ZDI-24-1005: (0Day) Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability
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.
Other sources
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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2024-7233.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-24-1005?
ZDI-24-1005 is classified as a high-severity vulnerability due to its potential for privilege escalation.
How do I fix ZDI-24-1005?
To mitigate ZDI-24-1005, ensure that Avast Free Antivirus is updated to the latest version that addresses this vulnerability.
Who is affected by ZDI-24-1005?
ZDI-24-1005 affects users of Avast Free Antivirus who have low-privileged code execution capabilities on their systems.
What type of vulnerability is ZDI-24-1005?
ZDI-24-1005 is a privilege escalation vulnerability that allows local attackers to gain elevated permissions.
What must an attacker do to exploit ZDI-24-1005?
To exploit ZDI-24-1005, an attacker must first have the ability to execute low-privileged code on the target system.