ZDI-CAN-23731: ZDI-24-1005: (0Day) Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability
First published: Mon Jul 29 2024(Updated: )
This vulnerability allows local attackers to escalate privileges on affected installations of Avast Free Antivirus. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to delete a folder. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Avast Antivirus |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-CAN-23731?
ZDI-CAN-23731 is classified as a privilege escalation vulnerability.
How do I fix ZDI-CAN-23731?
To fix ZDI-CAN-23731, ensure that you update your Avast Free Antivirus to the latest version provided by Avast.
Who is affected by ZDI-CAN-23731?
ZDI-CAN-23731 affects users of Avast Free Antivirus running vulnerable versions.
What type of attack does ZDI-CAN-23731 facilitate?
ZDI-CAN-23731 facilitates local privilege escalation for attackers with low-privileged code execution.
What must an attacker do to exploit ZDI-CAN-23731?
An attacker must first gain the ability to execute low-privileged code on the target system to exploit ZDI-CAN-23731.
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