CVE Vulnerability

CVE-2019-18894

In Avast Premium Security 19.8.2393, attackers can send a specially crafted request to the local web server run by Avast Antivirus on port 27275 to support Bank Mode functionality. A flaw in the processing of a command allows execution of arbitrary OS commands with the privileges of the currently logged in user. This allows for example attackers who compromised a browser extension to escape from the browser sandbox.

9.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://palant.de/2020/01/13/pwning-avast-secure-browser-for-fun-and-profit/ Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:avast:premium_security:19.8.2393:*:*:*:*:*:*:*
Information

Published : 2020-01-13 05:15

Updated : 2020-01-21 08:30

NVD link : CVE-2019-18894

Mitre link : CVE-2019-18894

Products Affected
No products.
CWE
CWE-78