CVE-2020-9452: High severity acronis true image vulnerability
An issue was discovered in Acronis True Image 2020 24.5.22510. antiransomwareservice.exe includes functionality to quarantine files by copying a suspected ransomware file from one directory to another using SYSTEM privileges. Because unprivileged users have write permissions in the quarantine folder, it is possible to control this privileged write with a hardlink. This means that an unprivileged user can write/overwrite arbitrary files in arbitrary folders. Escalating privileges to SYSTEM is trivial with arbitrary writes. While the quarantine feature is not enabled by default, it can be forced to copy the file to the quarantine by communicating with antiransomwareservice.exe through its REST API.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2020-9452?
CVE-2020-9452 is considered a critical vulnerability due to its potential for privilege escalation.
How do I fix CVE-2020-9452?
To fix CVE-2020-9452, update Acronis True Image to the latest version that addresses this vulnerability.
What systems are affected by CVE-2020-9452?
CVE-2020-9452 specifically affects Acronis True Image version 24.5.22510.
What are the implications of CVE-2020-9452?
The implications of CVE-2020-9452 include the risk of unprivileged users exploiting SYSTEM privileges to manipulate quarantined files.
Is there a patch available for CVE-2020-9452?
Yes, Acronis has released a patch for CVE-2020-9452 as part of their regular software updates.