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MitreCVE-2017-8308

HistoryApr 27, 2017 - 8:59 p.m.

CVE-2017-8308

2017-04-2720:59:00

CWE-269

mitre

web.nvd.nist.gov

avast antivirus

cve-2017-8308

unprivileged user

bypass

self-defense

security risk

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

8.5

Confidence

High

EPSS

0.009

Percentile

83.1%

JSON

In Avast Antivirus before v17, an unprivileged user (and thus malware or a virus) can mark an arbitrary process as Trusted from the perspective of the Avast product. This bypasses the Self-Defense feature of the product, opening a door to subsequent attack on many of its components.

Affected configurations

Nvd

Node

avastantivirusRange≤12.3.2279

VendorProductVersionCPE
avastantivirus*cpe:2.3:a:avast:antivirus:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
avast	antivirus	*	cpe:2.3:a:avast:antivirus::::::::

References

www.securityfocus.com/bid/98084

www.trustwave.com/Resources/Security-Advisories/Advisories/Multiple-Vulnerabilities-in-Avast-Antivirus/?fid=9201

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

8.5

Confidence

High

EPSS

0.009

Percentile

83.1%

JSON

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