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CVE-2020-9452

7.8 · HIGH

An issue was discovered in Acronis True Image 2020 24.5.22510.

Published May 25, 2021CWE-59EPSS 0.48%

Overview

CVE-2020-9452 is a high-severity vulnerability. It was published on May 25, 2021 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refdanishcyberdefence.dk/blogRefmadsjoensen.dk/cve-2020-9452/Refwww.acronis.comRefdanishcyberdefence.dk/blogRefmadsjoensen.dk/cve-2020-9452/Refwww.acronis.com

How CyberStrike helps

Frequently asked questions

What is CVE-2020-9452?

CVE-2020-9452 is a high-severity vulnerability. It was published on May 25, 2021 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2020-9452?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-9452?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-9452?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-9452 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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