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Merge pull request #12 from GitHubSecurityLab/part-4
Part 4
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‎4/README.md

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To run the queries in this folder, follow the set up instructions for [VS Code CodeQL starter workspace](https://github.com/github/vscode-codeql-starter) and install VS Code CodeQL extension. Then, in the CodeQL extension select the `vulnerable-code-snippets-db` database.
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For more information around CodeQL, set up and running queries, see [CodeQL zero to hero part 2](https://github.blog/developer-skills/github/codeql-zero-to-hero-part-2-getting-started-with-codeql/) and the other blog posts in the series.

‎4/queries/1.ql

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/**
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* @id codeql-zero-to-hero/4-1
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* @severity error
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* @kind problem
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*/
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import python
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import semmle.python.ApiGraphs
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from API::CallNode node
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where node =
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API::moduleImport("gradio").getMember("Interface").getACall()
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select node, "Call to gr.Interface"

‎4/queries/2.ql

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/**
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* @id codeql-zero-to-hero/4-2
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* @severity error
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* @kind problem
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*/
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import python
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import semmle.python.ApiGraphs
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from API::CallNode node
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where node =
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API::moduleImport("gradio").getMember("Interface").getACall()
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select node.getParameter(0, "fn").getParameter(_).asSource(), "Gradio sources"

‎4/queries/3.ql

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/**
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* @id codeql-zero-to-hero/4-3
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* @severity error
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* @kind problem
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*/
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import python
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import semmle.python.ApiGraphs
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import semmle.python.dataflow.new.RemoteFlowSources
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class GradioInterface extends RemoteFlowSource::Range {
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GradioInterface() {
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exists(API::CallNode n |
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n = API::moduleImport("gradio").getMember("Interface").getACall() |
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this = n.getParameter(0, "fn").getParameter(_).asSource())
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}
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override string getSourceType() { result = "Gradio untrusted input" }
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}
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from GradioInterface inp
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select inp, "Gradio sources"

‎4/queries/4.ql

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/**
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* @id codeql-zero-to-hero/4-4
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* @severity error
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* @kind problem
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*/
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import python
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import semmle.python.ApiGraphs
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import semmle.python.dataflow.new.RemoteFlowSources
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class GradioInterface extends RemoteFlowSource::Range {
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GradioInterface() {
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exists(API::CallNode n |
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n = API::moduleImport("gradio").getMember("Interface").getACall() |
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this = n.getParameter(0, "fn").getParameter(_).asSource())
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}
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override string getSourceType() { result = "Gradio untrusted input" }
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}
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from RemoteFlowSource rfs
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select rfs, "All python sources"

‎4/queries/5.ql

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/**
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* @id codeql-zero-to-hero/4-5
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* @severity error
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* @kind problem
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*/
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import python
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import semmle.python.ApiGraphs
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from API::CallNode node
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where node =
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API::moduleImport("gradio").getMember("Button").getReturn()
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.getMember("click").getACall()
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select node.getParameter(0, "fn").getParameter(_), "Gradio sources"

‎4/queries/6.ql

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/**
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* @id codeql-zero-to-hero/4-6
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* @severity error
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* @kind problem
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*/
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import python
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import semmle.python.ApiGraphs
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import semmle.python.dataflow.new.RemoteFlowSources
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class GradioButton extends RemoteFlowSource::Range {
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GradioButton() {
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exists(API::CallNode n |
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n = API::moduleImport("gradio").getMember("Button").getReturn()
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.getMember("click").getACall() |
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this = n.getParameter(0, "fn").getParameter(_).asSource())
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}
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override string getSourceType() { result = "Gradio untrusted input" }
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}
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from GradioButton inp
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select inp, "Gradio sources"

‎4/queries/7.ql

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/**
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* @id codeql-zero-to-hero/4-7
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* @severity error
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* @kind path-problem
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*/
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import python
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import semmle.python.dataflow.new.DataFlow
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import semmle.python.dataflow.new.TaintTracking
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import semmle.python.ApiGraphs
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import semmle.python.dataflow.new.RemoteFlowSources
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import MyFlow::PathGraph
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class GradioButton extends RemoteFlowSource::Range {
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GradioButton() {
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exists(API::CallNode n |
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n = API::moduleImport("gradio").getMember("Button").getReturn()
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.getMember("click").getACall() |
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this = n.getParameter(0, "fn").getParameter(_).asSource())
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}
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override string getSourceType() { result = "Gradio untrusted input" }
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}
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class GradioInterface extends RemoteFlowSource::Range {
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GradioInterface() {
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exists(API::CallNode n |
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n = API::moduleImport("gradio").getMember("Interface").getACall() |
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this = n.getParameter(0, "fn").getParameter(_).asSource())
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}
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override string getSourceType() { result = "Gradio untrusted input" }
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}
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class OsSystemSink extends API::CallNode {
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OsSystemSink() {
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this = API::moduleImport("os").getMember("system").getACall()
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}
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}
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private module MyConfig implements DataFlow::ConfigSig {
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predicate isSource(DataFlow::Node source) {
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source instanceof RemoteFlowSource
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}
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predicate isSink(DataFlow::Node sink) {
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exists(OsSystemSink call |
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sink = call.getArg(0)
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)
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}
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}
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module MyFlow = TaintTracking::Global<MyConfig>;
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from MyFlow::PathNode source, MyFlow::PathNode sink
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where MyFlow::flowPath(source, sink)
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select sink.getNode(), source, sink, "Data Flow from a Gradio source to `os.system`"

‎4/vulnerable-code-snippets-db.zip

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‎4/vulnerable-code-snippets/cmdi-interface-list.py

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import gradio as gr
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import os
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def execute_cmd(folder, logs):
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cmd = f"python caption.py --dir={folder} --logs={logs}"
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os.system(cmd)
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return f"Command: {cmd}"
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folder = gr.Textbox(placeholder="Directory to caption")
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logs = gr.Checkbox(label="Save verbose logs")
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output = gr.Textbox()
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demo = gr.Interface(
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fn=execute_cmd,
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inputs=[folder, logs],
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outputs=output)
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if __name__ == "__main__":
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demo.launch(debug=True)

‎4/vulnerable-code-snippets/cmdi-interface.py

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import gradio as gr
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import os
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def execute_cmd(folder):
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cmd = f"python caption.py --dir={folder}"
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os.system(cmd)
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return f"Command: {cmd}"
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folder = gr.Textbox(placeholder="Directory to caption")
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output = gr.Textbox()
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demo = gr.Interface(
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execute_cmd,
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folder,
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output)
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if __name__ == "__main__":
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demo.launch(debug=True)

‎4/vulnerable-code-snippets/cmdi-list.py

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import gradio as gr
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import os
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def execute_cmd(folder, logs):
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cmd = f"python caption.py --dir={folder} --logs={logs}"
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os.system(cmd)
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return f"Command: {cmd}"
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with gr.Blocks() as demo:
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gr.Markdown("Create caption files for images in a directory")
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with gr.Row():
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folder = gr.Textbox(placeholder="Directory to caption")
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logs = gr.Checkbox(label="Save verbose logs")
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output = gr.Textbox()
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btn = gr.Button("Run")
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btn.click(
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fn=execute_cmd,
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inputs=[folder, logs],
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outputs=output)
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if __name__ == "__main__":
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demo.launch(debug=True)

‎4/vulnerable-code-snippets/cmdi.py

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import gradio as gr
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import os
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def execute_cmd(folder):
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cmd = f"python caption.py --dir={folder}"
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os.system(cmd)
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return f"Command: {cmd}"
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with gr.Blocks() as demo:
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gr.Markdown("Create caption files for images in a directory")
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with gr.Row():
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folder = gr.Textbox(placeholder="Directory to caption")
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output = gr.Textbox()
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btn = gr.Button("Run")
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btn.click(
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execute_cmd,
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folder,
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output)
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if __name__ == "__main__":
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demo.launch(debug=True)

‎README.md

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This repository contains challenges for the CodeQL Zero to Hero blog post series.
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- Link to the first blog post—[CodeQL zero to hero part 1: the fundamentals of static analysis for vulnerability research](https://github.blog/2023-03-31-codeql-zero-to-hero-part-1-the-fundamentals-of-static-analysis-for-vulnerability-research/). The challenges accompanying the blog post are in [folder 1.](https://github.com/GitHubSecurityLab/codeql-zero-to-hero/tree/main/1)
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- Link to the second blog post—[CodeQL zero to hero part 2: getting started with CodeQL](https://github.blog/2023-06-15-codeql-zero-to-hero-part-2-getting-started-with-codeql/). The challenges accompanying the blog post are in [folder 2.](https://github.com/GitHubSecurityLab/codeql-zero-to-hero/tree/main/2)
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- Link to the third blog post—[CodeQL zero to hero part 3: security research](https://github.blog/2024-04-29-codeql-zero-to-hero-part-3-security-research-with-codeql/). The challenges accompanying the blog post are in [folder 3](https://github.com/GitHubSecurityLab/codeql-zero-to-hero/tree/main/3).
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- [CodeQL zero to hero part 1: the fundamentals of static analysis for vulnerability research](https://github.blog/2023-03-31-codeql-zero-to-hero-part-1-the-fundamentals-of-static-analysis-for-vulnerability-research/). The challenges accompanying the blog post are in [folder 1.](https://github.com/GitHubSecurityLab/codeql-zero-to-hero/tree/main/1)
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- [CodeQL zero to hero part 2: getting started with CodeQL](https://github.blog/2023-06-15-codeql-zero-to-hero-part-2-getting-started-with-codeql/). The challenges accompanying the blog post are in [folder 2.](https://github.com/GitHubSecurityLab/codeql-zero-to-hero/tree/main/2)
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- [CodeQL zero to hero part 3: security research](https://github.blog/2024-04-29-codeql-zero-to-hero-part-3-security-research-with-codeql/). The challenges accompanying the blog post are in [folder 3](https://github.com/GitHubSecurityLab/codeql-zero-to-hero/tree/main/3).
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- [CodeQL zero to hero part 4: Gradio case study](). The challenges accompanying the blog post are in [folder 3](https://github.com/GitHubSecurityLab/codeql-zero-to-hero/tree/main/3).

‎codeql-pack.lock.yml

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‎codeql-pack.yml

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