Safe3-uusec-waf/rules/upload-file-name-filtering.lua
UUSEC Technology e66cca6014 v7.0.0
### Feature Updates

**Interface & Management**

- Redesigned main program and management interface with improved aesthetics and usability, supports UI language switching (English/Chinese)
- Added Rule Collections functionality: Create custom rule templates for batch configuration
- Introduced whitelist rules that terminate further rule matching upon success
- UUSEC WAF Rules API intelligent suggestions during advanced rule editing:ml-citation
- New plugin management supporting hot-reloaded plugins to extend WAF capabilities

**Protocol & Optimization**

- Supports streaming responses for continuous data push (e.g., LLM stream outputs)
- Enables Host header modification during proxying for upstream service access
- Search engine validation: `waf.searchEngineValid(dns,ip,ua)` prevents high-frequency rules from affecting SEO indexing
- Interception log report generation (HTML/PDF exports)
- Automatic rotation of UUSEC WAF error/access logs to prevent performance issues

**Security & Infrastructure**

- Expanded free SSL certificate support: HTTP-01 & DNS-01 verification across 50+ domain providers
- Customizable advanced WAF settings: HTTP2, GZIP, HTTP Caching, SSL protocols, etc
- Cluster configuration: Manage UUSEC WAF nodes and ML servers via web UI
2025-07-02 09:47:41 +08:00

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Lua

--[[
Rule name: Upload file name filtering
Filtering stage: Request phase
Threat level: Critical
Rule description: Filter webpage script extensions in uploaded file names and block webshell uploads
--]]
local function fileNameMatch(v)
v = waf.htmlEntityDecode(v)
if v then
local m = waf.rgxMatch(v, "\\.(?:as|cer\\b|cdx|ph|jsp|war|class|exe|ht|env|user\\.ini)|php\\.ini", "joi")
if m then
return m, v
end
end
return false
end
if waf.form then
local m, d = waf.knFilter(waf.form["FILES"], fileNameMatch, 1)
return m, d, true
end
return false