Unraid Remote Code Execution Vulnerability
Unraid contains a vulnerability due to the insecure use of the extract PHP function that can be abused to execute remote code as root. This CVE is chainable with CVE-2020-5849 for initial access.
A remote attacker, without authentication, can achieve full data confidentiality loss, arbitrary modification of data, complete denial of service or system unavailability. Federal agencies are required to remediate by 2022-05-03 under CISA BOD 22-01.
This vulnerability affects Unraid Unraid. Exploitation requires remote network access, low attack complexity, no authentication required, and no user interaction required.
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Phishing link
🖼
Malicious file
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Server compromised
Probably yes if any of these apply:
Active exploitation documented in the wild. Threat-research write-up: http://packetstormsecurity.com/files/157275/Unraid-6.8.0-Authentication-Bypass-Arbitrary-Code-Execution.html
Manual remediation steps
Apply the Vendor Patch
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog — apply the vendor's security update as soon as possible.
CISA required action: Apply updates per vendor instructions.
References
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References