CVE-2017-8307

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In Avast Antivirus before v17, using the LPC interface API exposed by the AvastSVC.exe Windows service, it is possible to launch predefined binaries, or replace or delete arbitrary files. This vulnerability is exploitable by any unprivileged user when Avast Self-Defense is disabled. It is also exploitable in conjunction with CVE-2017-8308 when Avast Self-Defense is enabled. The vulnerability allows for Denial of Service attacks and hiding traces of a possible attack.

En Avast Antivirus versiones anteriores a v17, utilizando el API de interfaz LPC expuesto por el servicio AvastSVC.exe de Windows, es posible iniciar binarios predefinidos o reemplazar o eliminar archivos arbitrarios. Esta vulnerabilidad es explotable por cualquier usuario no privilegiado cuando Avast Self Defense está deshabilitada. También puede explotarse junto con CVE-2017-8308 cuando Avast Self Defense está habilitada. La vulnerabilidad permite ataques de denegación de servicio y ocultar rastros de un posible ataque.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-04-27 CVE Reserved
2017-04-27 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (2)

URL	Tag	Source
http://www.securityfocus.com/bid/98086	Third Party Advisory

URL	Date	SRC
https://www.trustwave.com/Resources/Security-Advisories/Advisories/Multiple-Vulnerabilities-in-Avast-Antivirus/?fid=9201	2024-08-05

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Avast Search vendor "Avast"		Antivirus Search vendor "Avast" for product "Antivirus"				<= 12.3.2279 Search vendor "Avast" for product "Antivirus" and version " <= 12.3.2279"		-		Affected