvd.nist.gov

malware scan

bullguard premium protection

toctou issue

symbolic link attack

privileged files

deletion

cve-2019-20000

nvd

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

5.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

42.2%

JSON

The malware scan function in BullGuard Premium Protection 20.0.371.8 has a TOCTOU issue that enables a symbolic link attack, allowing privileged files to be deleted.

Affected configurations

NVD

Node

bullguardpremium_protectionMatch20.0.371.8

CPENameOperatorVersion
bullguard:premium_protectionbullguard premium protectioneq20.0.371.8

CPE	Name	Operator	Version
bullguard:premium_protection	bullguard premium protection	eq	20.0.371.8

References

github.com/NtRaiseHardError/Antimalware-Research/blob/master/BullGuard/Privileged%20File%20Delete/v20.0.371.8/README.md

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

5.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

42.2%

JSON

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