An issue was discovered in Acronis True Image 2020 24.5.22510. anti_ransomware_service.exe exposes a REST API that can be used by everyone, even unprivileged users. This API is used to communicate from the GUI to anti_ransomware_service.exe. This can be exploited to add an arbitrary malicious executable to the whitelist, or even exclude an entire drive from being monitored by anti_ransomware_service.exe.
During installation, installed file permissions are set to allow anyone to modify those files.
Link | Tags |
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https://www.acronis.com | vendor advisory |
https://danishcyberdefence.dk/blog | third party advisory |
https://madsjoensen.dk/cve-2020-9450/ | third party advisory exploit |