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In MinIO versions prior to the fix for CVE-2022-35919, any 'admin' user authorized for the admin:ServerUpdate action can exploit the ServerUpdate API to trigger an error that causes the server to return the contents of an arbitrary file path. The vulnerability arises because the error response includes the content of the requested path, allowing an attacker with the necessary privileges to read any file accessible to the MinIO process on the underlying OS.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
admin:ServerUpdate permission can read arbitrary files on the server, potentially exposing sensitive information such as configuration files, credentials, or other data accessible to the MinIO process. This could lead to further compromise of the system or lateral movement within the environment.If you can’t patch tonight, do this now.
admin:ServerUpdate action for all admin users via IAM policies. Restrict admin privileges to only those users who absolutely require them and audit existing permissions to minimize exposure.Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
No public activity tracked yet. Mallory keeps watching.
No public activity observed for this vulnerability.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
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