Hardening suggestions for insecure-kubernetes-deployments / empty #62

pixeebot · 2024-11-22T20:20:00Z

I've reviewed the recently opened PR (61 - empty) and have identified some area(s) that could benefit from additional hardening measures.

These changes should help prevent potential security vulnerabilities and improve overall code quality.

Thank you for your consideration!
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pixeebot · 2024-11-22T20:20:02Z

insecure-app/app.py

        # 7 - Server-Side Request Forgery (SSRF)
        elif 'url' in request.form:
            url = request.form['url']
            try:


Add timeout to requests call

pixeebot · 2024-11-22T20:20:03Z

insecure-app/ransomware.py


        # Get public IP of person, for more analysis etc. (Check if you have hit gov, military ip space LOL)
-        self.publicIP = requests.get('https://api.ipify.org').text
+        self.publicIP = requests.get('https://api.ipify.org', timeout=60).text


Add timeout to requests call

pixeebot · 2024-11-22T20:20:04Z

llm-testing/llm-testing.py

    headers = {"Authorization": f"Bearer {api_token}"}
    API_URL = f"https://api-inference.huggingface.co/models/{model_id}"
-    response = requests.post(API_URL, headers=headers, json={"inputs": payload})
+    response = requests.post(API_URL, headers=headers, json={"inputs": payload}, timeout=60)


Add timeout to requests call

pixeebot · 2024-11-22T20:20:05Z

insecure-app/app.py

                # Use lxml to parse the XML data
-                parser = etree.XMLParser(load_dtd=True, resolve_entities=True)
-                tree = etree.fromstring(xml_data.encode(), parser)
+                parser = etree.XMLParser(load_dtd=True, resolve_entities=False)


Call lxml.etree.parse and lxml.etree.fromstring with a safe parser.

pixeebot · 2024-11-22T20:20:06Z

insecure-app/app.py

            url = request.form['url']
            try:
-                response = requests.get(url)
+                response = safe_requests.get(url, timeout=60)


Switch use of requests for security.safe_requests

pixeebot · 2024-11-22T20:20:06Z

insecure-app/requirements.txt

 flask==3.0.2
-#cryptograpy==3.3.2
+#cryptograpy==3.3.2
+security==1.3.1


This library holds security tools for protecting Python API calls.

License: MIT ✅ Open Source ✅ More facts

pixeebot · 2024-11-22T20:20:07Z

insecure-app/app.py

        if 'command' in request.form:
            cmd = request.form['command']
-            process = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+            process = safe_command.run(subprocess.Popen, cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)


Replaces subprocess.{func} with more secure safe_command library functions.

pixeebot · 2024-11-22T20:20:08Z

insecure-app/app.py

                # Use lxml to parse the XML data
-                parser = etree.XMLParser(load_dtd=True, resolve_entities=True)
-                tree = etree.fromstring(xml_data.encode(), parser)
+                parser = etree.XMLParser(load_dtd=True, resolve_entities=False)


Replace lxml parser parameters with safe defaults.

dryrunsecurity · 2024-11-22T20:20:22Z

DryRun Security Summary

The provided code changes cover a mix of security improvements, such as input validation and vulnerability mitigation, as well as the concerning introduction of ransomware functionality, which should not be merged or deployed as it poses a significant risk to the security and privacy of users.

Expand for full summary

Summary:

The provided code changes cover various aspects of application security, with a mix of both positive and concerning developments. The changes range from improving input validation and sanitization, mitigating potential vulnerabilities like command injection and SSRF, to the introduction of a concerning ransomware implementation.

The positive changes include the use of custom wrapper functions to handle potentially dangerous operations, such as command execution and external requests, which suggests a security-conscious approach. Additionally, the removal of hardcoded AWS credentials and the mitigation of XML External Entity (XXE) injection are also welcome improvements.

However, the code still contains several unaddressed security vulnerabilities, such as SQL injection, file upload and path traversal, and cross-site scripting (XSS) issues. These vulnerabilities should be addressed to improve the overall security of the application.

The most concerning change is the introduction of ransomware functionality, which is a serious security threat. This code should not be merged or deployed, as it poses a significant risk to the security and privacy of users. As an application security engineer, I would strongly advise against the development or deployment of such malicious software.

Files Changed:

llm-testing/llm-testing.py:
- The main change is the addition of a timeout parameter to the requests.post() call in the query() function, likely to prevent the function from hanging indefinitely.
- The code uses input and output scanners to sanitize user input and the API response, which helps mitigate potential security risks.
- The use of a secure API token and a Vault class suggests the application has measures in place to handle sensitive information securely.
insecure-app/requirements.txt:
- A new dependency, security==1.3.1, has been added to the requirements.txt file, indicating the application may be handling sensitive data or implementing security-critical functionality.
- The existing dependencies, such as cryptography==3.3.2, are using up-to-date and secure versions.
insecure-app/ransomware.py:
- This file implements a ransomware attack, which is a serious security threat. The code contains hardcoded AWS credentials, downloads and executes potentially malicious content, and uses techniques to ensure the ransom note remains in the foreground.
- This code should not be merged or deployed, as it poses a significant risk to the security and privacy of users.
insecure-app/app.py:
- The code changes introduce several security improvements, such as mitigating command injection, XXE injection, and SSRF vulnerabilities, as well as removing hardcoded AWS credentials.
- However, the application still contains SQL injection, file upload and path traversal, and XSS vulnerabilities that need to be addressed.

Code Analysis

We ran 9 analyzers against 4 files and 1 analyzer had findings. 8 analyzers had no findings.

Analyzer	Findings
Sensitive Files Analyzer	1 finding

Riskiness

🟢 Risk threshold not exceeded.

View PR in the DryRun Dashboard.

socket-security · 2024-11-22T20:21:09Z

New dependencies detected. Learn more about Socket for GitHub ↗︎

Package	New capabilities	Transitives	Size	Publisher
pypi/[email protected]	environment, eval, filesystem, network, shell	`0`	145 kB	clavedeluna, pixee

View full report↗︎

jit-ci

❌ Jit has detected 2 important findings in this PR that you should review.
The findings are detailed below as separate comments.
It’s highly recommended that you fix these security issues before merge.

jit-ci · 2024-11-22T20:22:10Z

insecure-app/app.py

 import sqlite3
-import requests
 from lxml import etree
+import lxml.etree


Security control: Static Code Analysis Python Semgrep

Type: Potential Xxe Vulnerability With Native Python Xml Libraries

Description: Found use of the native Python XML libraries, which is vulnerable to XML external entity (XXE)
attacks. The Python documentation recommends the 'defusedxml' library instead. Use 'defusedxml'.
See https://github.com/tiran/defusedxml for more information.

Severity: HIGH

Learn more about this issue

Jit Bot commands and options (e.g., ignore issue)

You can trigger Jit actions by commenting on this PR review:

#jit_ignore_fp Ignore and mark this specific single instance of finding as “False Positive”

#jit_ignore_accept Ignore and mark this specific single instance of finding as “Accept Risk”

#jit_ignore_type_in_file Ignore any finding of type "Potential XXE vulnerability with native Python XML libraries" in insecure-app/app.py; future occurrences will also be ignored.

#jit_undo_ignore Undo ignore command

jit-ci · 2024-11-22T20:22:10Z

insecure-app/app.py

-                parser = etree.XMLParser(load_dtd=True, resolve_entities=True)
-                tree = etree.fromstring(xml_data.encode(), parser)
+                parser = etree.XMLParser(load_dtd=True, resolve_entities=False)
+                tree = etree.fromstring(xml_data.encode(), parser, parser=lxml.etree.XMLParser(resolve_entities=False))


Security control: Static Code Analysis Python Semgrep

Type: Potential Xxe Vulnerability With Native Python Xml Libraries

Description: Found use of the native Python XML libraries, which is vulnerable to XML external entity (XXE)
attacks. The Python documentation recommends the 'defusedxml' library instead. Use 'defusedxml'.
See https://github.com/tiran/defusedxml for more information.

Severity: HIGH

Learn more about this issue

Jit Bot commands and options (e.g., ignore issue)

You can trigger Jit actions by commenting on this PR review:

#jit_ignore_fp Ignore and mark this specific single instance of finding as “False Positive”

#jit_ignore_accept Ignore and mark this specific single instance of finding as “Accept Risk”

#jit_ignore_type_in_file Ignore any finding of type "Potential XXE vulnerability with native Python XML libraries" in insecure-app/app.py; future occurrences will also be ignored.

#jit_undo_ignore Undo ignore command

pixeebot bot added 5 commits November 22, 2024 20:19

Add timeout to requests calls

476193e

Use Safe Parsers in lxml Parsing Functions

2b1a8c7

Sandbox URL Creation

c1e6d5b

Sandbox Process Creation

044130a

Use Safe Defaults for lxml Parsers

9791ab7

pixeebot bot requested a review from confusedcrib as a code owner November 22, 2024 20:20

pixeebot bot commented Nov 22, 2024

View reviewed changes

jit-ci bot reviewed Nov 22, 2024

View reviewed changes

pixeebot bot mentioned this pull request Dec 8, 2024

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confusedcrib closed this Dec 19, 2024

Hardening suggestions for insecure-kubernetes-deployments / empty #62

Hardening suggestions for insecure-kubernetes-deployments / empty #62

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dryrunsecurity bot commented Nov 22, 2024

DryRun Security Summary

Code Analysis

Riskiness

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socket-security bot commented Nov 22, 2024

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