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CVE-2015-6589 is a directory traversal vulnerability in Kaseya Virtual System Administrator (VSA) versions 7.0.0.0 before 7.0.0.33, 8.0.0.0 before 8.0.0.23, 9.0.0.0 before 9.0.0.19, and 9.1.0.0 before 9.1.0.9. The flaw exists due to insufficient restrictions on file paths in the json.ashx handler, allowing authenticated users to upload files to arbitrary locations on the server. This can be leveraged to write and execute arbitrary ASP files, resulting in remote code execution with the privileges of the web server.
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What an attacker gets, and what they’ve been doing with it.
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No valid public exploits. Mallory filtered out 2 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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No public activity observed for this vulnerability.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
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