PT-2020-12381 · Avast · Avast Antivirus

Umar Farook · Published 2020-04-01 · Updated 2021-07-21 · CVE-2020-10862

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Avast Antivirus versions prior to 20

Description An issue in Avast Antivirus allows attackers to achieve Local Privilege Escalation via the aswTask RPC endpoint for the TaskEx library in the Avast Service. The endpoint "aswTask" is vulnerable, enabling attackers to exploit it for LPE.

Recommendations For versions prior to 20, update to version 20 or later to resolve the issue. As a temporary workaround, consider restricting access to the aswTask RPC endpoint to minimize the risk of exploitation.

Exploit

Fix

Related Identifiers

CVE-2020-10862

Affected Products

Avast Antivirus

References · 5

• 🔥 https://github.com/umarfarook882/Avast_Multiple_Vulnerability_Disclosure/blob/master/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-10862 · Security Note
• https://forum.avast.com/index.php?topic=232420.0 · Vendor Advisory
• https://forum.avast.com/index.php?topic=232423.0 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-10862 · Vendor Advisory