一个基于fuzz的waf绕过测试工具，当前支持命令执行、SQL注入绕过。后续会支持更多绕过方式、攻击类型。
Usage:
./x-waf -target <request_file> [flags]
./x-waf [command]
Available Commands:
cmd fuzz cmd injection
completion Generate the autocompletion script for the specified shell
help Help about any command
sql fuzz sql injection
Flags:
--debug-file-path string specify request response log file path
--fuzz-count int specify max fuzz times (default 10000000)
-h, --help help for ./x-waf
--log-level string specify log level, default is info (default "info")
--target string specify the request file path
--target-https specify whether the request is https protocol (default true)
--target-mark string specify the request fuzz position mark (default "%{{.*}}%")
--waf-block-regex string specify waf block regex
--waf-block-rsp-status-code int specify waf block response status code (default 403)
Use "./x-waf [command] --help" for more information about a command.
1、准备需要绕过的HTTP请求文件，例如：test.http
POST /demo/detect/ HTTP/1.1
Host: cmdchop.chaitin.com
accept: application/json, text/javascript, */*; q=0.01
accept-language: zh-CN,zh;q=0.9,en;q=0.8
content-type: application/json
cookie: _ga=GA1.2.212169703.1725506930; _ga_PNVRK9GRJ2=GS1.2.1725527773.2.1.1725529516.0.0.0; user_id=f62aa452-d92a-405a-9295-49aba0ed6d47; cid=dea7646d-7542-432f-858f-c745914a1e73; mid=c0b990d0-a3dc-455c-9f66-bac94da0b098
origin: https://cmdchop.chaitin.com
priority: u=1, i
referer: https://cmdchop.chaitin.com/demo/
sec-ch-ua: "Chromium";v="130", "Google Chrome";v="130", "Not?A_Brand";v="99"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "macOS"
sec-fetch-dest: empty
sec-fetch-mode: cors
sec-fetch-site: same-origin
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
x-requested-with: XMLHttpRequest
Content-Length: 50
{"type":"urlpath","payload":"/?p=cat /etc/passwd"}
2、将payload的位置用%{{.*}}%标记，例如：
{"type":"urlpath","payload":"/?p=%{{cat /etc/passwd}}%"}
3、运行命令：
./x_waf --target test/chatin-cmdchop.http --waf-block-regex payload cmd --fuzz-cmd-mode real
--fuzz-cmd-mode real 会实际执行命令，验证payload是否有效，当前只支持查看/etc/passwd文件内容
--fuzz-cmd-mode mock 会解析命令，验证payload是否有效，支持任意命令
--waf-block-regex payload 指定waf拦截时页面响应的匹配内容，支持正则表达式
4、查看bypass结果：
cat result.txt
