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31 lines
899 B
Python
31 lines
899 B
Python
from flask import Flask, request
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import lxml.etree
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app = Flask(__name__)
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@app.route("/vuln-handler")
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def vuln_handler():
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xml_content = request.args['xml_content']
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return lxml.etree.fromstring(xml_content).text
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@app.route("/safe-handler")
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def safe_handler():
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xml_content = request.args['xml_content']
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parser = lxml.etree.XMLParser(resolve_entities=False)
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return lxml.etree.fromstring(xml_content, parser=parser).text
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@app.route("/super-vuln-handler")
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def super_vuln_handler():
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xml_content = request.args['xml_content']
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parser = lxml.etree.XMLParser(
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# allows XXE
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resolve_entities=True,
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# allows remote XXE
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no_network=False,
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# together with `no_network=False`, allows DTD-retrival
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load_dtd=True,
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# allows DoS attacks
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huge_tree=True,
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)
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return lxml.etree.fromstring(xml_content, parser=parser).text
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