CVE-2020-9451 Details
Description
An issue was discovered in Acronis True Image 2020 24.5.22510. anti_ransomware_service.exe keeps a log in a folder where unprivileged users have write permissions. The logs are generated in a predictable pattern, allowing an unprivileged user to create a hardlink from a (not yet created) log file to anti_ransomware_service.exe. On reboot, this forces the anti_ransomware_service to try to write its log into its own process, crashing in a SHARING VIOLATION. This crash occurs on every reboot.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://danishcyberdefence.dk/blog | CVE | Third Party Advisory |
| https://madsjoensen.dk/cve-2020-9451/ | CVE | ExploitThird Party Advisory |
| https://www.acronis.com | CVE | Vendor Advisory |
| https://danishcyberdefence.dk/blog | [email protected] | Third Party Advisory |
| https://madsjoensen.dk/cve-2020-9451/ | [email protected] | ExploitThird Party Advisory |
| https://www.acronis.com | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-276 | Incorrect Default Permissions | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| acronis true image 2020 | 24.5.22510 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Jun 3, 2021 | Initial Analysis | [email protected] |