Vulnerability Monitor

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CVE-2020-10867

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 bypass intended access restrictions on tasks from an untrusted process, when Self Defense is enabled.

Published

2020-04-01T18:15:15.507

Last Modified

2024-11-21T04:56:15.307

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-668

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	avast	antivirus	< 20.0	Yes
Operating System	microsoft	windows	-	No

References

https://forum.avast.com/index.php?topic=232420.0 Release Notes, Vendor Advisory ([email protected])
https://forum.avast.com/index.php?topic=232423.0 Release Notes, Vendor Advisory ([email protected])
https://github.com/umarfarook882/Avast_Multiple_Vulnerability_Disclosure/blob/master/README.md Exploit, Third Party Advisory ([email protected])
https://forum.avast.com/index.php?topic=232420.0 Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://forum.avast.com/index.php?topic=232423.0 Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/umarfarook882/Avast_Multiple_Vulnerability_Disclosure/blob/master/README.md Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)