CVE-2020-9452
First published: Tue May 25 2021(Updated: )
An issue was discovered in Acronis True Image 2020 24.5.22510. anti_ransomware_service.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 anti_ransomware_service.exe through its REST API.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Acronis True Image 2020 | =24.5.22510 |
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Reference Links
- collector/nvd-index
- agent/severity
- agent/references
- agent/weakness
- agent/author
- agent/type
- agent/event
- agent/description
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/acronis
- canonical/acronis true image 2020
- version/acronis true image 2020/24.5.22510