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CVE-2019-18894

Published: Jan 13, 2020Updated: Nov 21, 2024 Sources: CVE List NVDCWE-78
NVD MITRE
7.8CVSSHIGH
EPSS Score
1.8%
Top 24.7%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
No Fix Available

Description

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.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-78

Affected Products

premium securityavast
On-prem
Security Products / endpoint-av-edr
n/an/a
avastcommercialCZSecurity Productsaka avast antivirus, avast free antivirus

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

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MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://palant.de/2020/01/13/pwning-avast-secure-browser-for-fun-and-profit/
palant.de

Timeline

Published
Jan 13, 2020
Last Updated
Nov 21, 2024

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