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MitreCVE-2020-10862

HistoryApr 01, 2020 - 5:15 p.m.

CVE-2020-10862

2020-04-0117:15:15

mitre

web.nvd.nist.gov

avast antivirus

avast service

local privilege escalation

rpc

vulnerability

cve-2020-10862

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.5

Confidence

High

EPSS

Percentile

5.1%

JSON

An issue was discovered in Avast Antivirus before 20. The aswTask RPC endpoint for the TaskEx library in the Avast Service (AvastSvc.exe) allows attackers to achieve Local Privilege Escalation (LPE) via RPC.

Affected configurations

Nvd

Node

avastantivirusRange<20.0

AND

microsoftwindowsMatch-

VendorProductVersionCPE
avastantivirus*cpe:2.3:a:avast:antivirus:*:*:*:*:*:*:*:*
microsoftwindows-cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
avast	antivirus	*	cpe:2.3:a:avast:antivirus::::::::
microsoft	windows	-	cpe:2.3:o:microsoft:windows:-:::::::*

References

forum.avast.com/index.php?topic=232420.0

forum.avast.com/index.php?topic=232423.0

github.com/umarfarook882/Avast_Multiple_Vulnerability_Disclosure/blob/master/README.md

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.5

Confidence

High

EPSS

Percentile

5.1%

JSON

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