bandit
Use Semgrep as a universal linter to identify vulnerabilities in your code base with the bandit (https://github.com/PyCQA/bandit) rule pack.
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Rules (18)
semgrepCertificate verification has been explicitly disabled. This permits insecure connections to insecure servers. Re-enable certification validation.
semgrepDetected SHA1 hash algorithm which is considered insecure. SHA1 is not collision resistant and is therefore not suitable as a cryptographic signature. Use SHA256 or SHA3 instead.
semgrepThe Python documentation recommends using `defusedxml` instead of `xml` because the native Python `xml` library is vulnerable to XML External Entity (XXE) attacks. These attacks can leak confidential data and "XML bombs" can cause denial of service.
semgrepAvoid using `pickle`, which is known to lead to code execution vulnerabilities. When unpickling, the serialized data could be manipulated to run arbitrary code. Instead, consider serializing the relevant data as JSON or a similar text-based serialization format.
semgrepDetected a dynamic value being used with urllib. urllib supports 'file://' schemes, so a dynamic value controlled by a malicious actor may allow them to read arbitrary files. Audit uses of urllib calls to ensure user data cannot control the URLs, or consider using the 'requests' library instead.
semgrep'mark_safe()' is used to mark a string as "safe" for HTML output. This disables escaping and could therefore subject the content to XSS attacks. Use 'django.utils.html.format_html()' to build HTML for rendering instead.
semgrepDetected the use of eval(). eval() can be dangerous if used to evaluate dynamic content. If this content can be input from outside the program, this may be a code injection vulnerability. Ensure evaluated content is not definable by external sources.
semgrepFound 'subprocess' function '$FUNC' with 'shell=True'. This is dangerous because this call will spawn the command using a shell process. Doing so propagates current shell settings and variables, which makes it much easier for a malicious actor to execute commands. Use 'shell=False' instead.
semgrepDetected possible formatted SQL query. Use parameterized queries instead.
semgrepInsecure XML parsing functionality, prefer 'defusedxml'
Detected hardcoded temp directory. Consider using 'tempfile.TemporaryFile' instead.
Detected MD2 hash algorithm which is considered insecure. This algorithm has many known vulnerabilities and has been deprecated. Use SHA256 or SHA3 instead.
Detected MD4 hash algorithm which is considered insecure. This algorithm has many known vulnerabilities and has been deprecated. Use SHA256 or SHA3 instead.
Detected MD5 hash algorithm which is considered insecure. MD5 is not collision resistant and is therefore not suitable as a cryptographic signature. Use SHA256 or SHA3 instead.
Detected SHA1 hash algorithm which is considered insecure. SHA1 is not collision resistant and is therefore not suitable as a cryptographic signature. Use SHA256 or SHA3 instead.
'mark_safe()' is used to mark a string as "safe" for HTML output. This disables escaping and could therefore subject the content to XSS attacks. Use 'django.utils.html.format_html()' to build HTML for rendering instead.
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.
An insecure SSL version was detected. TLS versions 1.0, 1.1, and all SSL versions are considered weak encryption and are deprecated. Use 'ssl.PROTOCOL_TLSv1_2' or higher.